Returns some 32-bit integer that is unique for all Layer objects.
Declaration:
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IG_PDF_layer_get_unique_id(
HIG_PDF_LAYER hLayer,
LPUINT lpnUniqueId);
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Arguments:
| hLayer | Layer object. |
| lpnUniqueId | The unique identifier. |
Return Value:
A unique identifier of this Layer Object.
Supported Raster Image Formats:
This function does not process image pixels.
Remarks:
It is guaranteed that there cannot be two Layer objects with the same UniqueIds. This can be used for Layer objects' identification.