How do i get the width of a bitmap?

is there a handy function for this in allegro or do i have to make one myself?

... BITMAP *b; b->w

BITMAPClick it.

Thanks ,
oh, missed that part of the manual.. will look harder next time.

but what should i do if the bitmap is in a datafile?
(BITMAP*)datafiles::sprites_enemies[1].dat->w
doesn't work :/

Needs more brackets on that one IIRC.
(BITMAP*)(sprites_enemies[1].dat)->w
Something like that; I forget exactly.

The dat member is a void*, so it doesn't have a w member. However, the void* is really a BITMAP, so we cast it: (BITMAP*) datafiles::sprites_enemies[1].dat. From there, we take the w member: ((BITMAP*) datafiles::sprites_enemies[1].dat)->w. This is the order of operations, and it is said that the -> binds "tighter" than the (BITMAP*), so we have to use parentheses to switch the order.

still doesn't work :( "`void*' is not a pointer-to-object type "

My post has the right way to do it...

totally sweet . thanks!