diff --git a/core/sys/windows/user32.odin b/core/sys/windows/user32.odin
index 49ebb49cb..76826f80b 100644
--- a/core/sys/windows/user32.odin
+++ b/core/sys/windows/user32.odin
@@ -871,3 +871,6 @@ NONCLIENTMETRICSW :: struct {
 	iPaddedBorderWidth: i32,
 }
 LPNONCLIENTMETRICSW :: ^NONCLIENTMETRICSW
+
+LWA_COLORKEY :: 0x1
+LWA_ALPHA    :: 0x2