LPFNART_GUI_TOOLBARNOTIFYFUNC

This callback, if registered, gets called when a user presses a button on the toolbar, or when the toolbar is closed via the close menu or 'x' on the mini-menu bar.

Declaration:

	Copy Code
typedef BOOL (FAR PASCAL* LPFNART_GUI_TOOLBARNOTIFYFUNC)( LPVOID lpPrivate, DWORD dwButtonID, UINT nReason );

Arguments:

Name	Type	Description
lpPrivate	LPVOID	A far pointer to private data being passed to the callback.
dwButtonID	DWORD	The ID for the button that was pressed. These are defined in ARTGUI.H and begin with ART_BUTTON_.
nReason	UINT	The reason that the callback is being called. These are defined in ARTGUI.H and include: ART_GUI_TOOLBAR_BUTTON_SELECTED, ART_GUI_TOOLBAR_NONE_SELECTED, ART_GUI_TOOLBAR_HIDDEN, ART_GUI_TOOLBAR_DESTROYED,

Return Value:

The return value is ignored at this time.

Supported Raster Image Formats:

This function does not process image pixels.

Sample:

None

Remarks:

In order to use this callback, it must be registered with ART using the ART_callback_register() function.

This callback passes dwButtonID and nReason to let you know what triggered the callback. dwButtonID is the button that was pressed. Each button has a unique ID:

ART_GUI_TOOLBAR_BUTTON_SELECTED	The button dwButtonID was pressed.
ART_GUI_TOOLBAR_NONE_SELECTED	The user presses a button; no other buttons are pressed.
ART_GUI_TOOLBAR_HIDDEN	The user pressed 'x' or closed the toolbar.
ART_GUI_TOOLBAR_DESTROYED	The developer called the Windows API function DestroyWindow() and passed the handle of the toolbar window.