Mon 21 Jul 22:43:21 CEST 2025

js/x11/core/examples/simple/alloccolor.js

@@ -0,0 +1,34 @@
+var x11 = require('../../lib');
+
+var Exposure = x11.eventMask.Exposure;
+
+x11.createClient(function(err, display) {
+    var repaint;
+    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, 
+       10, 10, 400, 300 
+    );
+    X.MapWindow(wid);
+  
+    // parameters: colormap, red, green, blue
+    X.AllocColor(display.screen[0].default_colormap, 0xffff, 0xffff, 0, function(err, color) {
+        var gc = X.AllocID();
+        X.CreateGC(gc, wid, { foreground: color.pixel, background: black } );
+        repaint = setInterval(function() {
+            X.PolyFillRectangle(wid, gc, [100, 100, 200, 100]);
+        }, 1000);
+    });
+    X.on('error', function(e) {
+        console.log(e);
+    });
+    X.on('end', function() {
+        console.log('client destroyed');
+        clearInterval(repaint);
+    });
+});