Changed return type to bool type where it suits
@@ -143,8 +143,8 @@ void VDP_setPalette(u16 num, const u16 *pal);
// these functions should be private as they are called by VDP_fadeXXX functions internally
// but they can be useful sometime for better control on the fading processus
-u16 VDP_doFadingStep();
-u16 VDP_initFading(u16 fromcol, u16 tocol, const u16 *palsrc, const u16 *paldst, u16 numframe);
+bool VDP_doFadingStep();
+bool VDP_initFading(u16 fromcol, u16 tocol, const u16 *palsrc, const u16 *paldst, u16 numframe);
/**
