OverlayBitmap::canRender Method |
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| Returns whether the framework is able to render the overly on the video stream. | ||
| Syntax: | bool canRender() const; |
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| Return value: | true, if the overlay bitmap can be rendered on the live video, false otherwise. |
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| Remarks: | This method returns whether it is possible to copy the internal bitmap of the OverlayBitmap object on the video stream. The bitmap can be copied to the live video only, if the sink or frame filter that is located to the right in the image stream accepts a monochrome or RGB color format. If the object to the right requires a color eUYVY or other non monochrome or non RGB format, the bitmap will not be copied on the live video. In this case, text and drawings are not visible on the live video. |
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| See also: | OverlayBitmap, tColorformatEnum | |