Remove references to PCVOID and LPUINT.
Remove types that don't exist on Windows.

diff --git a/include/commctrl.h b/include/commctrl.h
index 84fe421..33fdda1 100644
--- a/include/commctrl.h
+++ b/include/commctrl.h
@@ -324,7 +324,7 @@
 VOID WINAPI DrawStatusTextW (HDC, LPRECT, LPCWSTR, UINT);
 #define DrawStatusText WINELIB_NAME_AW(DrawStatusText)
 VOID WINAPI MenuHelp (UINT, WPARAM, LPARAM, HMENU,
-                      HINSTANCE, HWND, LPUINT);
+                      HINSTANCE, HWND, UINT*);
 
 typedef struct tagCOLORSCHEME
 {