public static bool GetBool(NativeMethods.SPI parameter)
{
var value = IntPtr.Zero;
if (!NativeMethods.SystemParametersInfo(parameter, 0, ref value, SystemParametersInfoBehaviors.None))
{
throw User32Api.CreateWin32Exception(nameof(User32Api.SystemParametersInfo));
}
return(value != IntPtr.Zero);
}
public static void SetBool(NativeMethods.SPI parameter, bool value)
{
// TODO: Log changed system settings
var _ = IntPtr.Zero;
if (!NativeMethods.SystemParametersInfo(parameter, (uint)(value ? 1 : 0), ref _, SystemParametersInfoBehaviors.None))
{
throw User32Api.CreateWin32Exception(nameof(User32Api.SystemParametersInfo));
}
}
/// <summary>
/// Helper method to create an exception that might explain what is wrong while capturing
/// </summary>
/// <param name="method">string with current method</param>
/// <param name="captureBounds">NativeRect of what we want to capture</param>
/// <returns></returns>
private static Exception CreateCaptureException(string method, NativeRect captureBounds)
{
var exceptionToThrow = User32Api.CreateWin32Exception(method);
if (!captureBounds.IsEmpty)
{
exceptionToThrow.Data.Add("Height", captureBounds.Height);
exceptionToThrow.Data.Add("Width", captureBounds.Width);
}
return(exceptionToThrow);
}
/// <summary>
/// Default constructor, this opens the input destop with GENERIC_ALL
/// This is needed to support marshalling!!
/// </summary>
public SafeCurrentInputDesktopHandle() : base(true)
{
var hDesktop = User32Api.OpenInputDesktop(0, true, DesktopAccessRight.GENERIC_ALL);
if (hDesktop != IntPtr.Zero)
{
// Got desktop, store it as handle for the ReleaseHandle
SetHandle(hDesktop);
if (User32Api.SetThreadDesktop(hDesktop))
{
Log.Debug().WriteLine("Switched to desktop {0}", hDesktop);
}
else
{
Log.Warn().WriteLine("Couldn't switch to desktop {0}", hDesktop);
Log.Error().WriteLine(User32Api.CreateWin32Exception("SetThreadDesktop"));
}
}
else
{
Log.Warn().WriteLine("Couldn't get current desktop.");
Log.Error().WriteLine(User32Api.CreateWin32Exception("OpenInputDesktop"));
}
}
