protected override void OnLoad(EventArgs e)
{
//build list of OpenType fonts
LOGFONT lf = new LOGFONT();
IntPtr plogFont = Marshal.AllocHGlobal(Marshal.SizeOf(lf));
Marshal.StructureToPtr(lf, plogFont, true);
try
{
fontList.Clear();
using (Graphics G = CreateGraphics())
{
IntPtr P = G.GetHdc();
EnumFontFamiliesEx(P, plogFont, Callback, IntPtr.Zero, 0);
G.ReleaseHdc(P);
}
}
finally
{
Marshal.DestroyStructure(plogFont, typeof(LOGFONT));
}
//sort fonts
fontList.Sort((f1, f2) => f1.elfFullName.CompareTo(f2.elfFullName));
//build combobox
cbFont.Items.Clear();
foreach (var item in fontList)
{
cbFont.Items.Add(item);
}
}
public OpenTypeFontStyle(FastColoredTextBox fctb, LOGFONT font) : base(null, null, FontStyle.Regular)
{
this.font = font;
//measure font
using (var gr = fctb.CreateGraphics())
{
var HDC = gr.GetHdc();
var fontHandle = CreateFontIndirect(font);
var f = SelectObject(HDC, fontHandle);
var measureSize = new Size(0, 0);
try
{
GetTextExtentPoint(HDC, "M", 1, ref measureSize);
}
finally
{
DeleteObject(SelectObject(HDC, f));
gr.ReleaseHdc(HDC);
}
fctb.CharWidth = measureSize.Width;
fctb.CharHeight = measureSize.Height + fctb.LineInterval;
fctb.NeedRecalc(true, true);
}
}
public static extern IntPtr CreateFontIndirect([In, MarshalAs(UnmanagedType.LPStruct)] LOGFONT lplf);
