Accessing other programs

I am trying to write a program that will automatically enter text into a textbox and then click on a button. The problem is that both the textbox and the button are on a separate form in an unrelated program, which will be running at the same time as my program. I do not have access to the second program's code, so I cannot integrate it into my project or solution.

Is there any way I can do this?

Thank you, Robby

Edit: The second program is made so that pressing the Enter key while focused on the textbox is equivalent to clicking on the button. I don't know whether or not this is useful information.

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Originally Posted by gorcq

I am trying to write a program that will automatically enter text into a textbox and then click on a button. The problem is that both the textbox and the button are on a separate form in an unrelated program, which will be running at the same time as my program. I do not have access to the second program's code, so I cannot integrate it into my project or solution.

Is there any way I can do this?

Thank you, Robby

Edit: The second program is made so that pressing the Enter key while focused on the textbox is equivalent to clicking on the button. I don't know whether or not this is useful information.

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SendKeys can send keystrokes to an app. (Note, you can make Macro software to monitor the mouse strokes and possitions then replay, I made a RuneScape in the old days of Runescape in VB6.) I assume you could still do the same in .NET

Thank you. That is exactly what I was looking for. However, I cannot seem to make it select the right textbox on the other form. Is there any way to do that?
Robby

You might have more luck posting this in the API section. There are API calls you can use to send text to a textbox using SendMessage API's. Theres also ways of enumerating the windows using EnumWins, FindWindowEX, etc. in order to find the control you need to send to.