open an exe and click the button

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Hello,

I would like to open an exe and click the button to open the file from an exe app.

I know I can call:

System.Diagnostics.Process.Start("pathname");

how can I call the process to "click the button" on the application that I just open?

Thanks!

Posted 19-Apr-12 12:37pm

Member 3027075

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El_Codero · Accepted Answer · 2012-04-19T12:44:00

Hi,

you need to P/Invoke some functions from user32.dll.

Here's a example of how to achieve it:
http://stackoverflow.com/questions/5206223/press-button-in-another-applications-window[^]

Pinvoke.net provides useful informations about User32.dll (and many other) functions, and how to use them.
http://www.pinvoke.net/default.aspx/user32.FindWindowEx[^]

Also at Windows Dev Center:
http://msdn.microsoft.com/en-us/library/windows/desktop/ms633500%28v=vs.85%29.aspx[^]

Most important function is SendMessage, which sends Messages (Commands) to your Window:
http://msdn.microsoft.com/en-us/library/windows/desktop/ms644950%28v=vs.85%29.aspx[^]

Available Messages you can send to your Window:
http://msdn.microsoft.com/en-us/library/windows/desktop/ms644927%28v=vs.85%29.aspx#system_defined[^]

With Best Regards