ImageGear for C and C++ on Windows v19.3 - Updated
IG_GUI_thumbnail_load_CB_register
Call this function to register a callback function to be called whenever a thumbnail is loaded in the thumbnail window hwndThumbnail.
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AT_ERRCOUNT ACCUAPI IG_GUI_thumbnail_load_CB_register(
HWND hwndThumbnail,
LPFNIG_GUITHUMBLOAD lpfnThumbLoad,
LPVOID lpPrivateData
);
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| Name | Type | Description |
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| hwndThumbnail | HWND | Windows handle to the Thumbnail window. |
| lpfnThumbLoad | LPFNIG_GUITHUMBLOAD | A pointer to the callback function that you are registering, to be called whenever a thumbnail is loaded. |
| lpPrivateData | LPVOID | A far pointer to any private data to which you want to pass the callback. |
Returns the number of ImageGear errors that occurred during this function call.
This function does not process image pixels.
None
See example under LPFNIG_GUITHUMBLOAD function.