typedef struct {
- unsigned long rgb; /* on screen */
+ Rgb rgb; /* on screen */
char c; /* canonical */
} CanonColourInfo;
#define CANONICALISE_IMAGE(im,w,h, COMPUTE_RGB) do{ \
/* compute_rgb should be a number of statements, or \
* a block, which assigns to \
- * unsigned long rgb; \
+ * Rgb rgb; \
* given the values of \
* int x,y; \
* all of which are anamorphic. Result is stored in im. \