public static void GetGlyphShape(Font font, Char c)
{
GLYPHMETRICS metrics = new GLYPHMETRICS();
MAT2 matrix = new MAT2();
matrix.eM11.value = 1;
matrix.eM12.value = 0;
matrix.eM21.value = 0;
matrix.eM22.value = 1;
using (Bitmap b = new Bitmap(1, 1))
{
using (Graphics g = Graphics.FromImage(b))
{
IntPtr hdc = g.GetHdc();
IntPtr prev = SelectObject(hdc, font.ToHfont());
int bufferSize = (int)GetGlyphOutline(hdc, (uint)c, (uint)2, out metrics, 0, IntPtr.Zero, ref matrix);
IntPtr buffer = Marshal.AllocHGlobal(bufferSize);
try
{
uint ret;
if ((ret = GetGlyphOutline(hdc, (uint)c, (uint)2, out metrics, (uint)bufferSize, buffer, ref matrix)) > 0)
if ((ret = GetGlyphOutline(hdc, (uint)c, (unit)2, out metrics, (uint)bufferSize, buffer, ref matrix)) > 0)
{
int polygonHeaderSize = Marshal.SizeOf(typeof(TTPOLYGONHEADER));
int curveHeaderSize = Marshal.SizeOf(typeof(TTPOLYCURVEHEADER));
int pointFxSize = Marshal.SizeOf(typeof(POINTFX));
int index = 0;
while (index < bufferSize)
{
TTPOLYGONHEADER header = (TTPOLYGONHEADER)Marshal.PtrToStructure(new IntPtr(buffer.ToInt32() + index), typeof(TTPOLYGONHEADER));
int startX = header.pfxStart.x.value;
int startY = -header.pfxStart.y.value;
int endCurvesIndex = index + header.cb;
index += polygonHeaderSize;
while (index < endCurvesIndex)
{
TTPOLYCURVEHEADER curveHeader = (TTPOLYCURVEHEADER)Marshal.PtrToStructure(new IntPtr(buffer.ToInt32() + index), typeof(TTPOLYCURVEHEADER));
index += curveHeaderSize;
POINTFX[] curvePoints = new POINTFX[curveHeader.cpfx];
for (int i = 0; i < curveHeader.cpfx; i++)
{
curvePoints[i] = (POINTFX)Marshal.PtrToStructure(new IntPtr(buffer.ToInt32() + index), typeof(POINTFX));
index += pointFxSize;
}
if (curveHeader.wType == (int)1)
{
// POLYLINE
for (int i = 0; i < curveHeader.cpfx; i++)
{
short x = curvePoints[i].x.value;
short y = (short)-curvePoints[i].y.value;
}
}
else
{
// CURVE
for (int i = 0; i < curveHeader.cpfx - 1; i++)
{
POINTFX pfxB = curvePoints[i];
POINTFX pfxC = curvePoints[i + 1];
short cx = pfxB.x.value;
short cy = (short)-pfxB.y.value;
short ax;
short ay;
if (i < curveHeader.cpfx - 2)
{
ax = (short)((pfxB.x.value + pfxC.x.value) / 2);
ay = (short)-((pfxB.y.value + pfxC.y.value) / 2);
}
else
{
ax = pfxC.x.value;
ay = (short)-pfxC.y.value;
}
}
}
}
}
}
else
{
throw new Exception("Could not retrieve glyph (GDI Error: 0x" + ret.ToString("X") + ")");
}
g.ReleaseHdc(hdc);
}
finally
{
Marshal.FreeHGlobal(buffer);
}
}
}
return shape;
}
static extern uint GetGlyphOutline(IntPtr hdc, uint uChar, uint uFormat,
out GLYPHMETRICS lpgm, uint cbBuffer, IntPtr lpvBuffer, ref MAT2 lpmat2);
