InputKeyboardSource.SystemKeyDown Event
Definition
Important
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Occurs when the user presses a key when the ALT key is also pressed.
// 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.