Keyboard class lack features

rgb

Problem


print(Keyboard.IsKeyDown(Key.RightShift), Keyboard.IsKeyDown(Key.LeftShift), Keyboard.ShiftDown)

work only in KeyDown and KeyUp event

Suppose you want create a tools for moving object graphics, image listbox
we need know the keyboard state in event mouse.

Proposed Solution

Add support Keyboard class in MouseDown,MouseUp,MouseMoved events

Example Workflow

Alternatives Considered

Who Would This Help?

Garry

Thanks, this makes sense.

I’ve implemented this for the next release: https://feedback.objo.dev/feature/457

Keyboard now works during mouse/pointer events such as MouseDown(), MouseUp(), MouseMove(), MouseDrag(), MouseWheel(), MouseEnter(), and MouseExit().

The main intended use is:

# E.g. in a `Canvas.MouseDrag()` event

    If Keyboard.ShiftDown Then
        # Constrain movement, extend selection, etc.
    End If
End Sub

The aggregate modifier properties are the reliable way to use this in mouse handlers:

Keyboard.ShiftDown
Keyboard.ControlDown
Keyboard.AltDown
Keyboard.CommandDown

Physical left/right checks such as Keyboard.IsKeyDown(Key.LeftShift) are still best effort during mouse events. They work if the app has already seen that physical key go down, but mouse events from the OS usually only report aggregate modifier state.