LToolbar::ToolbarCallBack

Summary

User-overrideable LToolbar::ToolbarCallBack function to process certain events.

Syntax

virtual L_INT LToolbar::ToolbarCallBack (nButtonID, dwData)

Parameters

L_UINT nButtonID

The button that was responsible for creating this toolbar event.

L_UINT32 dwData

User-defined data that will retrieved with the toolbar information.

Returns

Comments

This function is called for each event that occurs in the toolbar.

To receive notification of toolbar events, you must derive a class from LToolbar and override this function. In addition, the use of the callback function must be enabled by calling LToolbar::EnableToolbarCallBack.

Required DLLs and Libraries

• LTTLB
• For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

See Also

Functions

• LToolbar::EnableToolbarCallBack
• Class Members

Topics

• Receiving Toolbar Events

Example

class LUserToolbar:public LToolbar 
 
{ 
 
protected : 
 
virtual L_INT   ToolBarCallBack(L_UINT nButton, L_UINT32 dwData); 
 
}; 
 
L_INT LUserToolbar::ToolBarCallBack(L_UINT nButton, L_UINT32 dwData) 
 
{ 
   UNREFERENCED_PARAMETER(nButton); 
   UNREFERENCED_PARAMETER(dwData); 
 
 
   //do your work; 
 
   return 0; 
 
} 
 
// the user should call LToolbar::EnableToolBarCallBack() 
 
L_INT LToolbar__ToolBarCallBackExample() 
{ 
   LUserToolbar userToolbar; 
 
   userToolbar.EnableToolbarCallBack (TRUE); 
 
   return SUCCESS; 
}