static void Main()
{
var fonts = new[] {
new Font("Arial", 7.5f, FontStyle.Regular),
new Font("Arial", 8.25f, FontStyle.Regular)
};
string textToMeasure = "START";
using (Graphics g = Graphics.FromHwnd(IntPtr.Zero))
{
IntPtr hDC = g.GetHdc();
foreach (Font font in fonts)
{
float totalWidth = 0F;
IntPtr hFont = font.ToHfont();
// Apply the font to dc
SelectObject(hDC, hFont);
int pairCount = GetKerningPairs(hDC, short.MaxValue, null);
var lpkrnpair = new KERNINGPAIR[pairCount];
GetKerningPairs(hDC, pairCount, lpkrnpair);
Console.WriteLine("\r\n" + font.ToString());
for (int ubound = textToMeasure.Length - 1, i = 0; i <= ubound; ++i)
{
char c = textToMeasure[i];
ABCFLOAT characterWidths = GetCharacterWidths(hDC, c);
float charWidth = (characterWidths.abcfA + characterWidths.abcfB + characterWidths.abcfC);
totalWidth += charWidth;
int kerning = 0;
if (i < ubound)
{
kerning = GetKerningBetweenCharacters(lpkrnpair, c, textToMeasure[i + 1]).iKernAmount;
totalWidth += kerning;
}
Console.WriteLine(c + ": " + (charWidth + kerning) + " (" + charWidth + " + " + kerning + ")");
}
Console.WriteLine("Total width: " + totalWidth);
DeleteObject(hFont);
}
g.ReleaseHdc(hDC);
}
}
static ABCFLOAT GetCharacterWidths(IntPtr hDC, char character)
{
ABCFLOAT[] values = new ABCFLOAT[1];
GetCharABCWidthsFloat(hDC, character, character, values);
return(values[0]);
}