Paste to Control on External Application

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Is there a way you can send a Paste or SendKeys to a control on an external window, if you know the Handel by using Spy++?

Or even set focus to that window and then to the control? Then SendKeys

Posted 28-Dec-12 4:50am

Steven Rylands

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Oleksandr Kulchytskyi · Answer 1 · 2012-12-28T05:14:00

Yep, of course this is possible.
you can achive this by using P/Invoke technologi in .NET environment.

So basically you must retreive a window handle (HWND) by it text (caption) and
mark this window as foreground with help of (WIN32 API):

C#

[DllImport("user32")]
private static extern bool SetForegroundWindow(IntPtr hwnd);

C#

[DllImport("user32.dll")]
private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

and then you might just send data like

C#

SendKeys.SendWait("{TAB}");
SendKeys.SendWait("{TAB}");
SendKeys.SendWait("{ENTER}");

Or even more with help of

SendMessage(_hWnd, 0x100, (int) VKeys.VK_2, (int) VKeys.VK_2);

you can achive better result