how to cal window+button programmatically

[visweswaran2830]

I want to cal window button using sendkeys.send() method. I have tried with sendkeys.send("{WIN}") and sendkeys.send("{Lwin}"). but not working..
Can you help me

[tlhintoq]

"How to cal" ??
What do you mean by "cal" ?

Are you trying to press the Windows key programmatically?
I don't see as the Windows key is part of the SendKeys methods on the MSDN.

Are you trying to send Win+L for lockworkstation?

Process.Start("rundll32.exe", "user32.dll,LockWorkStation");

[visweswaran2830]

I created client-server application. In that, if I press windows key in server side that should be triggered programmatically at the client end. I want to know how to invoke that key press at client end using send-key methods.

[debasisdas]

You can't handle windows key.

[!NoItAll]

You can't handle it, but you can react to it.

    Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
        If e.keyvalue = 91 Then
            'the windows key has been pressed
        End If
 
    End Sub
 

The key still gets handled by windows. You can not suppress it, or cancel it, but you can have code in your program do something when it is pressed.

If you want to send it you can send it with SendKeys.send(key.lwin) - which sends the left windows key to the application with the current focus - but apparently does NOT send it to the OS because I have been unable to get Windows to react to it. I may be doing something wrong though...

 
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
 
        AppActivate("Some Unsuspecting Application")
        SendKeys.Send(Keys.LWin)
 
    End Sub
 

[tlhintoq]

I created client-server application. In that, if I press windows key in server side that should be triggered programmatically at the client end. I want to know how to invoke that key press at client end using send-key methods.

Maybe the answer is concentrate on *why* you want to send the Windows key. Sending the Windows key is a means to an end. What is the end goal you are trying to achieve. There may be another way to do it. For example in the LockWorkstation example you don't send Windows-L, but you can call the LockWorkstation WinAPI call. So what are you trying to do by sending the Windows key?

[!NoItAll]

I concur with tlhintoq, it seems like sendkeys is just the wrong approach for what you may want to do. Let us know more about what you want to do and someone may be able to suggest a workable solution for you.
Windows API's aren't all that scary ....

[visweswaran2830]

Just I want to invoke the following keys like win+d,win+E and other so that I need..... Is there any another way?

[!NoItAll]

Newbie:
We already know that. It won't help for you to ask the same question over and over again without answering any of ours! Tells us more about what it is you want to do. Win+E brings up an explorer panel - that's easy to do without trying to stuff keystrokes into the system.

[tlhintoq]

Just I want to invoke the following keys like win+d,win+E and other so that I need..... Is there any another way?

Yes. There are other ways to do things you are wanting to do. Don't get tunnel vision. You are so focused on sending a Windows key that you are not looking for other methods or reading the tips given to you.

Win+L gives you a lockworkstation and you have been given a method for that.

You want to do a Win+E for Windows explorer.

Process.Start("explorer.exe", locationToOpen.Text);

Try searching for your actual goals ("C# Open WIndows Explorer") instead of what you think is the only method.

[visweswaran2830]

Thank you for your kind response.....