Returns the current pixel color depth.
Returns the current pixel format. This can be very useful to know in order
to write generic functions which select a different code path internally
depending on the color depth being used.
Note that the function returns whatever value you may have set previously
with set_color_depth(), which can be different from the current color
depth of the screen global variable. If you really need to know the color
depth of the screen, use bitmap_color_depth().
The following projects include source code containing this keyword: