public Size GetTextExtent(string text, WindowsFont font)
{
if (string.IsNullOrEmpty(text))
{
return(Size.Empty);
}
IntNativeMethods.SIZE size = new IntNativeMethods.SIZE();
HandleRef hDC = new HandleRef(null, this.dc.Hdc);
if (font != null)
{
this.dc.SelectFont(font);
}
IntUnsafeNativeMethods.GetTextExtentPoint32(hDC, text, size);
if ((font != null) && !MeasurementDCInfo.IsMeasurementDC(this.dc))
{
this.dc.ResetFont();
}
return(new Size(size.cx, size.cy));
}
