public static DWM_TIMING_INFO?DwmGetCompositionTimingInfo(IntPtr hwnd)
{
if (!Utility.IsOSVistaOrNewer)
{
return(null);
}
DWM_TIMING_INFO value = new DWM_TIMING_INFO
{
cbSize = Marshal.SizeOf(typeof(DWM_TIMING_INFO))
};
HRESULT hrLeft = NativeMethods._DwmGetCompositionTimingInfo(hwnd, ref value);
if (hrLeft == HRESULT.E_PENDING)
{
return(null);
}
hrLeft.ThrowIfFailed();
return(new DWM_TIMING_INFO?(value));
}
public static DWM_TIMING_INFO?DwmGetCompositionTimingInfo(IntPtr hwnd)
{
DWM_TIMING_INFO?nullable;
if (!Utility.IsOSVistaOrNewer)
{
nullable = null;
return(nullable);
}
DWM_TIMING_INFO dWMTIMINGINFO = new DWM_TIMING_INFO()
{
cbSize = Marshal.SizeOf(typeof(DWM_TIMING_INFO))
};
DWM_TIMING_INFO dWMTIMINGINFO1 = dWMTIMINGINFO;
HRESULT hRESULT = Standard.NativeMethods.DwmGetCompositionTimingInfo_1(hwnd, ref dWMTIMINGINFO1);
if (hRESULT == HRESULT.E_PENDING)
{
nullable = null;
return(nullable);
}
hRESULT.ThrowIfFailed();
return(new DWM_TIMING_INFO?(dWMTIMINGINFO1));
}
public static DWM_TIMING_INFO? DwmGetCompositionTimingInfo(IntPtr hwnd)
{
if (!Utility.IsOSVistaOrNewer)
{
// API was new to Vista.
return null;
}
var dti = new DWM_TIMING_INFO { cbSize = Marshal.SizeOf(typeof(DWM_TIMING_INFO)) };
HRESULT hr = _DwmGetCompositionTimingInfo(hwnd, ref dti);
if (hr == HRESULT.E_PENDING)
{
// The system isn't yet ready to respond. Return null rather than throw.
return null;
}
hr.ThrowIfFailed();
return dti;
}
private static extern HRESULT _DwmGetCompositionTimingInfo(IntPtr hwnd, ref DWM_TIMING_INFO pTimingInfo);
private static extern HRESULT _DwmGetCompositionTimingInfo(IntPtr hwnd, ref DWM_TIMING_INFO pTimingInfo);