Window creation
You are encouraged to solve this task according to the task description, using any language you may know.
Ada
<lang ada> with Gtk.Window; use Gtk.Window; with Gtk.Widget; use Gtk.Widget;
with Gtk.Handlers; with Gtk.Main;
procedure Windowed_Application is
Window : Gtk_Window;
package Handlers is new Gtk.Handlers.Callback (Gtk_Widget_Record);
package Return_Handlers is
new Gtk.Handlers.Return_Callback (Gtk_Widget_Record, Boolean);
function Delete_Event (Widget : access Gtk_Widget_Record'Class)
return Boolean is
begin
return False;
end Delete_Event;
procedure Destroy (Widget : access Gtk_Widget_Record'Class) is
begin
Gtk.Main.Main_Quit;
end Destroy;
begin
Gtk.Main.Init;
Gtk.Window.Gtk_New (Window);
Return_Handlers.Connect
( Window,
"delete_event",
Return_Handlers.To_Marshaller (Delete_Event'Access)
);
Handlers.Connect
( Window,
"destroy",
Handlers.To_Marshaller (Destroy'Access)
);
Show (Window);
Gtk.Main.Main;
end Windowed_Application; </lang>
AutoHotkey
<lang AutoHotkey> Gui, Add, Text,, Hello Gui, Show</lang>
C
Compile Command: gcc `sdl-config --cflags` `sdl-config --libs` SDL_Window.c -o window <lang c> /*
* Opens an 800x600 16bit color window.
* Done here with ANSI C.
*/
#include <stdio.h>
#include <stdlib.h>
#include "SDL.h"
int main()
{
SDL_Surface *screen;
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
fprintf(stderr, "Unable to initialize SDL: %s\n", SDL_GetError());
return 1;
}
atexit(SDL_Quit);
screen = SDL_SetVideoMode( 800, 600, 16, SDL_SWSURFACE | SDL_HWPALETTE );
return 0;
}</lang>
Compile command: gcc `gtk-config --cflags` `gtk-config --libs` -o window window.c
<lang c> #include <gtk/gtk.h>
int
main(int argc, char *argv[])
{
GtkWidget *window;
gtk_init(&argc, &argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_signal_connect(GTK_OBJECT(window), "destroy",
GTK_SIGNAL_FUNC(gtk_main_quit), NULL);
gtk_widget_show(window);
gtk_main();
return 0;
}</lang>
Compile command: gcc -Wall -pedantic `pkg-config --cflags gtk+-2.0` `pkg-config --libs gtk+-2.0` -o window window.c
<lang c> #include <gtk/gtk.h>
int
main(int argc, char *argv[])
{
GtkWidget *window;
gtk_init(&argc, &argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
g_signal_connect (window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
gtk_widget_show(window);
gtk_main();
return 0;
}</lang>
C++
Compiler command: qmake -pro; qmake
<lang cpp> #include <QApplication>
#include <QMainWindow>
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QMainWindow window;
window.show();
return app.exec();
}</lang>
Compiler command: g++ filename.cc -o test `pkg-config --cflags --libs gtkmm-2.4`
<lang cpp> #include <iostream>
#include <gtkmm.h>
int
main( int argc, char* argv[] )
{
try
{
Gtk::Main m( argc, argv ) ;
Gtk::Window win ;
m.run( win ) ;
}
catch( std::exception const & exc )
{
std::cout << exc.what() << std::endl ;
exit( -1 ) ;
}
exit( 0 ) ;
}</lang>
C#
Winforms
<lang csharp>using System; using System.Windows.Forms;
public class Window {
[STAThread]
static void Main() {
Form form = new Form();
form.Text = "Window";
form.Disposed += delegate { Application.Exit(); };
form.Show();
Application.Run();
}
}</lang>
D
<lang d> module Window;
import fltk4d.all;
void main() {
auto window = new Window(300, 300, "A window");
window.show;
FLTK.run;
}</lang>
<lang d> import derelict.sdl.sdl;
int main(char[][] args)
{
DerelictSDL.load();
SDL_Event event;
auto done = false;
SDL_Init(SDL_INIT_VIDEO);
scope(exit) SDL_Quit();
SDL_SetVideoMode(1024, 768, 0, SDL_OPENGL);
SDL_WM_SetCaption("My first Window", "SDL test");
while (!done)
{
if (SDL_PollEvent(&event) == 1)
{
switch (event.type)
{
case SDL_QUIT:
done = true;
break;
default:
break;
}
}
}
return 0;
}</lang>
QD is a simple and easy-to-use wrapper around SDL. <lang d> import qd;
void main() {
screen(640, 480);
while (true) events();
}</lang>
E
Swing
when (currentVat.morphInto("awt")) -> {
def w := <swing:makeJFrame>("Window")
w.setContentPane(<swing:makeJLabel>("Contents"))
w.pack()
w.show()
}
Groovy
import groovy.swing.SwingBuilder new SwingBuilder().frame(title:'My Window', size:[200,100]).show()
IDL
With some example values filled in:
Id = WIDGET_BASE(TITLE='Window Title',xsize=200,ysize=100) WIDGET_CONTROL, /REALIZE, id
J
A minimalist modal dialog:
title=:'"Hamlet -- Act 3, Scene 1"' text=:'"To be, or not to be: that is the question:"' wd 'mb ',title,text
A free-standing window:
MINWDW=: 0 : 0 pc minwdw; pas 162 85;pcenter; rem form end; ) minwdw_run=: 3 : 0 wd MINWDW wd 'pshow;' ) minwdw_close=: 3 : 0 wd'pclose' ) minwdw_run ''
Java
<lang java>import javax.swing.JFrame;
public class Main {
public static void main(String[] args) throws Exception {
JFrame w = new JFrame("Title");
w.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
w.setSize(800,600);
w.setVisible(true);
}
}</lang>
JavaScript
window.open("webpage.html", "windowname", "width=800,height=600");
mIRC Scripting Language
Switches: C = Center Window p = Picture Window d = Desktop Window
alias CreateMyWindow {
.window -Cp +d @WindowName 600 480
}
Objective-C
It opens a 800×600 window, centered on the screen, with title "A Window".
<lang objc>#include <Foundation/Foundation.h>
- include <AppKit/AppKit.h>
@interface Win : NSWindow { } - (void)applicationDidFinishLaunching: (NSNotification *)notification; - (BOOL)applicationShouldTerminateAfterLastWindowClosed: (NSNotification *)notification; @end
@implementation Win : NSWindow
-(id) init
{
[self initWithContentRect: NSMakeRect(0, 0, 800, 600) styleMask: (NSTitledWindowMask | NSClosableWindowMask) backing: NSBackingStoreBuffered defer: NO];
[self setTitle: @"A Window"]; [self center];
return self;
}
-(void) dealloc
{
[super dealloc];
}
- (void)applicationDidFinishLaunching: (NSNotification *)notification {
[self orderFront: self];
}
- (BOOL)applicationShouldTerminateAfterLastWindowClosed: (NSNotification *)notification {
return YES;
} @end
int main() {
Win *mywin; NSAutoreleasePool *pool;
pool = [[NSAutoreleasePool alloc] init]; [NSApplication sharedApplication]; mywin = [[Win alloc] init]; [NSApp setDelegate: mywin]; [NSApp runModalForWindow: mywin]; return EXIT_SUCCESS;
}</lang>
Perl
<lang perl> use Tk;
MainWindow->new(); MainLoop;</lang>
<lang perl> use SDL::App;
use SDL::Event;
$app = SDL::App->new;
$app->loop({
SDL_QUIT() => sub { exit 0; },
});</lang>
<lang perl> use Gtk '-init';
$window = Gtk::Window->new;
$window->signal_connect(
'destroy' => sub { Gtk->main_quit; }
);
$window->show_all;
Gtk->main;</lang>
<lang perl> use Gtk2 '-init';
$window = Gtk2::Window->new;
$window->signal_connect(
'destroy' => sub { Gtk2->main_quit; }
);
$window->show_all;
Gtk2->main;</lang>
Python
<lang python> import Tkinter
w = Tkinter.Tk() w.mainloop()</lang>
<lang python> from wxPython.wx import *
class MyApp(wxApp):
def OnInit(self):
frame = wxFrame(NULL, -1, "Hello from wxPython")
frame.Show(true)
self.SetTopWindow(frame)
return true
app = MyApp(0)
app.MainLoop()</lang>
<lang python> import win32ui
from pywin.mfc.dialog import Dialog d = Dialog(win32ui.IDD_SIMPLE_INPUT) d.CreateWindow()</lang>
<lang python> import gtk
window = gtk.Window() window.show() gtk.main()</lang>
RapidQ
create form as qform
center
width=500
height=400
end create
form.showModal
Ruby
<lang ruby> require 'tk'
window = TkRoot::new() window::mainloop()</lang>
<lang ruby> require 'gtk2'
window = Gtk::Window.new.show Gtk.main</lang>
Tcl
Loading the Tk package is all that is required to get an initial window: <lang tcl>package require Tk</lang> If you need an additional window: <lang tcl>toplevel .top</lang> If you are using the increasingly popular tclkit under MS Windows, all you have to do is associate the tclkit with the extension “.tcl” and then create an empty file with, e.g., with the name nothing.tcl. Double-clicking that will “open a window” (an empty one).
Toka
Toka does not inherently know about graphical environments, but can interact with them using external libraries. This example makes use of the SDL library bindings included with Toka.
needs sdl 800 600 sdl_setup
Visual Basic .NET
<lang vb> Dim newForm as new Form
newForm.Text = "It's a new window"
newForm.Show()</lang>