Hi,
In GDI+, some of the DrawImage functions have a parameter for a callback function to abort drawing. In the MSDN doc, it is said that the callback function is called several times, but with my experience, it seems that the callback function is called only once at the beginning of the drawing process...
Does anybody know if there is a mean to call the callback function more frequently ?...
More over, when i try to pass a parameter to the callback function, (with the callback_param of the DrawImage function), GDI+ crash (access violation) after returning from the callback function...
Any similar experience ?
thanks in advance for any help
S.D.
In GDI+, some of the DrawImage functions have a parameter for a callback function to abort drawing. In the MSDN doc, it is said that the callback function is called several times, but with my experience, it seems that the callback function is called only once at the beginning of the drawing process...
Does anybody know if there is a mean to call the callback function more frequently ?...
More over, when i try to pass a parameter to the callback function, (with the callback_param of the DrawImage function), GDI+ crash (access violation) after returning from the callback function...
Any similar experience ?
thanks in advance for any help
S.D.