/// <summary>
/// Handles window messages.
/// </summary>
/// <param name="hwnd">The window handle</param>
/// <param name="msg">The message ID</param>
/// <param name="wParam">The message's wParam value</param>
/// <param name="lParam">The message's lParam value</param>
/// <param name="handled">Whether the message was handled</param>
/// <returns>Return value depending on the particular message</returns>
/// <remarks>This is an implementation of System.Windows.Interop.HwndSourceHook.</remarks>
protected override IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
switch (msg)
{
case (int)WindowMessage.WM_ACTIVATE:
switch (wParam.ToInt32())
{
case NativeMethod.WA_ACTIVE:
case NativeMethod.WA_CLICKACTIVE:
WindowActivatedChanged?.Invoke(this, true); // Activated.
break;
case NativeMethod.WA_INACTIVE:
WindowActivatedChanged?.Invoke(this, false); // Deactivated.
break;
}
break;
case (int)WindowMessage.WM_DWMCOLORIZATIONCOLORCHANGED:
DwmColorizationColorChanged?.Invoke(this, EventArgs.Empty);
break;
}
return(base.WndProc(hwnd, msg, wParam, lParam, ref handled));
}
/// <summary>
/// Handles window messages.
/// </summary>
/// <param name="hwnd">The window handle</param>
/// <param name="msg">The message ID</param>
/// <param name="wParam">The message's wParam value</param>
/// <param name="lParam">The message's lParam value</param>
/// <param name="handled">Whether the message was handled</param>
/// <returns>Return value depending on the particular message</returns>
/// <remarks>This is an implementation of System.Windows.Interop.HwndSourceHook.</remarks>
protected override IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
switch (msg)
{
case WindowMessage.WM_DWMCOLORIZATIONCOLORCHANGED:
DwmColorizationColorChanged?.Invoke(this, EventArgs.Empty);
break;
}
return(base.WndProc(hwnd, msg, wParam, lParam, ref handled));
}
private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
if (msg == WM_DWMCOLORIZATIONCOLORCHANGED)
{
handled = true;
try
{
DwmColorizationColorChanged?.Invoke(GetWindowColorizationColor());
}
catch
{
// Ignore all exceptions.
}
}
handled = false;
return(IntPtr.Zero);
}