Improved Windows support

examples/winapi/winapi.q

@@ -0,0 +1,10 @@
+import mem
+
+main() {
+	text := mem.alloc(4)
+	text[0] = 'H'
+	text[1] = 'i'
+	text[2] = '!'
+	user32.MessageBoxA(0, text, text, 0x00240040)
+	mem.free(text, 4)
+}