public void SystemParametersInfoW_check_fonts()
{
NONCLIENTMETRICSW data = default;
bool result = SystemParametersInfoW(ref data);
Assert.True(result);
Font captionFont = Font.FromLogFont(data.lfCaptionFont);
AreEqual(SystemFonts.CaptionFont !, captionFont);
Font menuFont = Font.FromLogFont(data.lfMenuFont);
AreEqual(SystemFonts.CaptionFont !, menuFont);
Font messageFont = Font.FromLogFont(data.lfMessageFont);
AreEqual(SystemFonts.MessageBoxFont !, messageFont);
Font smCaptionFont = Font.FromLogFont(data.lfSmCaptionFont);
AreEqual(SystemFonts.SmallCaptionFont !, smCaptionFont);
Font statusFont = Font.FromLogFont(data.lfStatusFont);
AreEqual(SystemFonts.StatusFont !, statusFont);
public unsafe static bool SystemParametersInfoW(ref NONCLIENTMETRICSW metrics)
{
fixed(void *p = &metrics)
{
metrics.cbSize = (uint)sizeof(NONCLIENTMETRICSW);
return(SystemParametersInfoW(
SPI.GETNONCLIENTMETRICS,
metrics.cbSize,
p,
0)); // This has no meaning when getting values
}
}
public static Font CreateSystemUIFont()
{
using (StructureBuffer <NONCLIENTMETRICSW> metricsPtr = new StructureBuffer <NONCLIENTMETRICSW>())
{
const int SPI_GETNONCLIENTMETRICS = 0x29;
NONCLIENTMETRICSW metrics = new NONCLIENTMETRICSW();
metrics.cbSize = Marshal.SizeOf <NONCLIENTMETRICSW>();
metricsPtr.Value = metrics;
NativeMethods.SystemParametersInfoW(SPI_GETNONCLIENTMETRICS, metricsPtr.Size, metricsPtr.Handle, 0);
return(new Font(metricsPtr.Value.lfMessageFont));
}
}
/// <summary>
/// Tries to get system parameter info for the dpi. dpi is ignored if "SystemParametersInfoForDpi()" API is not available on the OS that this application is running.
/// </summary>
public unsafe static bool TrySystemParametersInfoForDpi(ref NONCLIENTMETRICSW metrics, uint dpi)
{
if (OsVersion.IsWindows10_1607OrGreater)
{
metrics.cbSize = (uint)sizeof(NONCLIENTMETRICSW);
return(SystemParametersInfoForDpi(
SPI.GETNONCLIENTMETRICS,
metrics.cbSize,
ref metrics,
0,
dpi));
}
return(SystemParametersInfoW(ref metrics));
}
public static extern bool SystemParametersInfoForDpi(
SPI uiAction,
uint uiParam,
ref NONCLIENTMETRICSW pvParam,
uint fWinIni,
uint dpi);
