/// <include file='doc\Font.uex' path='docs/doc[@for="Font.FromLogFont1"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public static Font FromLogFont(object lf, IntPtr hdc)
{
IntSecurity.ObjectFromWin32Handle.Demand();
IntPtr font = IntPtr.Zero;
int status;
if (Marshal.SystemDefaultCharSize == 1)
{
status = SafeNativeMethods.GdipCreateFontFromLogfontA(new HandleRef(null, hdc), lf, out font);
}
else
{
status = SafeNativeMethods.GdipCreateFontFromLogfontW(new HandleRef(null, hdc), lf, out font);
}
// Special case this incredibly common error message to give more information
if (status == SafeNativeMethods.NotTrueTypeFont)
{
throw new ArgumentException(SR.GetString(SR.GdiplusNotTrueTypeFont_NoName));
}
else if (status != SafeNativeMethods.Ok)
{
throw SafeNativeMethods.StatusException(status);
}
// GDI+ returns font = 0 even though the status is Ok.
if (font == IntPtr.Zero)
{
throw new ArgumentException("GDI+ does not handle non True-type fonts: " + lf.ToString());
}
bool gdiVerticalFont;
if (Marshal.SystemDefaultCharSize == 1)
{
gdiVerticalFont = (Marshal.ReadByte(lf, LogFontNameOffset) == (byte)(short)'@');
}
else
{
gdiVerticalFont = (Marshal.ReadInt16(lf, LogFontNameOffset) == (short)'@');
}
return(new Font(font, Marshal.ReadByte(lf, LogFontCharSetOffset), gdiVerticalFont));
}
