Findwindow C# winform app

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findwindow: I said findwindow a find VALORANT window, but even anywhere it triggers events under findwindow, I want it to run only in VALORANT window

What I have tried:

int hwnd = FindWindow("VALORANT", null);
                SetForegroundWindow(hwnd);
                SendKeys.SendWait("+{ENTER}gg{ENTER}");

but work any window

Posted 17-Aug-21 2:50am

Muhammed Yeter

Updated 17-Aug-21 2:55am

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Maciej Los 17-Aug-21 9:01am

Do you want to find a window of your apllication? If yes, then you have to loop through the collection of Application.OpenForms Property (System.Windows.Forms) | Microsoft Docs[^]

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Richard Deeming · Answer 1 · 2021-08-17T02:55:00

Solution 1

You're not checking the value returned from FindWindow, which could be 0 if the window was not found.

Also, FindWindow returns a handle, which needs to be declared as IntPtr, not int. So I suspect your P/Invoke declarations are wrong.

Posted 17-Aug-21 2:55am

Richard Deeming

Comments

Maciej Los 17-Aug-21 8:58am

5ed!

Muhammed Yeter 17-Aug-21 9:09am

yes not find the window , but window already open , why not find window?? (sry, i not know winform and fnidwindow)

Richard Deeming 17-Aug-21 9:11am

As I said, your P/Invoke declarations are wrong.

Beyond that, we have no way of telling. Are you sure the window class name is "VALORANT", and you're not looking for the window title instead?

Muhammed Yeter 17-Aug-21 9:20am

yes i want find the window title "VALORANT", but not find i test this, meessagebox.show(hwnd.tostring()); and messagebox says 0 :(

Richard Deeming 17-Aug-21 9:23am

Well there's your problem then!

The first parameter to FindWindow is the class name. If you want to find the window by title, swap the parameters around:

IntPtr hwnd = FindWindow(null, "VALORANT");

FindWindowA function (winuser.h) - Win32 apps | Microsoft Docs[^]