SHOW_CB
Called right after the dialog is opened, minimized or restored from a minimization.
Callback
int function(Ihandle *self, int mode); [in C] elem:showcb(mode: number) -> (ret: number) [in IupLua3] elem:show_cb(mode: number) -> (ret: number) [in IupLua5]Parameter mode indicates which of the following situations generated the event:
0 - Show, 1 - Restore, 2 - Minimize.