/// <summary>
/// Indicates whether a <see cref="Hotkey"/> has been bound already either
/// by this application or another application.
/// </summary>
/// <param name="hotkeyCombo">
/// The <see cref="Hotkey"/> to evaluate.
/// </param>
/// <returns>
/// <c>true</c> if the <see cref="Hotkey"/> has not been previously bound
/// and is available to be bound; otherwise, <c>false</c>.
/// </returns>
public bool IsHotkeyAlreadyBound(Hotkey hotkeyCombo)
{
bool successful =
NativeMethods.RegisterHotKey(
hotkeyWindow.Handle,
hotkeyCombo.GetHashCode(),
(uint)hotkeyCombo.Modifier,
(uint)hotkeyCombo.Key);
if (!successful)
return true;
NativeMethods.UnregisterHotKey(
hotkeyWindow.Handle,
hotkeyCombo.GetHashCode());
return false;
}
private void UnregisterHotkey(Hotkey hotkeyCombo)
{
bool successful =
NativeMethods.UnregisterHotKey(
hotkeyWindow.Handle,
hotkeyCombo.GetHashCode());
if (!successful)
throw new HotkeyNotBoundException(Marshal.GetLastWin32Error());
}
private void RegisterHotkey(Hotkey hotkeyCombo)
{
bool successful =
NativeMethods.RegisterHotKey(
hotkeyWindow.Handle,
hotkeyCombo.GetHashCode(),
(uint)hotkeyCombo.Modifier,
(uint)hotkeyCombo.Key);
if (!successful)
throw new Win32Exception(Marshal.GetLastWin32Error());
}