Interaction between two differentapplication

The easiest way is to use SendKeys.Send:

http://msdn.microsoft.com/en-us/library/system.windows.forms.sendkeys.send(v=vs.110).aspx

You first need to force the input focus onto the 'Receiver' application.

You then need to send the appropriate keystrokes to change the focus to the textbox and to send the text itself.

The code to do all this would be on the following lines:

using System.Diagnostics;

using System.Runtime.InteropServices;

// within Form class of 'Sender' application

[DllImport("user32.dll")]

private static extern bool SetForegroundWindow(IntPtr hWnd);

// within some method of that Form

Process[] procs = Process.GetProcessesByName("notepad"); // or whatever

if (procs.Count > 0)

{

IntPtr hWnd = procs[0].MainWindowHandle;

SetForegroundWindow(hWnd);

SendKeys.Send(someString);

}

2 Replies

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Selva Ganapathy12y ago
Accepted answer
Hi Jegan Priya,

Refer this article http://www.c-sharpcorner.com/UploadFile/6f0898/simple-way-to-establish-interaction-between-two-visual-studi/

Regards,
Selva Ganapathy K
Vulpes12y ago
The easiest way is to use SendKeys.Send:

http://msdn.microsoft.com/en-us/library/system.windows.forms.sendkeys.send(v=vs.110).aspx

You first need to force the input focus onto the 'Receiver' application.

You then need to send the appropriate keystrokes to change the focus to the textbox and to send the text itself.

The code to do all this would be on the following lines:

using System.Diagnostics;
using System.Runtime.InteropServices;

// within Form class of 'Sender' application

[DllImport("user32.dll")]
private static extern bool SetForegroundWindow(IntPtr hWnd);

// within some method of that Form

Process[] procs = Process.GetProcessesByName("notepad"); // or whatever
if (procs.Count > 0)
{
IntPtr hWnd = procs[0].MainWindowHandle;
SetForegroundWindow(hWnd);
SendKeys.Send(someString);
}