On 11/8/10 8:40 AM, [email protected] wrote:
NS_ASSERTION(!docShell ^ !mCanvasElement, "Cannot set both docshell and
canvas element");
Where am I going wrong here? Should there be some additional prior
initialization of the context? both docShell and mCanvasElement are null.
A 2d rendering context requires either a docshell or a canvas element,
but not both, to operate properly. So you must either call
SetCanvasElement or InitializeWithSurface.
If you do neither, then the 2d context doesn't actually have anywhere to
draw to.
-Boris
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