Window creation/X11: Difference between revisions
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}</lang>
=={{header|Julia}}==
This was based on https://en.wikipedia.org/wiki/Xlib, and mostly quoted from from the XLib.jl test2() testing code function.
<lang julia>
using Xlib
function x11demo()
# Open connection to the server.
dpy = XOpenDisplay(C_NULL)
dpy == C_NULL && error("unable to open display")
scr = DefaultScreen(dpy)
# Create a window.
win = XCreateSimpleWindow(dpy, RootWindow(dpy, scr), 10, 10, 300, 100, 1,
BlackPixel(dpy, scr), WhitePixel(dpy, scr))
# Select the kind of events we are interested in.
XSelectInput(dpy, win, ExposureMask | KeyPressMask)
# Show or in x11 terms map window.
XMapWindow(dpy, win)
# Run event loop.
evt = Ref(XEvent())
while true
XNextEvent(dpy, evt)
# Draw or redraw the window.
if EventType(evt) == Expose
XFillRectangle(dpy, win, DefaultGC(dpy, scr), 24, 24, 16, 16)
XDrawString(dpy, win, DefaultGC(dpy, scr), 50, 50, "Hello, World! Press any key to exit.")
end
# Exit whenever a key is pressed.
if EventType(evt) == KeyPress
break
end
end
# Shutdown server connection
XCloseDisplay(dpy)
end
x11demo()
</lang>
=={{header|Kotlin}}==
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