<< Click to Display Table of Contents >> Navigation:  ThinBASIC Modules > UI (User Interface) > DIALOGS > Dialog Pseudo-object Events > <dialogName>.OnSysCommand

 

Description

 

Invoked once the user touches maximize/minimize/close or system control menu.

 

Syntax

 

callback function <dialogName>.OnSysCommand()

end function

 

Remarks

 

This is a counterpart of the %WM_SYSCOMMAND in Win32.

 

Thanks to pseudo-object global nature, you can reach for any dialog/control pseudo-objects from this callback.

 

You can also reach for low level callback parameters.

 

Example

 

uses "ui"

 

#resource "frmMain.rc"                          ' Resource file containing dialog named frmMain and button named btnClose

 

function TBMain()

  

  dialog new units, name frmMain, %HWND_DESKTOP ' Style and controls loaded from RC file,

                                                ' dialog and control have now automatic frmMain and btnClose pseudo-objects

 

  dialog show modal frmMain.Handle              ' Dialog displayed as modal

 

end function

 

' Event handler for named dialog

callback function frmMain.OnSysCommand()

 

end function