InputKeyboardSource.SystemKeyDown Event

// Register
event_token SystemKeyDown(TypedEventHandler<InputKeyboardSource, KeyEventArgs const&> const& handler) const;

// Revoke with event_token
void SystemKeyDown(event_token const* cookie) const;

// Revoke with event_revoker
InputKeyboardSource::SystemKeyDown_revoker SystemKeyDown(auto_revoke_t, TypedEventHandler<InputKeyboardSource, KeyEventArgs const&> const& handler) const;

public event TypedEventHandler<InputKeyboardSource,KeyEventArgs> SystemKeyDown;

function onSystemKeyDown(eventArgs) { /* Your code */ }
inputKeyboardSource.addEventListener("systemkeydown", onSystemKeyDown);
inputKeyboardSource.removeEventListener("systemkeydown", onSystemKeyDown);
- or -
inputKeyboardSource.onsystemkeydown = onSystemKeyDown;

Public Custom Event SystemKeyDown As TypedEventHandler(Of InputKeyboardSource, KeyEventArgs) 

Event Type

Remarks

Apps do not receive this event when an Input Method Editor (IME) is enabled. The Input Method Editor (IME) handles all keyboard input and sets Handled to true.

Applies to

See also

• SystemKeyUp
• KeyUp
• SystemKeyDown