CODEWITHSUNDEEP
c#
Darren Ng
Darren Ng

Reputation: 373

Manipulating window created by process

I'm quite new to C# and is faced with an issue. I wish to manipulate a window (resize, move) that I dynamically created through:

Process app = new Process();
app.StartInfo.FileName = "notepad.exe";   //just an example,
app.Start();                              //it will be more than just notepad

I understand that I can get the handle by app.MainWindowHandle but I can't obtain the form by Control.FromHandle(app.MainWindowHandle). Hence, I can't set the new location nor size of this notepad.

Any idea on how do I manipulate the window then? Thanks in advance!

Upvotes: 4

Views: 1437

Answers (1)

Avner Shahar-Kashtan
Avner Shahar-Kashtan

Reputation: 14700

Notepad is a Win32 application, not a .NET Form. That's why you can't get a Control from it - it's not a control!

What you CAN do with the window handle is pass it along to Win32 functions that can manipulate Win32 windows. There's a whole host of them such as SetWindowPos to set window location (and see this SO question on using it from C#).

See more reference on Window functions on MSDN, and use PInvoke.net as reference for calling these Win32 methods from C#.

Upvotes: 4

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