This function gets usage information from a layer object.
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AT_ERRCOUNT ACCUAPI IG_PDF_layer_get_usage_info(
HIG_PDF_LAYER hLayer,
HIG_PDF_ATOM hUsageKey,
LPHIG_PDF_BASOBJ lphUsageInfo
);
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| Name | Type | Description |
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| hLayer | HIG_PDF_LAYER | Layer object whose usage information is obtained. |
| hUsageKey | HIG_PDF_ATOM |
The usage key in the usage dictionary entry. Possible key values are:
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| lphUsageInfo | LPHIG_PDF_BASOBJ | The usage information associated with the given key in the Usage dictionary for the layer, or a NULL if the operation fails (because the layer is malformed or has no dictionary, or because the dictionary has no entry corresponding to the given key). |
Error count.
This function does not process image pixels.
A Usage dictionary entry provides more specific intended usage information than an intent entry.