Window management

From Rosetta Code
Revision as of 18:23, 30 April 2021 by rosettacode>Gerard Schildberger (→‎version 2: added/changed comments and whitespace.)
Task
Window management
You are encouraged to solve this task according to the task description, using any language you may know.

Treat windows or at least window identities as first class objects.

  • Store window identities in variables, compare them for equality.
  • Provide examples of performing some of the following:
    • hide,
    • show,
    • close,
    • minimize,
    • maximize,
    • move,     and
    • resize a window.


The window of interest may or may not have been created by your program.

AutoHotkey

<lang AutoHotkey>F1::  ;; when user hits the F1 key, do the following WinGetTitle, window, A  ; get identity of active window into a variable WinMove, %window%, , 100, 100, 800, 800 ; move window to coordinates, 100, 100

                                       ; and change size to 800 x 800 pixels

sleep, 2000 WinHide, % window  ; hide window TrayTip, hidden, window is hidden, 2 sleep, 2000 WinShow, % window  ; show window again loop, {

 inputbox, name, what was the name of your window? 
 if (name = window) ; compare window variables for equality
 {
   msgbox you got it
   break
 }
else try again

} WinClose, % window return</lang>

BBC BASIC

<lang bbcbasic> SWP_NOMOVE = 2

     SWP_NOZORDER = 4
     SW_MAXIMIZE = 3
     SW_MINIMIZE = 6
     SW_RESTORE = 9
     SW_HIDE = 0
     SW_SHOW = 5
     
     REM Store window handle in a variable:
     myWindowHandle% = @hwnd%
     
     PRINT "Hiding the window in two seconds..."
     WAIT 200
     SYS "ShowWindow", myWindowHandle%, SW_HIDE
     WAIT 200
     SYS "ShowWindow", myWindowHandle%, SW_SHOW
     PRINT "Windows shown again."
     
     PRINT "Minimizing the window in two seconds..."
     WAIT 200
     SYS "ShowWindow", myWindowHandle%, SW_MINIMIZE
     WAIT 200
     SYS "ShowWindow", myWindowHandle%, SW_RESTORE
     PRINT "Maximizing the window in two seconds..."
     WAIT 200
     SYS "ShowWindow", myWindowHandle%, SW_MAXIMIZE
     WAIT 200
     SYS "ShowWindow", myWindowHandle%, SW_RESTORE
     PRINT "Now restored to its normal size."
     
     PRINT "Resizing the window in two seconds..."
     WAIT 200
     SYS "SetWindowPos", myWindowHandle%, 0, 0, 0, 400, 200, \
     \    SWP_NOMOVE OR SWP_NOZORDER
     
     PRINT "Closing the window in two seconds..."
     WAIT 200
     QUIT</lang>

C

C does not have any standard windowing library, although cross platform libraries are available, and although it's technically possible to create windows from scratch given the Dark powers that C commands, I chose the simplest option, the Windows API. On running this program, the user is taken over all the sub tasks listed in this task one by one.

Windows

<lang C>

  1. include<windows.h>
  2. include<unistd.h>
  3. include<stdio.h>

const char g_szClassName[] = "weirdWindow";

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {

   switch(msg)
   {
       case WM_CLOSE:
           DestroyWindow(hwnd);
       break;
       case WM_DESTROY:
           PostQuitMessage(0);
       break;
       default:
           return DefWindowProc(hwnd, msg, wParam, lParam);
   }
   return 0;

}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,

   LPSTR lpCmdLine, int nCmdShow)

{

   WNDCLASSEX wc;
   HWND hwnd[3];
   MSG Msg;

int i,x=0,y=0; char str[3][100]; int maxX = GetSystemMetrics(SM_CXSCREEN), maxY = GetSystemMetrics(SM_CYSCREEN);

char messages[15][180] = {"Welcome to the Rosettacode Window C implementation.", "If you can see two blank windows just behind this message box, you are in luck.", "Let's get started....", "Yes, you will be seeing a lot of me :)", "Now to get started with the tasks, the windows here are stored in an array of type HWND, the array is called hwnd (yes, I know it's very innovative.)", "Let's compare the windows for equality.", "Now let's hide Window 1.", "Now let's see Window 1 again.", "Let's close Window 2, bye, bye, Number 2 !", "Let's minimize Window 1.", "Now let's maximize Window 1.", "And finally we come to the fun part, watch Window 1 move !", "Let's double Window 1 in size for all the good work.", "That's all folks ! (You still have to close that window, that was not part of the contract, sue me :D )"};

   wc.cbSize        = sizeof(WNDCLASSEX);
   wc.style         = 0;
   wc.lpfnWndProc   = WndProc;
   wc.cbClsExtra    = 0;
   wc.cbWndExtra    = 0;
   wc.hInstance     = hInstance;
   wc.hIcon         = LoadIcon(NULL, IDI_APPLICATION);
   wc.hCursor       = LoadCursor(NULL, IDC_ARROW);
   wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
   wc.lpszMenuName  = NULL;
   wc.lpszClassName = g_szClassName;
   wc.hIconSm       = LoadIcon(NULL, IDI_APPLICATION);
   if(!RegisterClassEx(&wc))
   {
       MessageBox(NULL, "Window Registration Failed!", "Error!",MB_ICONEXCLAMATION | MB_OK);
       return 0;
   }

for(i=0;i<2;i++){

sprintf(str[i],"Window Number %d",i+1);

hwnd[i] = CreateWindow(g_szClassName,str[i],WS_OVERLAPPEDWINDOW,i*maxX/2 , 0, maxX/2-10, maxY/2-10,NULL, NULL, hInstance, NULL);

if(hwnd[i] == NULL) { MessageBox(NULL, "Window Creation Failed!", "Error!",MB_ICONEXCLAMATION | MB_OK); return 0; }

ShowWindow(hwnd[i], nCmdShow); UpdateWindow(hwnd[i]); }

for(i=0;i<6;i++){ MessageBox(NULL, messages[i], "Info",MB_APPLMODAL| MB_ICONINFORMATION | MB_OK); }

if(hwnd[0]==hwnd[1]) MessageBox(NULL, "Window 1 and 2 are equal.", "Info",MB_APPLMODAL| MB_ICONINFORMATION | MB_OK); else MessageBox(NULL, "Nope, they are not.", "Info",MB_APPLMODAL| MB_ICONINFORMATION | MB_OK);

MessageBox(NULL, messages[6], "Info",MB_APPLMODAL| MB_ICONINFORMATION | MB_OK);

ShowWindow(hwnd[0], SW_HIDE);

MessageBox(NULL, messages[7], "Info",MB_APPLMODAL| MB_ICONINFORMATION | MB_OK);

ShowWindow(hwnd[0], SW_SHOW);

MessageBox(NULL, messages[8], "Info",MB_APPLMODAL| MB_ICONINFORMATION | MB_OK);

ShowWindow(hwnd[1], SW_HIDE);

MessageBox(NULL, messages[9], "Info",MB_APPLMODAL| MB_ICONINFORMATION | MB_OK);

ShowWindow(hwnd[0], SW_MINIMIZE);

MessageBox(NULL, messages[10], "Info",MB_APPLMODAL| MB_ICONINFORMATION | MB_OK);

ShowWindow(hwnd[0], SW_MAXIMIZE);

MessageBox(NULL, messages[11], "Info",MB_APPLMODAL| MB_ICONINFORMATION | MB_OK);

ShowWindow(hwnd[0], SW_RESTORE);

while(x!=maxX/2||y!=maxY/2){ if(x<maxX/2) x++; if(y<maxY/2) y++;

MoveWindow(hwnd[0],x,y,maxX/2-10, maxY/2-10,0); sleep(10); }

MessageBox(NULL, messages[12], "Info",MB_APPLMODAL| MB_ICONINFORMATION | MB_OK);

MoveWindow(hwnd[0],0,0,maxX, maxY,0);

MessageBox(NULL, messages[13], "Info",MB_APPLMODAL| MB_ICONINFORMATION | MB_OK);

   while(GetMessage(&Msg, NULL, 0, 0) > 0)
   {
       TranslateMessage(&Msg);
       DispatchMessage(&Msg);
   }
   return Msg.wParam;

} </lang>

Gambas

<lang gambas>sWindow As New String[4] '________________________ Public Sub Form_Open()

Manipulate

End '________________________ Public Sub Manipulate() Dim siDelay As Short = 2

Me.Show Print "Show" Wait siDelay

sWindow[0] = Me.Width sWindow[1] = Me.Height sWindow[2] = Me.X sWindow[3] = Me.y

Me.Hide Print "Hidden" CompareWindow Wait siDelay

Me.Show Print "Show" CompareWindow Wait siDelay

Me.Minimized = True Print "Minimized" CompareWindow Wait siDelay

Me.Show Print "Show" CompareWindow Wait siDelay

Me.Maximized = True Print "Maximized" CompareWindow Wait siDelay

Me.Maximized = False Print "Not Maximized" CompareWindow Wait siDelay

Me.Height = 200 Me.Width = 300 Print "Resized" CompareWindow Wait siDelay

Me.x = 10 Me.Y = 10 Print "Moved" CompareWindow Wait siDelay

Me.Close

End '________________________ Public Sub CompareWindow() Dim sNewWindow As New String[4] Dim siCount As Short Dim bMatch As Boolean = True

sNewWindow[0] = Me.Width sNewWindow[1] = Me.Height sNewWindow[2] = Me.X sNewWindow[3] = Me.y

For siCount = 0 To 3

 If sWindow[siCount] <> sNewWindow[siCount] Then bMatch = False

Next

If bMatch Then

 Print "Windows identities match the original window size"

Else

 Print "Windows identities DONOT match the original window size"

End If

End</lang> Output:

Show
Hidden
Windows identities match the original window size
Show
Windows identities match the original window size
Minimized
Windows identities match the original window size
Show
Windows identities match the original window size
Maximized
Windows identities match the original window size
Not Maximized
Windows identities DONOT match the original window size
Resized
Windows identities DONOT match the original window size
Moved
Windows identities DONOT match the original window size

Go

Library: gotk3
Translation of: Nim

<lang go>package main

import (

   "github.com/gotk3/gotk3/gtk"
   "log"
   "time"

)

func check(err error, msg string) {

   if err != nil {
       log.Fatal(msg, err)
   }

}

func main() {

   gtk.Init(nil)
   window, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
   check(err, "Unable to create window:")
   window.SetResizable(true)
   window.SetTitle("Window management")
   window.SetBorderWidth(5)
   window.Connect("destroy", func() {
       gtk.MainQuit()
   })
   stackbox, err := gtk.BoxNew(gtk.ORIENTATION_VERTICAL, 10)
   check(err, "Unable to create stack box:")
   bmax, err := gtk.ButtonNewWithLabel("Maximize")
   check(err, "Unable to create maximize button:")
   bmax.Connect("clicked", func() {
       window.Maximize()
   })
   bunmax, err := gtk.ButtonNewWithLabel("Unmaximize")
   check(err, "Unable to create unmaximize button:")
   bunmax.Connect("clicked", func() {
       window.Unmaximize()
   })
   bicon, err := gtk.ButtonNewWithLabel("Iconize")
   check(err, "Unable to create iconize button:")
   bicon.Connect("clicked", func() {
       window.Iconify()
   })
   bdeicon, err := gtk.ButtonNewWithLabel("Deiconize")
   check(err, "Unable to create deiconize button:")
   bdeicon.Connect("clicked", func() {
       window.Deiconify()
   })
   bhide, err := gtk.ButtonNewWithLabel("Hide")
   check(err, "Unable to create hide button:")
   bhide.Connect("clicked", func() {
       // not working on Ubuntu 16.04 but window 'dims' after a few seconds
       window.Hide() 
       time.Sleep(10 * time.Second)
       window.Show()
   })
   bshow, err := gtk.ButtonNewWithLabel("Show")
   check(err, "Unable to create show button:")
   bshow.Connect("clicked", func() {
       window.Show()
   })
   bmove, err := gtk.ButtonNewWithLabel("Move")
   check(err, "Unable to create move button:")
   isShifted := false
   bmove.Connect("clicked", func() {
       w, h := window.GetSize()
       if isShifted {
           window.Move(w-10, h-10)
       } else {
           window.Move(w+10, h+10)
       }
       isShifted = !isShifted
   })
   bquit, err := gtk.ButtonNewWithLabel("Quit")
   check(err, "Unable to create quit button:")
   bquit.Connect("clicked", func() {
       window.Destroy()
   })
   stackbox.PackStart(bmax, true, true, 0)
   stackbox.PackStart(bunmax, true, true, 0)
   stackbox.PackStart(bicon, true, true, 0)
   stackbox.PackStart(bdeicon, true, true, 0)
   stackbox.PackStart(bhide, true, true, 0)
   stackbox.PackStart(bshow, true, true, 0)
   stackbox.PackStart(bmove, true, true, 0)
   stackbox.PackStart(bquit, true, true, 0)
   window.Add(stackbox)
   window.ShowAll()
   gtk.Main()

}</lang>

HicEst

<lang hicest>CHARACTER title="Rosetta Window_management" REAL :: w=-333, h=25, x=1, y=0.5 ! pixels < 0, relative window size 0...1, script character size > 1

 WINDOW(WINdowhandle=wh, Width=w, Height=h, X=x, Y=y, TItle=title) ! create, on return size/pos VARIABLES are set to script char
 WINDOW(WIN=wh, MINimize)    ! minimize
 WINDOW(WIN=wh, SHowNormal)  ! restore
 WINDOW(WIN=wh, X=31, Y=7+4) !<-- move upper left here (col 31, row 7 + ~4 rows for title, menus, toolbar. Script window in upper left screen)
 WINDOW(WIN=wh, MAXimize)    ! maximize (hides the script window)
 WINDOW(Kill=wh)             ! close

END</lang>

Icon and Unicon

The demo program opens three windows, one with a running commentary on the action. <lang Icon>link graphics

procedure main()

  Delay := 3000
  W1 := open("Window 1","g","resize=on","size=400,400","pos=100,100","bg=black","fg=red") |
        stop("Unable to open window 1")
  W2 := open("Window 2","g","resize=on","size=400,400","pos=450,450","bg=blue","fg=yellow") |
        stop("Unable to open window 2")
  W3 := open("Window 3","g","resize=on","size=400,400","pos=600,150","bg=orange","fg=black") |
        stop("Unable to open window 3")
  WWrite(W3,"Opened three windows")
  
  WWrite(W3,"Window 1&2 with rectangles")
  every Wx := W1 | W2 | W3 do
     if Wx ~=== W3 then 
        FillRectangle(Wx,50,50,100,100)     
  
  delay(Delay) 
  WWrite(W3,"Window 1 rasied")   
  Raise(W1)

  delay(Delay)
  WWrite(W3,"Window 2 hidden")   
  WAttrib(W2,"canvas=hidden")
  
  delay(Delay) 
  WWrite(W3,"Window 2 maximized")    
  WAttrib(W2,"canvas=maximal")
  Raise(W3)
  delay(Delay)   
  WWrite(W3,"Window 2 restored & resized") 
  WAttrib(W2,"canvas=normal")
  WAttrib(W2,"size=600,600")
  
  delay(Delay)
  WWrite(W3,"Window 2 moved")    
  WAttrib(W2,"posx=700","posy=300")
  
  delay(Delay) 
  WWrite(W3,"Window 2 minimized")     
  WAttrib(W2,"canvas=iconic")  
  
  delay(Delay) 
  WWrite(W3,"Window 2 restored")
  WAttrib(W2,"canvas=normal")  # restore as maximal, possible bug
  
  delay(Delay)
  WWrite(W3,"Enter Q or q here to quit") 
  WDone(W3)         

end</lang>

graphics.icn provides graphics

Java

Java cannot (easily) manipulate windows created by other programs. This code manipulates windows that it has created, but any window created in the same JVM can be controlled similarly. This example uses Swing - for AWT or SWT go figure. <lang Java>import java.awt.BorderLayout; import java.awt.EventQueue; import java.awt.Frame; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.lang.reflect.InvocationTargetException; import javax.swing.AbstractAction; import javax.swing.JButton; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.border.EmptyBorder;

public class WindowController extends JFrame {

  // Create UI on correct thread
  public static void main( final String[] args ) {
     EventQueue.invokeLater( () -> new WindowController() );
  }
  private JComboBox<ControlledWindow> list;
  // Button class to call the right method
  private class ControlButton extends JButton {
     private ControlButton( final String name ) {
        super(
           new AbstractAction( name ) {
              public void actionPerformed( final ActionEvent e ) {
                 try {
                    WindowController.class.getMethod( "do" + name )
                       .invoke ( WindowController.this );
                 } catch ( final Exception x ) { // poor practice
                    x.printStackTrace();        // also poor practice
                 }
              }
           }
        );
     }
  }
  // UI for controlling windows
  public WindowController() {
     super( "Controller" );
     final JPanel main = new JPanel();
     final JPanel controls = new JPanel();
     setLocationByPlatform( true );
     setResizable( false );
     setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
     setLayout( new BorderLayout( 3, 3 ) );
     getRootPane().setBorder( new EmptyBorder( 3, 3, 3, 3 ) );
     add( new JLabel( "Add windows and control them." ), BorderLayout.NORTH );
     main.add( list = new JComboBox<>() );
     add( main, BorderLayout.CENTER );
     controls.setLayout( new GridLayout( 0, 1, 3, 3 ) );
     controls.add( new ControlButton( "Add"      ) );
     controls.add( new ControlButton( "Hide"     ) );
     controls.add( new ControlButton( "Show"     ) );
     controls.add( new ControlButton( "Close"    ) );
     controls.add( new ControlButton( "Maximise" ) );
     controls.add( new ControlButton( "Minimise" ) );
     controls.add( new ControlButton( "Move"     ) );
     controls.add( new ControlButton( "Resize"   ) );
     add( controls, BorderLayout.EAST );
     pack();
     setVisible( true );
  }
  // These are the windows we're controlling, but any JFrame would do
  private static class ControlledWindow extends JFrame {
     private int num;
     public ControlledWindow( final int num ) {
        super( Integer.toString( num ) );
        this.num = num;
        setLocationByPlatform( true );
        getRootPane().setBorder( new EmptyBorder( 3, 3, 3, 3 ) );
        setDefaultCloseOperation( JFrame.DISPOSE_ON_CLOSE );
        add( new JLabel( "I am window " + num + ". Use the controller to control me." ) );
        pack();
        setVisible( true );
     }
     public String toString() {
        return "Window " + num;
     }
  }
  // Here comes the useful bit - window control code
  // Everything else was just to allow us to do this!
  public void doAdd() {
     list.addItem( new ControlledWindow( list.getItemCount () + 1 ) );
     pack();
  }
  public void doHide() {
     final JFrame window = getWindow();
     if ( null == window ) {
        return;
     }
     window.setVisible( false );
  }
  public void doShow() {
     final JFrame window = getWindow();
     if ( null == window ) {
        return;
     }
     window.setVisible( true );
  }
  public void doClose() {
     final JFrame window = getWindow();
     if ( null == window ) {
        return;
     }
     window.dispose();
  }
  public void doMinimise() {
     final JFrame window = getWindow();
     if ( null == window ) {
        return;
     }
     window.setState( Frame.ICONIFIED );
  }
  public void doMaximise() {
     final JFrame window = getWindow();
     if ( null == window ) {
        return;
     }
     window.setExtendedState( Frame.MAXIMIZED_BOTH );
  }
  public void doMove() {
     final JFrame window = getWindow();
     if ( null == window ) {
        return;
     }
     final int hPos = getInt( "Horizontal position?" );
     if ( -1 == hPos ) {
        return;
     }
     final int vPos = getInt( "Vertical position?" );
     if ( -1 == vPos ) {
        return;
     }
     window.setLocation ( hPos, vPos );
  }
  public void doResize() {
     final JFrame window = getWindow();
     if ( null == window ) {
        return;
     }
     final int width = getInt( "Width?" );
     if ( -1 == width ) {
        return;
     }
     final int height = getInt( "Height?" );
     if ( -1 == height ) {
        return;
     }
     window.setBounds ( window.getX(), window.getY(), width, height );
  }
  private JFrame getWindow() {
     final JFrame window = ( JFrame ) list.getSelectedItem();
     if ( null == window ) {
        JOptionPane.showMessageDialog( this, "Add a window first" );
     }
     return window;
  }
  private int getInt(final String prompt) {
     final String s = JOptionPane.showInputDialog( prompt );
     if ( null == s ) {
        return -1;
     }
     try {
        return Integer.parseInt( s );
     } catch ( final NumberFormatException x ) {
        JOptionPane.showMessageDialog( this, "Not a number" );
        return -1;
     }
  }

} </lang>

Julia

Uses the Gtk windowing package, so the package can manage Gtk's windows. <lang julia>using Gtk

function controlwindow(win, lab)

   sleep(4)
   set_gtk_property!(lab, :label, "Hiding...")
   sleep(1)
   println("Hiding widow")
   set_gtk_property!(win, :visible, false)
   sleep(5)
   set_gtk_property!(lab, :label, "Showing...")
   println("Showing window")
   set_gtk_property!(win, :visible, true)
   sleep(5)
   set_gtk_property!(lab, :label, "Resizing...")
   println("Resizing window")
   resize!(win, 300, 300)
   sleep(4)
   set_gtk_property!(lab, :label, "Maximizing...")
   println("Maximizing window")
   sleep(1)
   maximize(win)
   set_gtk_property!(lab, :label, "Closing...")
   sleep(5)
   println("Closing window")
   destroy(win)
   sleep(2)
   exit(0)

end

function runwindow()

   win = GtkWindow("Window Control Test", 500, 30) |> (GtkFrame() |> (vbox = GtkBox(:v)))
   lab = GtkLabel("Window under external control")
   push!(vbox, lab)
   @async(controlwindow(win, lab))
   cond = Condition()
   endit(w) = notify(cond)
   signal_connect(endit, win, :destroy)
   showall(win)
   wait(cond)

end

runwindow() </lang>

Mathematica

Mathematica can only easily access and control windows created by itself.

<lang Mathematica>nb=NotebookCreate[]; (*Create a window and store in a variable*) nb===nb2 (*test for equality with another window object*) SetOptions[nb,Visible->False](*Hide*) SetOptions[nb,Visible->True](*Show*) NotebookClose[nb] (*Close*) SetOptions[nb,WindowMargins->{{x,Automatic},{y,Automatic}}](*Move to x,y screen position*) SetOptions[nb,WindowSize->{100,100}](*Resize*)</lang>

Nim

Library: gintro

<lang Nim>import os import gintro/[glib, gobject, gtk, gio] from gintro/gdk import processAllUpdates

type MyWindow = ref object of ApplicationWindow

 isShifted: bool
  1. ---------------------------------------------------------------------------------------------------

proc wMaximize(button: Button; window: MyWindow) =

 window.maximize()

proc wUnmaximize(button: Button; window: MyWindow) =

 window.unmaximize()

proc wIconify(button: Button; window: MyWindow) =

 window.iconify()

proc wDeiconify(button: Button; window: MyWindow) =

 window.deiconify()

proc wHide(button: Button; window: MyWindow) =

 window.hide()
 processAllUpdates()
 os.sleep(2000)
 window.show()

proc wShow(button: Button; window: MyWindow) =

 window.show()

proc wMove(button: Button; window: MyWindow) =

 var x, y: int
 window.getPosition(x, y)
 if window.isShifted:
   window.move(x - 10, y - 10)
 else:
   window.move(x + 10, y + 10)
 window.isShifted = not window.isShifted

proc wQuit(button: Button; window: MyWindow) =

 window.destroy()
  1. ---------------------------------------------------------------------------------------------------

proc activate(app: Application) =

 ## Activate the application.
 let window = newApplicationWindow(MyWindow, app)
 window.setTitle("Window management")
 let stackBox = newBox(Orientation.vertical, 10)
 stackBox.setHomogeneous(true)
 let
   bMax = newButton("maximize")
   bUnmax = newButton("unmaximize")
   bIcon = newButton("iconize")
   bDeicon = newButton("deiconize")
   bHide = newButton("hide")
   bShow = newButton("show")
   bMove = newButton("move")
   bQuit = newButton("Quit")
 for button in [bMax, bUnmax, bIcon, bDeicon, bHide, bShow, bMove, bQuit]:
   stackBox.add button
 window.setBorderWidth(5)
 window.add(stackBox)
 discard bMax.connect("clicked", wMaximize, window)
 discard bUnmax.connect("clicked", wUnmaximize, window)
 discard bIcon.connect("clicked", wIconify, window)
 discard bDeicon.connect("clicked", wDeiconify, window)
 discard bHide.connect("clicked", wHide, window)
 discard bShow.connect("clicked", wShow, window)
 discard bMove.connect("clicked", wMove, window)
 discard bQuit.connect("clicked", wQuit, window)
 window.showAll()
  1. ———————————————————————————————————————————————————————————————————————————————————————————————————

let app = newApplication(Application, "Rosetta.Window.Management") discard app.connect("activate", activate) discard app.run()</lang>


Library: Gtk2

<lang nim>import os import gdk2, glib2, gtk2

proc thisDestroy(widget: PWidget; data: Pgpointer) {.cdecl.} =

 main_quit()

proc thisMax(widget: PWidget; data: Pgpointer) {.cdecl.} =

 widget.get_parent_window().maximize()

proc thisUnmax(widget: PWidget; data: Pgpointer) {.cdecl.} =

 widget.get_parent_window().unmaximize()

proc thisIcon(widget: PWidget; data: Pgpointer) {.cdecl.} =

 widget.get_parent_window().iconify()

proc thisDeicon(widget: PWidget; data: Pgpointer) {.cdecl.} =

 widget.get_parent_window().deiconify()

proc thisHide(widget: PWidget; data: Pgpointer) {.cdecl.} =

 widget.get_parent_window().hide()
 sleep(2000)
 widget.get_parent_window().show()

proc thisShow(widget: PWidget; data: Pgpointer) {.cdecl.} =

 widget.get_parent_window().show()

var isShifted = false

proc thisMove(widget: PWidget; data: Pgpointer) {.cdecl.} =

 var w, h: gint
 widget.get_parent_window().get_size(addr(w), addr(h))
 if isshifted:
    widget.get_parent_window().move(w - 10, h - 10)
 else:
    widget.get_parent_window().move(w + 10, h + 10)
 isShifted = not isShifted


nim_init() let window = window_new(gtk2.WINDOW_TOPLEVEL) discard window.allow_grow() window.set_title("Window management") let

 stackbox = vbox_new(true, 10)
 bMax = button_new("maximize")
 bUnmax = button_new("unmaximize")
 bIcon = button_new("iconize")
 bDeicon = button_new("deiconize")
 bHide = button_new("hide")
 bShow = button_new("show")
 bMove = button_new("move")
 bQuit = button_new("Quit")

stackbox.pack_start(bMax, true, true, 0) stackbox.pack_start(bUnmax, true, true, 0) stackbox.pack_start(bIcon, true, true, 0) stackbox.pack_start(bDeicon, true, true, 0) stackbox.pack_start(bHide, true, true, 0) stackbox.pack_start(bShow, true, true, 0) stackbox.pack_start(bMove, true, true, 0) stackbox.pack_start(bQuit, true, true, 0) window.set_border_width(5) window.add(stackbox)

discard window.signal_connect("destroy", SIGNAL_FUNC(thisDestroy), nil) discard bIcon.signal_connect("clicked", SIGNAL_FUNC(thisIcon), nil) discard bDeicon.signal_connect("clicked", SIGNAL_FUNC(thisDeicon), nil) discard bMax.signal_connect("clicked", SIGNAL_FUNC(thisMax), nil) discard bUnmax.signal_connect("clicked", SIGNAL_FUNC(thisUnmax), nil) discard bHide.signal_connect("clicked", SIGNAL_FUNC(thisHide), nil) discard bShow.signal_connect("clicked", SIGNAL_FUNC(thisShow), nil) discard bMove.signal_connect("clicked", SIGNAL_FUNC(thismove), nil) discard bQuit.signal_connect("clicked", SIGNAL_FUNC(thisDestroy), nil) window.show_all() main()</lang>

Library: IUP

<lang nim>import iup

  1. assumes you have the iup .dll or .so installed

proc toCB(fp: proc): ICallback =

  return cast[ICallback](fp)

discard iup.open(nil,nil)

var btnRestore = button("restore","") var btnFull = button("Full screen","") var btnMin = button("minimize","") var btnMax = button("maximize","") var btnHide = button("Transparent","")

  1. var btnHide = button("Hide (close)","")

var btnShow = button("Show","")

var hbox = Hbox(btnRestore, btnFull, btnMax, btnMin, btnShow, btnHide, nil) setAttribute(hbox,"MARGIN", "10x10") setAttribute(hbox,"PADDING", "5x5")

var dlg = Dialog(hbox)

  1. SetAttribute(dlg, "SIZE", "100x50")

proc doFull(ih:PIhandle): cint {.cdecl.} =

   setAttribute(dlg,"FULLSCREEN","YES")
   return IUP_DEFAULT

proc doMax(ih:PIhandle): cint {.cdecl.} =

   #setAttribute(dlg,"FULLSCREEN","YES")
   setAttribute(dlg,"PLACEMENT","MAXIMIZED")
   # this is a work-around to get the dialog minimised (on win platform)
   setAttribute(dlg,"VISIBLE","YES")
   return IUP_DEFAULT

proc doMin(ih:PIhandle): cint {.cdecl.} =

   setAttribute(dlg,"PLACEMENT","MINIMIZED")
   # this is a work-around to get the dialog minimised (on win platform)
   setAttribute(dlg,"VISIBLE","YES")
   return IUP_DEFAULT

proc doRestore(ih:PIhandle): cint {.cdecl.} =

   setAttribute(dlg,"OPACITY","255")
   setAttribute(dlg,"FULLSCREEN","NO")
   setAttribute(dlg,"PLACEMENT","NORMAL")
   setAttribute(dlg,"VISIBLE","YES")
   return IUP_DEFAULT

proc doHide(ih:PIhandle): cint {.cdecl.} =

   #setAttribute(dlg,"VISIBLE","NO")
   setAttribute(dlg,"OPACITY","60")
   return IUP_DEFAULT

proc doShow(ih:PIhandle): cint {.cdecl.} =

   setAttribute(dlg,"OPACITY","255")
   setAttribute(dlg,"VISIBLE","YES")
   return IUP_DEFAULT
   

discard setCallback(btnRestore,"ACTION", toCB(doRestore)) discard setCallback(btnFull,"ACTION", toCB(doFull)) discard setCallback(btnMax,"ACTION", toCB(doMax)) discard setCallback(btnMin,"ACTION", toCB(doMin)) discard setCallback(btnShow,"ACTION", toCB(doShow)) discard setCallback(btnHide,"ACTION", toCB(doHide))

discard dlg.show() discard mainloop() iup.Close()</lang>

Oz

We use QTk, Oz' default GUI toolkit. QTk takes a declarative description of the GUI and from this creates objects which represent the GUI parts. So windows are represented by objects and thus have an identity.

We create two windows with a simple GUI. The user can use each window to send messages to the window or its neighboring window. (Sending messages is the same as 'calling methods' in Oz.)

We also wrap the Window objects in a procedure in order to extend their functionality. This is interesting because it shows how to extend an object's interface even when we don't have control over object creation.

<lang oz>declare

 [QTk] = {Module.link ['x-oz://system/wp/QTk.ozf']}
 %% The messages that can be sent to the windows.
 WindowActions =
 [hide show close
  iconify deiconify
  maximize restore
  set(minsize:minsize(width:400 height:400))
  set(minsize:minsize(width:200 height:200))
  set(geometry:geometry(x:0 y:0))
  set(geometry:geometry(x:500 y:500))
 ]
 %% Two windows, still uninitialized.
 Windows = windows(window1:_
                   window2:_)
 fun {CreateWindow}
    Message = {NewCell WindowActions.1}
    ReceiverName = {NewCell {Arity Windows}.1}
    fun {ButtonText}
       "Send"#"  "#{ValueToString @Message}#"  to  "#@ReceiverName
    end
    Button
    Desc =
    td(title:"Window Management"
       lr(listbox(init:{Arity Windows}
                  glue:nswe
                  tdscrollbar:true
                  actionh:proc {$ W}
                             ReceiverName := {GetSelected W}
                             {Button set(text:{ButtonText})}
                          end
                 )
          listbox(init:{Map WindowActions ValueToString}
                  glue:nswe
                  tdscrollbar:true
                  actionh:proc {$ A}
                             Message := {GetSelected A}
                             {Button set(text:{ButtonText})}
                          end
                 )
          glue:nswe
         )
       button(text:{ButtonText}
              glue:we
              handle:Button
              action:proc {$}
                        {Windows.@ReceiverName @Message}
                     end
             )
      )
    Window = {Extend {QTk.build Desc}}
 in
    {Window show}
    Window
 end
 %% Adds two methods to a toplevel instance.
 %% For maximize and restore we have to interact directly with Tk
 %% because that functionality is not part of the QTk library.
 fun {Extend Toplevel}
    proc {$ A}
       case A of maximize then
          {Tk.send wm(state Toplevel zoomed)}
       [] restore then
          {Tk.send wm(state Toplevel normal)}
       else
          {Toplevel A}
       end
    end
 end
 %% Returns the current entry of a listbox
 %% as an Oz value.
 fun {GetSelected LB}
    Entries = {LB get($)}
    Index = {LB get(firstselection:$)}
 in
    {Compiler.virtualStringToValue {Nth Entries Index}}
 end
 fun {ValueToString V}
    {Value.toVirtualString V 100 100}
 end

in

 {Record.forAll Windows CreateWindow}</lang>

Perl

Library: Perl/Tk

This is a translation of the Tcl solution for this task.

The preferred way of using Tk with perl is through the (relatively modern) Tkx module, not the (quite old) Tk module (also known as perl/tk), which my code uses.

I wrote the code using the Tk module, as that's what I had on my computer, and I was too lazy to install Tkx. Translating from perl/tk to Tkx should be fairly trivial.

<lang Perl>#!perl use strict; use warnings; use Tk;

my $mw; my $win; my $lab;

  1. How to open a window.

sub openWin { if( $win ) { $win->deiconify; $win->wm('state', 'normal'); } else { eval { $win->destroy } if $win; $win = $mw->Toplevel; $win->Label(-text => "This is the window being manipulated") ->pack(-fill => 'both', -expand => 1); $lab->configure(-text => "The window object is:\n$win"); } }

  1. How to close a window

sub closeWin { return unless $win; $win->destroy; $lab->configure(-text => ); undef $win; }

  1. How to minimize a window

sub minimizeWin { return unless $win; $win->iconify; }

  1. How to maximize a window

sub maximizeWin { return unless $win; $win->wm('state', 'zoomed'); eval { $win->wmAttribute(-zoomed => 1) }; # Hack for X11 }

  1. How to move a window

sub moveWin { return unless $win; my ($x, $y) = $win->geometry() =~ /\+(\d+)\+(\d+)\z/ or die; $_ += 10 for $x, $y; $win->geometry("+$x+$y"); }

  1. How to resize a window

sub resizeWin { return unless $win; my ($w, $h) = $win->geometry() =~ /^(\d+)x(\d+)/ or die; $_ += 10 for $w, $h; $win->geometry($w . "x" . $h); }

$mw = MainWindow->new; for my $label0 ($mw->Label(-text => 'Window handle:')) { $lab = $mw->Label(-text => ); $label0->grid($lab); }

my @binit = ('Open/Restore' => \&openWin, Close => \&closeWin, Minimize => \&minimizeWin, Maximize => \&maximizeWin, Move => \&moveWin, Resize => \&resizeWin);

while( my ($text, $callback) = splice @binit, 0, 2 ) { $mw->Button(-text => $text, -command => $callback)->grid('-'); }

MainLoop();

__END__ </lang>

In the Tcl code I translated from, the second label of the main window had a textvariable attribute. For some reason, this didn't work correctly for me, either due to a bug in Tk.pm, or some other reason. Because of that, I kept around a handle to that second label ($lab), and called configure on it when I needed it's text to change.

Doubtless some more modern Tk binding (such as Tkx, or perhaps Tcl::Tk) would handle that better.

Phix

Translation of: Nim
Library: Phix/basics
Library: Phix/pGUI
-- demo\rosetta\Window_management.exw
include pGUI.e
 
Ihandle dlg
 
function doFull(Ihandle /*ih*/)
    IupSetAttribute(dlg,"FULLSCREEN","YES")
    return IUP_DEFAULT
end function
 
function doMax(Ihandle /*ih*/)
    IupSetAttribute(dlg,"PLACEMENT","MAXIMIZED")
    -- this is a work-around to get the dialog minimised (on win platform)
    IupSetAttribute(dlg,"VISIBLE","YES")
    return IUP_DEFAULT
end function
 
function doMin(Ihandle /*ih*/)
    IupSetAttribute(dlg,"PLACEMENT","MINIMIZED")
    -- this is a work-around to get the dialog minimised (on win platform)
    IupSetAttribute(dlg,"VISIBLE","YES")
    return IUP_DEFAULT
end function
 
function doRestore(Ihandle /*ih*/)
    IupSetAttribute(dlg,"OPACITY","255")
    IupSetAttribute(dlg,"FULLSCREEN","NO")
    IupSetAttribute(dlg,"PLACEMENT","NORMAL")
    IupSetAttribute(dlg,"VISIBLE","YES")
    return IUP_DEFAULT
end function
 
function doDim(Ihandle /*ih*/)
    IupSetAttribute(dlg,"OPACITY","60")
    return IUP_DEFAULT
end function
 
function doShow(Ihandle /*ih*/)
    IupSetAttribute(dlg,"OPACITY","255")
    return IUP_DEFAULT
end function
 
function doMove(Ihandle /*ih*/)
    integer {x,y} = IupGetIntInt(dlg,"SCREENPOSITION")
    integer shift = iff(IupGetInt(NULL,"SHIFTKEY")?-10,+10)
    IupShowXY(dlg,x+shift,y+shift)
    return IUP_DEFAULT
end function
 
procedure main()
    IupOpen()
 
    Ihandle hbox = IupHbox({IupButton("restore",    Icallback("doRestore")),
                            IupButton("full screen",Icallback("doFull")),
                            IupButton("maximize",   Icallback("doMax")),
                            IupButton("minimize",   Icallback("doMin")),
                            IupButton("dim",        Icallback("doDim")),
                            IupButton("show",       Icallback("doShow")),
                            IupButton("move",       Icallback("doMove"))})
    IupSetAttribute(hbox,"MARGIN", "10x10")
    IupSetAttribute(hbox,"PADDING", "5x5")
 
    dlg = IupDialog(hbox)
    IupSetAttribute(dlg,"OPACITY","255")
 
    IupShowXY(dlg,IUP_CENTER,IUP_CENTER)
    if platform()!=JS then
        IupMainLoop()
        IupClose()
    end if
end procedure
main()

PicoLisp

The following works on ErsatzLisp, the Java version of PicoLisp. <lang PicoLisp>$ ersatz/pil +

(setq
  JFrame         "javax.swing.JFrame"
  MAXIMIZED_BOTH (java (public JFrame 'MAXIMIZED_BOTH))
  ICONIFIED      (java (public JFrame 'ICONIFIED))
  Win            (java JFrame T "Window") )

-> $JFrame

  1. Compare for equality
(== Win Win)

-> T

  1. Set window visible

(java Win 'setLocation 100 100) (java Win 'setSize 400 300) (java Win 'setVisible T)

  1. Hide window

(java Win 'hide)

  1. Show again

(java Win 'setVisible T)

  1. Move window

(java Win 'setLocation 200 200)

  1. Iconify window

(java Win 'setExtendedState

  (| (java (java Win 'getExtendedState)) ICONIFIED) )
  1. De-conify window

(java Win 'setExtendedState

  (& (java (java Win 'getExtendedState)) (x| (hex "FFFFFFFF") ICONIFIED)) )
  1. Maximize window

(java Win 'setExtendedState

  (| (java (java Win 'getExtendedState)) MAXIMIZED_BOTH) )
  1. Close window

(java Win 'dispose)</lang>

PureBasic

<lang PureBasic>;- Create a linked list to store created windows. NewList Windows() Define i, j, dh, dw, flags, err$, x, y

- Used sub-procedure to simplify the error handling

Procedure HandleError(Result, Text.s,ErrorLine=0,ExitCode=0)

 If Not Result
   MessageRequester("Error",Text)
   End ExitCode
 EndIf
 ProcedureReturn Result

EndProcedure

- Window handling procedures

Procedure Minimize(window)

 SetWindowState(window,#PB_Window_Minimize)

EndProcedure

Procedure Normalize(window)

 SetWindowState(window,#PB_Window_Normal)

EndProcedure

- Get enviroment data

HandleError(ExamineDesktops(), "Failed to examine you Desktop.") dh=HandleError(DesktopHeight(0),"Could not retrieve DesktopHight")/3 dw=HandleError(DesktopWidth(0), "Could not retrieve DesktopWidth")/3

- Now, creating 9 windows

flags=#PB_Window_SystemMenu err$="Failed to open Window" For i=0 To 8

 j=HandleError(OpenWindow(#PB_Any,i*10,i*10+30,10,10,Str(i),flags),err$)
 SmartWindowRefresh(j, 1) 
 AddElement(Windows())
 Windows()=j

Next i Delay(1000)

- Call a sub-routine for each Window stored in the list.

ForEach Windows()

 Minimize(Windows())

Next Delay(1000)

- and again

ForEach Windows()

 Normalize(Windows())

Next Delay(1000)

- Spread them evenly

ForEach Windows()

 ResizeWindow(Windows(),x*dw,y*dh,dw-15,dh-35)
 x+1
 If x>2
   x=0: y+1
 EndIf

Next Delay(2000)

End</lang>

Python

Works with: Python version 3.x
Library: tkinter

Using the tkinter GUI: <lang Python> from tkinter import * import tkinter.messagebox

def maximise(): """get screenwidth and screenheight, and resize window to that size. Also move to 0,0""" root.geometry("{}x{}+{}+{}".format(root.winfo_screenwidth(), root.winfo_screenheight(), 0, 0))

def minimise(): """Iconify window to the taskbar. When reopened, the window is unfortunately restored to its original state, NOT its most recent state.""" root.iconify()

def delete(): """create a modal dialog. If answer is "OK", quit the program""" if tkinter.messagebox.askokcancel("OK/Cancel","Are you sure?"): root.quit()

root = Tk()

mx=Button(root,text="maximise",command=maximise) mx.grid() mx.bind(maximise)

mn=Button(root,text="minimise",command=minimise) mn.grid() mn.bind(minimise)

  1. catch exit events, including "X" on title bar.

root.protocol("WM_DELETE_WINDOW",delete)

mainloop() </lang>

Racket

<lang racket>

  1. lang racket/gui

(define (say . xs) (printf ">>> ~a\n" (apply ~a xs)) (flush-output))

(define frame (new frame% [label "Demo"] [width 400] [height 400])) (say "frame = " frame) ; plain value

(say 'Show) (send frame show #t) (sleep 1) (say 'Hide) (send frame show #f) (sleep 1) (say 'Show) (send frame show #t) (sleep 1) (say 'Minimize) (send frame iconize #t) (sleep 1) (say 'Restore) (send frame iconize #f) (sleep 1) (say 'Maximize) (send frame maximize #t) (sleep 1) (say 'Restore) (send frame maximize #f) (sleep 1) (say 'Move) (send frame move 100 100) (sleep 1) (say 'Resize) (send frame resize 100 100) (sleep 1) (say 'Close) (send frame show #f) (sleep 1) ; that's how we close a window </lang>

Raku

(formerly Perl 6)

Works with: Rakudo version 2018.12

This are generic window handling routines. They work for any window managed by the X11 display server, not just windows created by the program.

<lang perl6>use X11::libxdo;

my $xdo = Xdo.new;

say 'Visible windows:'; printf "Class: %-21s ID#: %10d pid: %5d Name: %s\n", $_<class ID pid name>

   for $xdo.get-windows.sort(+*.key)».value;

sleep 2;

my $id = $xdo.get-active-window;

my ($w, $h ) = $xdo.get-window-size( $id ); my ($wx, $wy) = $xdo.get-window-location( $id ); my ($dw, $dh) = $xdo.get-desktop-dimensions( 0 );

$xdo.move-window( $id, 150, 150 );

$xdo.set-window-size( $id, 350, 350, 0 );

sleep .25;

for flat 1 .. $dw - 350, $dw - 350, {$_ - 1} … 1 -> $mx { #

   my $my = (($mx / $dw * τ).sin * 500).abs.Int;
   $xdo.move-window( $id, $mx, $my );
   $xdo.activate-window($id);

}

sleep .25;

$xdo.move-window( $id, 150, 150 );

my $dx = $dw - 300; my $dy = $dh - 300;

$xdo.set-window-size( $id, $dx, $dy, 0 );

sleep .25;

my $s = -1;

loop {

   $dx += $s * ($dw / 200).ceiling;
   $dy += $s * ($dh / 200).ceiling;
   $xdo.set-window-size( $id, $dx, $dy, 0 );
   $xdo.activate-window($id);
   sleep .005;
   $s *= -1 if $dy < 200;
   last if $dx >= $dw;

}

sleep .25;

$xdo.set-window-size( $id, $w, $h, 0 ); $xdo.move-window( $id, $wx, $wy ); $xdo.activate-window($id);

sleep .25;

$xdo.minimize($id); $xdo.activate-window($id); sleep 1; $xdo.raise-window($id); sleep .25; </lang>

Ring

<lang ring>

Load "guilib.ring"

/*

+--------------------------------------------------------------------------
+        Program Name : ScreenDrawOnReSize.ring
+        Date         : 2016.06.16
+        Author       : Bert Mariani
+        Purpose      : Re-Draw Chart after ReSize or move
+--------------------------------------------------------------------------
  • /


      1. -------------------------------
      2. DRAW CHART size 1000 x 1000
      1. ------------------------------
      1. Window Size
   WinLeft   = 80                  ### 80    Window position on screen
   WinTop    = 80                  ### 80    Window position on screen
   WinWidth  = 1000                ### 1000  Window Size - Horizontal-X WinWidth
   WinHeight = 750                 ### 750   Window Size - Vertical-Y WinHeight
   WinRight  = WinLeft + WinWidth  ### 1080
   WinBottom = WinTop  + WinHeight ### 830
            
      1. Label Box Size
   BoxLeft   = 40                  ###  Start corner   Label1 Box Start Position inside WIN1
   BoxTop    = 40                  ###  Start corner 
   BoxWidth  = WinWidth  -80       ###  End   corner   Label1 Box Size
   BoxHeight = WinHeight -80       ###  End   corner  
      1. ----------------------------


New qapp {

       win1 = new qwidget() {
       
               ### Position and Size of WINDOW on the Screen
               setwindowtitle("DrawChart using QPainter")
               setgeometry( WinLeft, WinTop, WinWidth, WinHeight)
               
               win1{ setwindowtitle("Initial Window Position: " +" L " + WinLeft +" T " + WinTop +" Width" + width() +" Height " +  height() ) }
               ### ReSizeEvent ... Call WhereAreWe function
               myfilter = new qallevents(win1)
               myfilter.setResizeEvent("WhereAreWe()")
               installeventfilter(myfilter)
               
               ### Draw within this BOX
               label1 = new qlabel(win1) {
                       setgeometry(BoxLeft, BoxTop, BoxWidth, BoxHeight)
                       settext("We are Here")
               }


               ### Button Position and Size ... Call DRAW function
               new qpushbutton(win1) {
                       setgeometry( 30, 30, 80, 20)
                       settext("Draw")
                       setclickevent("Draw()")
               }
               ###---------------
               show()
       }
       
   exec()

}


      1. -----------------
      2. FUNCTION Draw
      3. -----------------

Func WhereAreWe

       Rec = win1.framegeometry()
   
       WinWidth  = win1.width()            ### 1000 Current Values 
       WinHeight = win1.height()           ### 750 
       
       WinLeft   = Rec.left() +8           ### <<< QT FIX because of Win Title
       WinTop    = Rec.top()  +30          ### <<< QT FIX because of Win Title 
       WinRight  = Rec.right()
       WinBottom = Rec.bottom()
       BoxWidth  = WinWidth  -80           ### 950
       BoxHeight = WinHeight -80           ### 700
       win1{ setwindowtitle("Window ReSize: Win " +  WinWidth + "x" + WinHeight + " --- Box " + BoxWidth  + "x" + BoxHeight  + 
                             " --- LT " +  WinLeft + "-"   + WinTop  + " --- RB " + WinRight + "-" + WinBottom      ) }
       
       See "We Are Here - setResizeEvent - " 
       See " Win "  + WinWidth  + "x" + WinHeight + " --- Box  "  + BoxWidth + "x" + BoxHeight  
       See " --- LT " + Winleft   + "-"   + WinTop    + " --- RB " + WinRight + "-"   + WinBottom +nl
       
         win1.setgeometry( WinLeft, WinTop, WinWidth, WinHeight )
       label1.setgeometry( BoxLeft, BoxTop, BoxWidth, BoxHeight )
       
   

return

Func Draw

       win1{ setwindowtitle("Draw Position: Win " +  WinWidth + "x" + WinHeight + " --- Box " + BoxWidth  + "x" + BoxHeight  + 
                             " --- LT " +  WinLeft + "-"   + WinTop  + " --- RB " + WinRight + "-" + WinBottom      ) }
                             
       See "Draw Position: " +  WinWidth + "x" + WinHeight + " --- Box " + BoxWidth  + "x" + BoxHeight  + 
                             " --- LT " +  WinLeft + "-"   + WinTop  + " --- RB " + WinRight + "-" + WinBottom  + nl
                             
 
 #     ##-----------------------------
       ### PEN Colors
       
       p1 = new qpicture()
           colorBlue = new qcolor() { setrgb(0,    0,255,255) }
           penBlue   = new qpen() { setcolor(colorBlue)  setwidth(1) }


       ###-----------------------
       ### PAINT the Chart
       new qpainter() {
               begin(p1)
               setpen(penBlue)
               ###---------------------
               ### Draw Line Chart
               drawline(        1 ,         1 , BoxWidth ,         1 )     ### WinTop line horizonal
               drawline(        1 ,         1 ,        1 , BoxHeight )     ### WinLeft Line vetical
               
               drawline(        1 , BoxHeight , BoxWidth , BoxHeight )     ### Bottom Line horizontal
               drawline( BoxWidth ,         1 , BoxWidth , BoxHeight )     ### WinRight Line vertical
               
               drawline( BoxWidth / 2 ,             1 , BoxWidth / 2 ,   BoxHeight     )    ### Central vertical   
               drawline(            1 , BoxHeight / 2 , BoxWidth     ,   BoxHeight / 2 )    ### Central horizontal


               ###--------------------------------------------------


               endpaint()
       }
       
       
       label1 { setpicture(p1) show() }
       

return

      1. --------------------------------------------

</lang>

Tcl

Library: Tk

<lang tcl>package require Tk

  1. How to open a window

proc openWin {} {

   global win
   if {[info exists win] && [winfo exists $win]} {
       # Already existing; just reset
       wm deiconify $win
       wm state $win normal
       return
   }
   catch {destroy $win} ;# Squelch the old one
   set win [toplevel .t]
   pack [label $win.label -text "This is the window being manipulated"] \
       -fill both -expand 1

}

  1. How to close a window

proc closeWin {} {

   global win
   if {[info exists win] && [winfo exists $win]} {
       destroy $win
   }

}

  1. How to minimize a window

proc minimizeWin {} {

   global win
   if {[info exists win] && [winfo exists $win]} {
       wm state $win iconic
   }

}

  1. How to maximize a window

proc maximizeWin {} {

   global win
   if {[info exists win] && [winfo exists $win]} {
       wm state $win zoomed
       catch {wm attribute $win -zoomed 1} ;# Hack for X11
   }

}

  1. How to move a window

proc moveWin {} {

   global win
   if {[info exists win] && [winfo exists $win]} {
       scan [wm geometry $win] "%dx%d+%d+%d" width height x y
       wm geometry $win +[incr x 10]+[incr y 10]
   }

}

  1. How to resize a window

proc resizeWin {} {

   global win
   if {[info exists win] && [winfo exists $win]} {
       scan [wm geometry $win] "%dx%d+%d+%d" width height x y
       wm geometry $win [incr width 10]x[incr height 10]
   }

}

grid [label .l -text "Window handle:"] [label .l2 -textvariable win] grid [button .b1 -text "Open/Reset" -command openWin] - grid [button .b2 -text "Close" -command closeWin] - grid [button .b3 -text "Minimize" -command minimizeWin] - grid [button .b4 -text "Maximize" -command maximizeWin] - grid [button .b5 -text "Move" -command moveWin] - grid [button .b6 -text "Resize" -command resizeWin] -</lang>