The WidenPath function redefines the current path as the area that would be painted if the path were stroked using the pen currently selected into the given device context.
BOOL WidenPath(
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HDC hdc |
// handle of device context |
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); |
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError. GetLastError may return one of the following error codes:
ERROR_CAN_NOT_COMPLETE
ERROR_INVALID_PARAMETER
ERROR_NOT_ENOUGH_MEMORY
The WidenPath function is successful only if the current pen is a geometric pen created by the ExtCreatePen function, or if the pen is created with the CreatePen function and has a width, in device units, of more than one.
The device context identified by the hdc parameter must contain a closed path.
Any Bézier curves in the path are converted to sequences of straight lines approximating the widened curves. As such, no Bézier curves remain in the path after WidenPath is called.