Handle a toolbar

• handle directly the WM_TOOLBAR message,

• use a function linked to the toolbar's events.

Direct method

AES 4.1 features toolbars utilities. However WinDom uses its own internal toolbar functions. For compatibility, WinDom uses the same AES 4.1 toolbar message when an object from a toolbar is selected. The WM_TOOLBAR message has the following structure :

               evnt.buff[0] = WM_TOOLBAR
               evnt.buff[1] = AES application identifier
               evnt.buff[2] = always 0
               evnt.buff[3] = window handle
               evnt.buff[4] = selected object index
               evnt.buff[5] = keyboard state

Event function

The event toolbar function is used exactly like the event menu function or the event formular function. Here, a typical example :

         int main( void) {
             int res;
             WINDOW *win;
             OBJECT *tool;
             void do_menu( WINDOW *);
     
             /* create the window
                  ...
              */
     
             /* Insert the toolbar and attach the do_toolbar
              * function to toolbar events */
             WindSet( win, WF_TOOLBAR, tool, do_toolbar);
     
             while(1)
                 res = EvntWindom( MU_MESAG);
          }
     
         /* This function handles the toolbar events */
         void do_toolbar( WINDOW *win) {
             switch( evnt.buff[5]) {
             case BUTTON1:
                  break;
             case BUTTON2:
                  break;
            }
             ObjcChange( win, evnt.buff[4], 1);
         }

Object binded

Off course, as dialog box or menu, it is possible to binded object from a toolbar to a function (or a variable) with the ObjcAttach() function.