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Mon 21 Jul 22:43:21 CEST 2025

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sbosse 2025-07-21 23:06:04 +02:00
parent 2dce314aa0
commit 96e4eea210
1 changed files with 36 additions and 0 deletions
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36
js/x11/examples/simple/gcinvert.js Normal file
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/*
* GCFunction usage example
*/
var x11 = require('../../lib');
x11.createClient(function(err, display) {
var X = display.client;
var root = display.screen[0].root;
var white = display.screen[0].white_pixel;
var black = display.screen[0].black_pixel;
var wid = X.AllocID();
X.CreateWindow(wid, root, 0, 0, 400, 300, 0, 0, 0, 0, {
backgroundPixel: black,
eventMask: x11.eventMask.ButtonPress|x11.eventMask.Exposure });
var gc = X.AllocID();
X.CreateGC(gc, wid, {foreground : white, 'function' : x11.gcFunction.GXinvert});
X.MapWindow(wid);
X.on('event', function(ev) {
if (ev.type === 12) {
X.PolyFillRectangle(wid, gc, [0, 0, 400, 300]);
}
if (ev.type === 4) {
var x = ev.x;
var y = ev.y;
X.PolyFillRectangle(wid, gc, [x - 25, y - 25, 50, 50]);
}
});
});