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Programmatically click the minimize button in VB.NET
Posted on 2009-07-16
I wrote a .NET app that I would like to minimize programmatically without using me.windowstate.
Here's the issue -- when I click on a regular button that I made with the code Me.WindowState = Windows.Forms.FormWindowSt
However, if I click the standard minimize button in the upper right hand corner of the form, the form minimizes and the memory usage plummets, which is what I'm looking for. (Even though the memory usage figure might only be cosmetic).
My question -- does anyone know how to programmatically simulate clicking the little minimize button at the top right of the form?
Here's the issue -- when I click on a regular button that I made with the code Me.WindowState = Windows.Forms.FormWindowSt
However, if I click the standard minimize button in the upper right hand corner of the form, the form minimizes and the memory usage plummets, which is what I'm looking for. (Even though the memory usage figure might only be cosmetic).
My question -- does anyone know how to programmatically simulate clicking the little minimize button at the top right of the form?
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3 Comments
I would imagine that the memory goes down when you click the minimize button as the program then looses focus and is minimized. But when you set your form windowstate the program still has the focus.
After you've clicked on your button to minimize the form, try selecting a different program that is already open and see if the memory usage changes.
After you've clicked on your button to minimize the form, try selecting a different program that is already open and see if the memory usage changes.
You can using the windows message loop to send a minimize message to the window.
This link might be helpful.
http://www.thescarms.com/vbasic/ShowWindow.aspx
Also
http://ryanfarley.com/blog/archive/2004/05/10/605.aspx
This link might be helpful.
http://www.thescarms.com/vbasic/ShowWindow.aspx
Also
http://ryanfarley.com/blog/archive/2004/05/10/605.aspx
Haven't looked at the code in the project linked by CodeCruiser but I suspect it's using this method?
Public Class Form1
Private Const SW_MINIMIZE As Integer = 6
Private Declare Function ShowWindow Lib "user32" Alias "ShowWindow" (ByVal handle As IntPtr, ByVal nCmdShow As Integer) As Integer
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
ShowWindow(Me.Handle, SW_MINIMIZE)
End Sub
End Class
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