Add needed casts for a "no warnings" compile of comctl32.

diff --git a/dlls/comctl32/progress.c b/dlls/comctl32/progress.c
index b18d9c6..b3961ff 100644
--- a/dlls/comctl32/progress.c
+++ b/dlls/comctl32/progress.c
@@ -314,7 +314,7 @@
         return (LRESULT)infoPtr->Font;
 
     case WM_SETFONT:
-        return PROGRESS_SetFont (infoPtr, (HFONT)wParam, (BOOL)lParam);
+        return (LRESULT)PROGRESS_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
 
     case WM_PAINT:
         return PROGRESS_Paint (infoPtr, (HDC)wParam);