Creates an image surface of the specified format and dimensions.
Initially the surface contents are all 0. (Specifically, within
each pixel, each color or alpha channel belonging to format will
be 0. The contents of bits within a pixel, but not belonging
to the given format are undefined).
Creates an image surface of the specified format and dimensions. Initially the surface contents are all 0. (Specifically, within each pixel, each color or alpha channel belonging to format will be 0. The contents of bits within a pixel, but not belonging to the given format are undefined).