TOOLBARHANDLE
The TOOLBARHANDLE structure serves as a working area for the toolbar functions. The user could initiate the toolbar handle at the start of program and save it in a variable (lets say a global variable for example) and he could use it with any LEAD toolbar function and then (lets say at the end of the program) free it. Therefore, the user doesn’t have to initialize the toolbar handle and free it every time he wants to do some toolbar action.