IG_GUI_pan_CB_register

Call this function to register a callback function that is to be called after a Pan window is updated.

Declaration:

	Copy Code
AT_ERRCOUNT ACCUAPI IG_GUI_pan_CB_register ( HWND hWndPan, LPFNIG_GUIPANUPDATE lpfnPanUpdate, LPVOID lpPrivate );

Name	Type	Description
hWndPan	HWND	A windows handle to the Pan window.
lpfnPanUpdate	LPFNIG_GUIPANUPDATE	A pointer to the callback function called whenever a pan window is updated.
lpPrivateData	LPVOID	A far pointer to any private data that you want to pass to the callback.

Returns the number of ImageGear errors that occurred during this function call.

This function does not process image pixels.

None

See the example for the LPFNIG_GUIPANUPDATE callback function.

See also the description for the callback type LPFNIG_GUIPANUPDATE.