How To Check State of CapsLock Button with C# in Windows Store (WinRT) Application

Question

I'm trying to put a flyout warning if CapsLock button is On while typing something in PasswordBox.

I'm NOT trying to find out if the pressed key is CapsLock

I checked out the old,

KeyboardDevice .NET 3.5

Control.IsKeyLocked() Windows Forms

Console.CapsLock Not Available in Windows 8.1 Store Application

Keyboard.GetKeyStates Not Available in Windows 8.1 Store Application

and WinApi Style calls.

None of them seems suitable, Anyone has a suggestion

Answer 1

Try CoreWindow.GetAsyncKeyState with a value of VirtualKey.CapitalLock.

You can get the current CoreWindow with CoreWindow.GetForCurrentThread.

Additionally, you can subscribe to the CoreWindow.KeyDown and CoreWindow.KeyUp events to update your key status indicator.