Added Clipboard helper

modules/clipboard.js

@@ -0,0 +1,50 @@
+
+function nativeAddModule(name)
+{
+    var value = getJSModule(name);
+    var ret = "duk_peval_string_noresult(ctx, \"addModule('" + name + "', Buffer.from('" + Buffer.from(value).toString('base64') + "', 'base64').toString());\");";
+    module.exports(ret);
+}
+
+function win_copytext(txt)
+{
+    var GMEM_MOVEABLE = 0x0002;
+    var CF_TEXT = 1;
+
+    var GM = require('_GenericMarshal');
+    var user32 = GM.CreateNativeProxy('user32.dll');
+    var kernel32 = GM.CreateNativeProxy('kernel32.dll');
+    kernel32.CreateMethod('GlobalAlloc');
+    kernel32.CreateMethod('GlobalLock');
+    kernel32.CreateMethod('GlobalUnlock');
+    user32.CreateMethod('OpenClipboard');
+    user32.CreateMethod('EmptyClipboard');
+    user32.CreateMethod('CloseClipboard');
+    user32.CreateMethod('SetClipboardData');
+
+    var h = kernel32.GlobalAlloc(GMEM_MOVEABLE, txt.length + 2);
+    h.autoFree(false);
+    var hbuffer = kernel32.GlobalLock(h);
+    hbuffer.autoFree(false);
+    var tmp = Buffer.alloc(txt.length + 1);
+    Buffer.from(txt).copy(tmp);
+    tmp.copy(hbuffer.Deref(0, txt.length + 1).toBuffer());
+    kernel32.GlobalUnlock(h);
+
+    user32.OpenClipboard(0);
+    user32.EmptyClipboard();
+    user32.SetClipboardData(CF_TEXT, h);
+    user32.CloseClipboard();
+}
+
+switch(process.platform)
+{
+    case 'win32':
+        module.exports = win_copytext;
+        break;
+    case 'linux':
+        break;
+    case 'darwin':
+        break;
+}
+module.exports.nativeAddModule = nativeAddModule;