ImageGear for C and C++ on Linux v19.10 - Updated
IG_dspl_free_grp_id_get
This function searches and returns the first free unused group identifier.
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AT_ERRCOUNT ACCUAPI IG_dspl_free_grp_id_get(
[IN] HIGEAR hIGear,
[IN] DWORD dwMin,
[OUT] LPDWORD lpdwFreeGrpId
);
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| Name | Type | Description |
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| hIGear | HIGEAR | ImageGear handle of image. |
| dwMin | DWORD | Minimum value from which ImageGear should start to search. |
| lpdwFreeGrpId | LPDWORD | Pointer to where to return free group identifier. |
Returns the number of ImageGear errors that occurred during this function call.
All pixel formats supported by ImageGear for C and C++.
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HIGEAR hIGear; /* HIGEAR handle of image */ DWORD nGrpID; /* display group identifier */ ... IG_dspl_free_grp_id_get( hIGear, 0, &nGrpID ); ... |
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This function also sets a flag so the returned group is marked as used and the next call to this function with the same parameters returns another group id. To mark a group as unused and reset it to the default values, call function IG_dspl_grp_reset().