Window creation/X11: Difference between revisions
Added Kotlin
(→{{header|TXR}}: Correct link. We can't link to the X11 sub-section because #X11_3 is ambiguous.) |
(Added Kotlin) |
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Line 574:
f.setVisible(true);
}
}</lang>
=={{header|Kotlin}}==
{{trans|C}}
{{libheader|Xlib}}
<lang scala>// Kotlin Native v0.3
import kotlinx.cinterop.*
import Xlib.*
fun main(args: Array<String>) {
val msg = "Hello, World!"
val d = XOpenDisplay(null)
if (d == null) {
println("Cannot open display")
return
}
val s = XDefaultScreen(d)
val w = XCreateSimpleWindow(d, XRootWindow(d, s), 10, 10, 160, 160, 1,
XBlackPixel(d, s), XWhitePixel(d, s))
XSelectInput(d, w, ExposureMask or KeyPressMask)
XMapWindow(d, w)
val e = nativeHeap.alloc<XEvent>()
while (true) {
XNextEvent(d, e.ptr)
if (e.type == Expose) {
XFillRectangle(d, w, XDefaultGC(d, s), 55, 40, 50, 50)
XDrawString(d, w, XDefaultGC(d, s), 45, 120, msg, msg.length)
}
else if (e.type == KeyPress) break
}
XCloseDisplay(d)
nativeHeap.free(e)
}</lang>
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