From 6fc8d0137408ea20df90ba37b5582caf48cbf0c3 Mon Sep 17 00:00:00 2001
From: sbosse <sbosse@uni-bremen.de>
Date: Mon, 21 Jul 2025 23:02:37 +0200
Subject: [PATCH] Mon 21 Jul 22:43:21 CEST 2025

---
 js/x11/core/examples/simple/alloccolor.js | 34 +++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 js/x11/core/examples/simple/alloccolor.js

diff --git a/js/x11/core/examples/simple/alloccolor.js b/js/x11/core/examples/simple/alloccolor.js
new file mode 100644
index 0000000..13ba2fb
--- /dev/null
+++ b/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);
+    });
+});