compilation warning fix

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12443 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/msw/glcanvas.cpp b/src/msw/glcanvas.cpp
index f799f1ca586318efc3dae7d270ae8681e8c7eb1b..e06e74dc22af39e62221b2ca0571ca7d8ad3936f 100644 (file)
--- a/src/msw/glcanvas.cpp
+++ b/src/msw/glcanvas.cpp
@@ -351,11 +351,11 @@ static void AdjustPFDForAttributes(PIXELFORMATDESCRIPTOR& pfd, int *attribList)
         case WX_GL_LEVEL:
           // this member looks like it may be obsolete
           if (attribList[arg] > 0) {
-            pfd.iLayerType = PFD_OVERLAY_PLANE;
+            pfd.iLayerType = (BYTE)PFD_OVERLAY_PLANE;
           } else if (attribList[arg] < 0) {
-            pfd.iLayerType = PFD_UNDERLAY_PLANE;
+            pfd.iLayerType = (BYTE)PFD_UNDERLAY_PLANE;
           } else {
-            pfd.iLayerType = PFD_MAIN_PLANE;
+            pfd.iLayerType = (BYTE)PFD_MAIN_PLANE;
           }
           arg++;
           break;