private static bool EnumTheWindows(IntPtr hWnd, IntPtr lParam)
{
int windowNameSize = WindowsFunctions.GetWindowTextLength(hWnd);
if (hWnd == WindowsFunctions.GetShellWindow())
{
return(true);
}
if (windowNameSize == 0)
{
return(true);
}
if (!WindowsFunctions.IsWindowVisible(hWnd))
{
return(true);
}
StringBuilder sb = new StringBuilder(windowNameSize + 1);
WindowsFunctions.GetWindowText(hWnd, sb, windowNameSize + 1);
ActiveWindows.Add(sb.ToString(), hWnd);
return(true);
}
/// <summary>
/// Unregisters a hot key. If it fails, it will throw a <see cref="HotKeyException"/>
/// </summary>
/// <exception cref="HotKeyException">If hotKey removal failed</exception>
public void UnregisterHotKey()
{
if (!WindowsFunctions.UnregisterHotKey(IntPtr.Zero, Id))
{
ErrorMsg = new Win32Exception(Marshal.GetLastWin32Error()).Message;
throw new HotKeyException(ErrorMsg);
}
}
/// <summary>
/// Register a hot key. If the registration was successful it will return a <see cref="HotKey" /> object.
/// If registration was unsuccessful it will throw a <see cref="HotKeyException" />.
/// </summary>
/// <param name="hWnd">Window Handle.</param>
/// <param name="key">The key.</param>
/// <param name="modifiers">The modifiers.</param>
/// <param name="id">The identifier.</param>
/// <returns></returns>
/// <exception cref="HotKeyException">If hotKey registration failed</exception>
public static HotKey RegisterHotKey(IntPtr hWnd, VirtualKeys key, Modifiers modifiers, int id)
{
if (!WindowsFunctions.RegisterHotKey(hWnd, id, (uint)modifiers, (uint)key))
{
throw new HotKeyException(new Win32Exception(Marshal.GetLastWin32Error()).Message);
}
return(new HotKey(key, id));
}
/// <summary>
/// Dispose unmanaged resources
/// </summary>
/// <param name="disposing"></param>
protected virtual void Dispose(bool disposing)
{
if (_disposed)
{
return;
}
if (disposing)
{
//dispose managed resources
}
//dispose unmanaged resources
WindowsFunctions.UnregisterHotKey(IntPtr.Zero, Id);
_disposed = true;
}
private static void UpdateDictionary()
{
ActiveWindows.Clear();
WindowsFunctions.EnumWindows(EnumTheWindows, IntPtr.Zero);
}
