Mike Werner wrote:
> Fl_Menu_Item menu_Screen[] = {
> {" Default Window", 0xff09, (Fl_Callback*)cb_Screen_Default, 0, 12, 0, 0,
> 11, 7},
> {" Reduced Graphics", 0x77, (Fl_Callback*)cb_Screen_Reduced, 0, 8, 0, 0,
> 11, 7},
> {" Full Screen Graphics", 0x71, (Fl_Callback*)cb_Screen_Full, 0, 136, 0, 0,
> 11, 7},
> {" 1 Viewport", 0x31, (Fl_Callback*)cb_Split_1, 0, 8, 0, 0, 11, 7},
> {" 3 Viewports", 0x33, (Fl_Callback*)cb_Split_3, 0, 8, 0, 0, 11, 7},
> {" 4 Viewports", 0x34, (Fl_Callback*)cb_Split_4, 0, 136, 0, 0, 11, 7},
> {"Logos", 0x6c, (Fl_Callback*)cb_Logos, 0, 0, 0, 0, 11, 7},
> {0}
> }
>
> Above is the actual code generated by Fluid for my pulldown menu.
> The 4th menu item, labeled " 1 Viewport", refers to a callback called
> "cb_Split_1". How do I "invoke the callback", from within the callback
> definition panel of another widget? What is the exact syntax? Thanks.
Treat it just like a regular array.
If you want to refer to the menu item by its index number,
offhand I'd think something like:
menu_Screen[3].do_callback(w);
..in the callback panel of the other widgets would work,
where 'w' is the first argument passed to your callback.
I think it's supposed to be the menu widget itself.
So if your menu widget is named 'mymenu', then I guess
you can use that name in place of 'w'.
For a more precise example, I'd need more example code
to see what you have.
Or, if you prefer not to use hard coded index numbers
(I know I wouldn't) then walk the array dynamically to
find the item by name, eg:
for ( int t=0; menu_Screen[t].label(); t++ ) {
if ( strcmp(menu_Screen[t].label(), "1 Viewports") == 0 ) {
menu_Screen[t].do_callback();
}
}
This 'lookup' is essentially what find_item() does,
but if you're using an 8 year old version of fltk,
it may not have find_item(), so use the above instead.
Either make a function that does the above and call it,
or put that code right in the panel. (I'm assuming fluid 1.0.11
allows you to put code in the callback panel. I don't have a version
of fluid that old here.. I'm not I it would even compile on any
of my current machines)
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