/// <summary>
/// Gets the specified window attribute from the Desktop Window Manager (DWM).
/// </summary>
/// <typeparam name="T">Return type. Must match the attribute.</typeparam>
/// <param name="window">The window.</param>
/// <param name="attribute">The attribute.</param>
/// <returns>Value of the windows attribute.</returns>
public static T GetWindowAttribute <T>(this IWin32Window window, GetWindowAttr attribute) where T : struct
{
if (window == null)
{
throw new ArgumentNullException(nameof(window));
}
using (var ptr = System.Runtime.InteropServices.SafeHGlobalHandle.AllocHGlobal <T>())
{
NativeMethods.DwmGetWindowAttribute(window.Handle, (NativeMethods.DWMWINDOWATTRIBUTE)attribute, ptr, ptr.Size);
return(ptr.ToStructure <T>());
}
}
/// <summary>
/// Gets the specified window attribute from the Desktop Window Manager (DWM).
/// </summary>
/// <typeparam name="T">Return type. Must match the attribute.</typeparam>
/// <param name="window">The window.</param>
/// <param name="attribute">The attribute.</param>
/// <returns>Value of the windows attribute.</returns>
public static T GetWindowAttribute <T>(this IWin32Window window, GetWindowAttr attribute) where T : struct
{
if (window == null)
{
throw new ArgumentNullException(nameof(window));
}
using (var ptr = SafeCoTaskMemHandle.AllocCoTaskMem <T>())
{
DwmGetWindowAttribute(window.Handle, (DWMWINDOWATTRIBUTE)attribute, (IntPtr)ptr, ptr.Size);
return(ptr.ToStructure <T>());
}
}
