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