--- q_a/samples/angle/angle.c	2018/08/09 18:29:19	1.1.1.1
+++ q_a/samples/angle/angle.c	2018/08/09 18:29:39	1.1.1.2
@@ -78,7 +78,7 @@ int APIENTRY WinMain(HANDLE hInstance, H
 
 
     /* create the top dialog as a child of the main window. */
-    hwndDlg = CreateDialog (hInst, "AngleDlg", hwndMain, (WNDPROC) DlgProc);
+    hwndDlg = CreateDialog (hInst, "AngleDlg", hwndMain, (DLGPROC) DlgProc);
 
     /* Send main window a WM_SIZE message so that it will size the top
      *  dialog correctly.  Also, force a repaint of the main window