CreateBitmap

Bitmaps
Aptilis 1

CreateBitmap(width, height)

CreateBitmap creates a virtual (ie. in memory) bitmap for you to draw onto.
There are several graphic functions that allow you to set pixels, draw lines, circles, etc...
You can then either save the graphic into a GIF file or output it into the standard output if you want to send a GIF file to a web page through a CGI-script.
A default palette is assigned to the bitmap. Aptilis bitmap can only be of the 256 colour type. You can change the colours if you wish to, but that may ruin the True Type fonts anti-aliasing. See also setColor, RGB, hexColor.

Return Value:
The handle of the new bitmap, or -1 if it wasn't possible to create the bitmap because of a lack of memory or because one or the two dimensions was equal to 0. Check _errno for more details.

For more details see the Bitmap topic.