////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Sets window styles by logical or'ing them in with the existing values. </summary>
///
/// <param name="windowHandle"> Handle of the window. </param>
/// <param name="index"> Zero-based index of the. </param>
/// <param name="styles"> The styles. </param>
////////////////////////////////////////////////////////////////////////////////////////////////////
internal static void SetWindowStyles(IntPtr windowHandle, int index, WindowStyles styles)
{
var desiredStyle = new IntPtr(unchecked ((int)styles));
var success = IntPtr.Zero != PlatformSafe.SetWindow(windowHandle, index, desiredStyle);
WriteLineIf(!success, LastWin32ErrorMessage);
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary> Clears the window styles. </summary>
///
/// <param name="windowHandle"> Handle of the window. </param>
/// <param name="index"> Zero-based index of the. </param>
/// <param name="styles"> The styles. </param>
///
/// <returns> True if it succeeds, false if it fails. </returns>
////////////////////////////////////////////////////////////////////////////////////////////////////
internal static bool ClearWindowStyles(IntPtr windowHandle, int index, WindowStyles styles)
{
var desiredStyle = PlatformSafe.GetWindow(windowHandle, index);
WriteLineIf(GetLastWin32ErrorMessage(out var msg), msg);
desiredStyle = IntPtr.Size == 4
? new IntPtr(unchecked (desiredStyle.ToInt32() & ~(int)styles))
: new IntPtr(unchecked (desiredStyle.ToInt64() & ~(int)styles));
var success = IntPtr.Zero != PlatformSafe.SetWindow(windowHandle, index, desiredStyle);
WriteLineIf(!success, LastWin32ErrorMessage);
return(success);
}