GM_GetPixelColorRow |
Retrieves the color values for an entire row of the provided layer. If any pixels don't have valid values they will be replaced by aInvalidVal. This function is much faster than individually getting the color value for individual pixels using the GM_GetPixelColor function, so use this to access large portions of a loaded layer.
SyntaxGM_DLL_EXPORTED GM_Error_t32 __stdcall GM_GetPixelColorRow ( GM_LayerHandle_t32 aLayer, // IN: Layer to get color from sint32 aRow, // IN: Y coord of pixel (0 is topmost) COLORREF* aColorRow, // OUT: Buffer to hold color values COLORREF aInvalidVal // IN: Value to use for invalid pixels );