How to select all in another program?

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I want to Select all a text in another program, by using "SendKeys".
I did it for a Notepad file:

C#

IntPtr appHandle = FindWindow(null, "Untitled - Notepad");
        if (appHandle == IntPtr.Zero)
        {
            MessageBox.Show("Specified app is not running.");
            return;
        }

        SetForegroundWindow(appHandle);
        System.Threading.Thread.Sleep(500);

        SendKeys.SendWait("^a");

but in the program that I want to select all its text, ctrl+a is considered for other command.

What should I do?

Posted 30-May-15 21:59pm

DevSTDev

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Richard MacCutchan 31-May-15 4:22am

That will only work if the other program responds to Ctrl+A by selecting all its text.

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OriginalGriff · Accepted Answer · 2015-05-30T22:29:00

It will depend on the "other program" and how it responds to keyboard input - there is no "system wide" Select All function, many programs don;t even have one - or need one - so you can;t just assume that you can do this.
Sending CTRL+A as you have done may work - or it may do nothing, or something totally different depending on who coded it.

There is no generic way to "Select All" in a windows application that is guaranteed to work for all applications.