C# Help (Raw Input)

Question

C# Help (Raw Input)

itdimk ^^ 1

Hi!
A function "RegisterRawInputDevices(RawInputDeviceRegistration[] pRawInputDevices, uint uiNumDevices, uint cbSize)" from user32.dll blocks the main GUI thread.
Is there a way to keep GUI active?

Repo is here: https://github.com/itdimk/NativeWindowPlay

There's a function "Register Devices" inside class "MacroRecorder".
Internally, it calls RawInputDevice.RegisterDevice which calls RegisterRawInputDevices from user32.dll.
Problem is, after that call GUI got completely blocked.

I tried to call it in a new thread but it doesnt help :c

Hui Liu-MSFT 48,706 Microsoft External Staff

Hi,@ itdimk-9267. Welcome Microsoft Q&A. I tried the following method and the method here. Neither prevents the effect of freezing/blocking the GUI. Is it a problem with the method of getting the Mouse?

        private void ButtonBase_OnClick(object sender, RoutedEventArgs e)  
        {  
            Function();  
            btn.Background = Brushes.Red;  
        }  
        private void WorkFunction(object sender, DoWorkEventArgs doWorkEventArgs)  
        {  
            var window = new RawInputReceiverWindow();  
            var app = new MacroRecorderApp(window);  
            app.Run();  
        }

The result :

Your answer

Hui Liu-MSFT 48,706 Reputation points Microsoft External Staff

2022-11-15T06:52:50.693+00:00

Hi,@ itdimk-9267. Welcome Microsoft Q&A. I tried the following method and the method here. Neither prevents the effect of freezing/blocking the GUI. Is it a problem with the method of getting the Mouse?

private void ButtonBase_OnClick(object sender, RoutedEventArgs e) { Function(); btn.Background = Brushes.Red; } private void WorkFunction(object sender, DoWorkEventArgs doWorkEventArgs) { var window = new RawInputReceiverWindow(); var app = new MacroRecorderApp(window); app.Run(); }

The result :

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C# Help (Raw Input)

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