Handle WM_PRINTCLIENT.
Don't use SelectClipRgn in WM_PRINTCLIENT.

diff --git a/dlls/comctl32/progress.c b/dlls/comctl32/progress.c
index a6e20e5..eb0b11a 100644
--- a/dlls/comctl32/progress.c
+++ b/dlls/comctl32/progress.c
@@ -627,6 +627,7 @@
     case WM_SETFONT:
         return (LRESULT)PROGRESS_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
 
+    case WM_PRINTCLIENT:
     case WM_PAINT:
         return PROGRESS_Paint (infoPtr, (HDC)wParam);