ImageGear for C and C++ on Windows v20.1 - Updated
FNIGGUI_DSPL_UPDATE
API Reference Guide > GUI Component API Reference > GUI Component Callback Functions Reference > FNIGGUI_DSPL_UPDATE

This function is called by ImageGear to let your application update image display in a custom way.

Declaration:

 
Copy Code 
VOID FNIGGUI_DSPL_UPDATE(
      HIGEAR hIGear, 
      DWORD dwGrpID, 
      HWND hWnd
);

Arguments:

Name Type Description
hIGear HIGEAR The HIGEAR handle of the image.
dwGrpID DWORD Display group ID.
hWnd HWND The handle of the parent window.

Return Value:

Returns 0 if successful. Otherwise, returns the number of ImageGear errors that occurred during this function call.

Supported Raster Image Formats:

All formats supported by ImageGear.

Sample:

None

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