The "colors" parameter of SetDIBColorTable should be CONST.
diff --git a/dlls/gdi/dib.c b/dlls/gdi/dib.c
index 410295e..83952f0 100644
--- a/dlls/gdi/dib.c
+++ b/dlls/gdi/dib.c
@@ -308,7 +308,7 @@
/***********************************************************************
* SetDIBColorTable (GDI32.@)
*/
-UINT WINAPI SetDIBColorTable( HDC hdc, UINT startpos, UINT entries, RGBQUAD *colors )
+UINT WINAPI SetDIBColorTable( HDC hdc, UINT startpos, UINT entries, CONST RGBQUAD *colors )
{
DC * dc;
UINT result = 0;