Visual Basic > Forms

How to hide, show, minimize MDI child forms.

How to hide, show, minimize MDI child forms.

 'Note: This has only been tested with VB 3 and VB 4-16, if you convert

' Here's how to hide/show/minimize/...etc. MDI children

' Declare API and Constants

Declare Function ShowWindow% Lib "User" (ByVal hWnd%, ByVal nCmdShow%)

Global Const SW_HIDE = 0
Global Const SW_SHOWNORMAL = 1
Global Const SW_SHOWMINIMIZED = 2
Global Const SW_SHOWMAXIMIZED = 3
Global Const SW_SHOWNOACTIVE = 4
Global Const SW_SHOW = 5
Global Const SW_MINIMIZE = 6
Global Const SW_SHOWMINNOACTIVE = 7
Global Const SW_SHOWNA = 8
Global Const SW_RESTORE = 9

' Examples: 

Dim Re%

        ' Hide the child form
        Re% = ShowWindow(frmMDIChild.hWnd, SW_HIDE)

        ' Show the child form
        Re% = ShowWindow(frmMDIChild.hWnd, SW_SHOW)

        ' Minimize the child form
        Re% = ShowWindow(frmMDIChild.hWnd, SW_MINIMIZE)