ImageGear for C and C++ on Windows v19.10 - Updated
LPFNIG_GUITHUMBCREATE
API Reference Guide > Core Component API Reference > Core Component Callback Functions Reference > LPFNIG_GUITHUMBCREATE

This function is called when the user appends a thumbnail in the window hWndThumbnail.

Declaration:

 
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typedef VOID (ACCUAPI LPFNIG_GUITHUMBCREATE) (
        LPVOID lpPrivate, 
        HWND hWndThumbnail, 
        UINT nIndex
);

Arguments:

Name Type Description
lpPrivate LPVOID Far pointer to the private data that was passed.
hWndThumbnail HWND Thumbnail window handle.
nIndex UINT Index of a thumbnail icon.

Return Value:

None

Supported Raster Image Formats:

This function does not process image pixels.

Sample:

None

Remarks:

This type of callback function is registered by a call to IG_GUI_thumbnail_create_CB_register().