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); }