public static bool ScriptGetFontProperties(System.Drawing.Font font, out Uniscribe.SCRIPT_FONTPROPERTIES sfp)
{
sfp = new Uniscribe.SCRIPT_FONTPROPERTIES();
if (font == null)
{
return(false);
}
// HFONT hfont = initialize your font;
IntPtr hfont = font.ToHfont();
IntPtr psc = IntPtr.Zero; // Initialize to NULL, will be filled lazily.
IntPtr hdcSrc = IntPtr.Zero;
IntPtr HDC = IntPtr.Zero; // Don't give it a DC unless we have to.
// HFONT old_font = NULL;
IntPtr old_font = IntPtr.Zero;
uint res = 0;
sfp = new Uniscribe.SCRIPT_FONTPROPERTIES();
sfp.cBytes = Marshal.SizeOf(typeof(Uniscribe.SCRIPT_FONTPROPERTIES));
for (int i = 0; i < 2; i++)
{
try
{
res = 0;
res = Uniscribe.ScriptGetFontProperties(HDC, ref psc, ref sfp);
if (res != 0)
{
if (res == Win32.E_PENDING)
{
throw new ArgumentException();
}
else
{
throw new Exception(); // Some kind of error.
}
}
break;
}
catch (ArgumentException)
{
// ... select font into hdc ...
hdcSrc = Win32.GetDC(IntPtr.Zero);
HDC = Win32.CreateCompatibleDC(hdcSrc);
old_font = Win32.SelectObject(HDC, hfont);
// Loop again...
continue;
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
break;
}
}
if (old_font != IntPtr.Zero)
{
Win32.SelectObject(HDC, old_font); // Put back the previous font.
}
Win32.ReleaseDC(IntPtr.Zero, HDC);
Win32.ReleaseDC(IntPtr.Zero, hdcSrc);
// Need to tell Uniscribe to delete the cache we were using. If you are going
// to keep the HFONT around, you should probably also keep the cache.
// ScriptFreeCache(psc);
Win32.DeleteObject(hfont);
return(res == 0);
}
public static bool ScriptGetCMap(string str, System.Drawing.Font font, Uniscribe.SCRIPT_FONTPROPERTIES sfp)
{
if (font == null)
{
return(false);
}
uint res = 0;
// HFONT hfont = initialize your font;
IntPtr hfont = font.ToHfont();
IntPtr psc = IntPtr.Zero; // Initialize to NULL, will be filled lazily.
IntPtr hdcSrc = IntPtr.Zero;
IntPtr HDC = IntPtr.Zero; // Don't give it a DC unless we have to.
// HFONT old_font = NULL;
IntPtr old_font = IntPtr.Zero;
ushort[] pwOutGlyphs = new ushort[str.Length];
for (int max = 1000; max > 0; --max)
{
try
{
res = 0;
res = Uniscribe.ScriptGetCMap(HDC, ref psc, str, str.Length, 0, pwOutGlyphs);
if (res != 0)
{
// Different types of failure...
if (res == Win32.E_PENDING)
{
// Need to select the font for the call. Don't do this if we don't have to
// since it may be slow.
throw new ArgumentException();
}
if (res == Win32.E_HANDLE)
{
// The font or the operating system does not support glyph indexes.
throw new Exception();
}
else if (res == Win32.S_FALSE)
{
// Some of the Unicode code points were mapped to the default glyph.
throw new Exception();
}
}
// call ScriptGetFontProperties
int defaultGlyph = sfp.wgDefault;
for (int i = 0; i < str.Length; i++)
{
if (pwOutGlyphs[i] == defaultGlyph)
{
// character with that index is not available in selected font
}
}
break;
}
catch (ArgumentException)
{
// ... select font into hdc ...
hdcSrc = Win32.GetDC(IntPtr.Zero);
HDC = Win32.CreateCompatibleDC(hdcSrc);
old_font = Win32.SelectObject(HDC, hfont);
// Loop again...
continue;
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
break;
}
}
if (old_font != IntPtr.Zero)
{
Win32.SelectObject(HDC, old_font); // Put back the previous font.
}
Win32.ReleaseDC(IntPtr.Zero, HDC);
Win32.ReleaseDC(IntPtr.Zero, hdcSrc);
// Need to tell Uniscribe to delete the cache we were using. If you are going
// to keep the HFONT around, you should probably also keep the cache.
// ScriptFreeCache(psc);
Win32.DeleteObject(hfont);
return(res == 0);
}
