The "colors" parameter of SetDIBColorTable should be CONST.

diff --git a/include/wingdi.h b/include/wingdi.h
index d3d64bd..fac3c63 100644
--- a/include/wingdi.h
+++ b/include/wingdi.h
@@ -3517,7 +3517,7 @@
 BOOL      WINAPI SetDeviceGammaRamp(HDC,LPVOID);
 COLORREF  WINAPI SetDCBrushColor(HDC,COLORREF);
 COLORREF  WINAPI SetDCPenColor(HDC, COLORREF);
-UINT      WINAPI SetDIBColorTable(HDC,UINT,UINT,RGBQUAD*);
+UINT      WINAPI SetDIBColorTable(HDC,UINT,UINT,CONST RGBQUAD*);
 INT       WINAPI SetDIBits(HDC,HBITMAP,UINT,UINT,LPCVOID,const BITMAPINFO*,UINT);
 INT       WINAPI SetDIBitsToDevice(HDC,INT,INT,DWORD,DWORD,INT,
                          INT,UINT,UINT,LPCVOID,const BITMAPINFO*,UINT);