Try adding 'SetGraphicsDriver GLMax2DDriver()' before the Graphics command.
The Gl driver catch the negative values for colors.
The DX driver not.
You can see a post of mark in the bug forum.
http://www.blitzbasic.com/Community/posts.php?topic=48646
The Gl driver catch the negative values for colors.
The DX driver not.
You can see a post of mark in the bug forum.
http://www.blitzbasic.com/Community/posts.php?topic=48646