private static bool callScriptTextOutForItem(IntPtr HDC, IntPtr psc, int x, int y, uint fuOptions, Win32.RECT lprc,
Uniscribe.SCRIPT_ANALYSIS psa, string pwcReserved, int iReserved,
ushort[] pwGlyphs, int cGlyphs,
int[] piAdvance, int[] piJustify, Uniscribe.GOFFSET[] pGoffset)
{
uint res = 0;
try
{
res = 0;
res = Uniscribe.ScriptTextOut(HDC, ref psc, /*x*/ 0, /*y*/ 0, /*fuOptions*/ 0,
/*lprc*/ null, psa, /*pwcReserved*/ IntPtr.Zero, /*iReserved*/ 0,
pwGlyphs, cGlyphs, piAdvance, piJustify, pGoffset);
if (res != 0)
{
}
}
catch (System.Exception)
{
}
return(res == 0);
}
public static bool ScriptPlace(System.Drawing.Font font, Uniscribe.SCRIPT_ITEM[] items,
List <ushort[]> pwGlyphs, List <int> cGlyphs, List <Uniscribe.SCRIPT_VISATTR[]> psva,
out List <int[]> piAdvanceArray, out List <Uniscribe.GOFFSET[]> pGoffsetArray, out List <Uniscribe.ABC> pABCArray)
{
piAdvanceArray = new List <int[]>();
pGoffsetArray = new List <Uniscribe.GOFFSET[]>();
pABCArray = new List <Uniscribe.ABC>();
if (font == null)
{
return(false);
}
bool res = false;
// HFONT hfont = initialize your font;
IntPtr hfont = font.ToHfont();
IntPtr psc = IntPtr.Zero; // Initialize to NULL, will be filled lazily.
// Don't use the last item because it is a dummy that points
// to the end of the string.
for (int i = 0; i < items.Length - 1; i++)
{
int[] piAdvance;
Uniscribe.GOFFSET[] pGoffset;
Uniscribe.ABC pABC;
Uniscribe.SCRIPT_ANALYSIS sa = items[i].a;
res = callScriptPlaceForItem(ref hfont, ref psc, pwGlyphs[i], cGlyphs[i], psva[i], ref sa, out piAdvance, out pGoffset, out pABC);
if (res)
{
items[i].a = sa;
piAdvanceArray.Add(piAdvance);
pGoffsetArray.Add(pGoffset);
pABCArray.Add(pABC);
}
}
// 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);
}
public static bool ScriptBreakForItem(string input, int input_length, Uniscribe.SCRIPT_ANALYSIS psa,
out Uniscribe.SCRIPT_LOGATTR[] psla)
{
psla = new Uniscribe.SCRIPT_LOGATTR[input_length];
uint res = 0;
try
{
res = 0;
res = Uniscribe.ScriptBreak(input, input_length, psa, psla);
if (res != 0)
{
psla = null;
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
return(res == 0);
}
private static bool callScriptPlaceForItem(ref IntPtr hfont, ref IntPtr psc,
ushort[] pwGlyphs, int cGlyphs, Uniscribe.SCRIPT_VISATTR[] psva,
ref Uniscribe.SCRIPT_ANALYSIS psa,
out int[] piAdvance, out Uniscribe.GOFFSET[] pGoffset, out Uniscribe.ABC pABC)
{
// All arrays are in visual order unless the fLogicalOrder member is set
// in the SCRIPT_ANALYSIS structure indicated by the psa parameter.
psa.fLogicalOrder = true;
piAdvance = new int[cGlyphs];
pGoffset = new Uniscribe.GOFFSET[cGlyphs];
pABC = new Uniscribe.ABC();
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;
//while (true)
for (int max = 1000; max > 0; --max)
{
try
{
res = 0;
res = Uniscribe.ScriptPlace(HDC, ref psc, pwGlyphs, cGlyphs, psva, ref psa, piAdvance, pGoffset, ref pABC);
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();
}
else
{
throw new Exception(); // Some other failure.
}
}
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);
return(res == 0);
}
// Called with the array output by callScriptItemize, this will
private static bool callScriptShapeForItem(string input, int input_length, // IN: characters
ref IntPtr hfont, ref IntPtr psc, // IN: font info
Uniscribe.SCRIPT_ANALYSIS sa, // IN: from ScriptItemize
out ushort[] pwOutGlyphs, // OUT: one per glyph
out ushort[] pwLogClust, // OUT: one per character
out Uniscribe.SCRIPT_VISATTR[] psva) // OUT: one per glyph
{
// Initial size guess for the number of glyphs recommended by Uniscribe
int cMaxGlyphs = input_length * 3 / 2 + 16;
pwOutGlyphs = new ushort[cMaxGlyphs];
psva = new Uniscribe.SCRIPT_VISATTR[cMaxGlyphs];
// The logs array is the same size as the input.
pwLogClust = new ushort[input_length];
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;
//while (true)
for (int max = 1000; max > 0; --max)
{
try
{
int pcGlyphs = 0;
res = 0;
res = Uniscribe.ScriptShape(HDC, ref psc, input, input_length, cMaxGlyphs, ref sa,
pwOutGlyphs, pwLogClust, psva, ref pcGlyphs);
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();
}
else if (res == Win32.E_OUTOFMEMORY)
{
// The glyph buffer needs to be larger. Just double it every time.
throw new OutOfMemoryException();
}
else if (res == Win32.USP_E_SCRIPT_NOT_IN_FONT)
{
// The font you selected doesn't have enough information to display
// what you want. You'll have to pick another one somehow...
// For our cases, we'll just return failure.
//throw new Exception(); // Some other failure.
sa.eScript = 0;
// Loop again...
continue;
}
else
{
throw new Exception(); // Some other failure.
}
}
// It worked, resize the output list to the exact number it returned.
ushort[] glyphs = new ushort[pcGlyphs];
Array.Copy(pwOutGlyphs, glyphs, pcGlyphs);
pwOutGlyphs = glyphs;
ushort[] logs = new ushort[pcGlyphs];
Array.Copy(pwLogClust, logs, pcGlyphs);
pwLogClust = logs;
Uniscribe.SCRIPT_VISATTR[] visattr = new Uniscribe.SCRIPT_VISATTR[pcGlyphs];
Array.Copy(psva, visattr, pcGlyphs);
psva = visattr;
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 (OutOfMemoryException)
{
cMaxGlyphs = pwOutGlyphs.Length * 2;
pwOutGlyphs = new ushort[cMaxGlyphs];
psva = new Uniscribe.SCRIPT_VISATTR[cMaxGlyphs];
// 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);
return(res == 0);
}
