public override object ConvertNativeToManaged(object nativeValue, Com2PropertyDescriptor pd)
{
System.Windows.Forms.UnsafeNativeMethods.IFont font = nativeValue as System.Windows.Forms.UnsafeNativeMethods.IFont;
if (font == null)
{
this.lastHandle = IntPtr.Zero;
this.lastFont = Control.DefaultFont;
return(this.lastFont);
}
IntPtr hFont = font.GetHFont();
if ((hFont != this.lastHandle) || (this.lastFont == null))
{
this.lastHandle = hFont;
try
{
using (Font font2 = Font.FromHfont(this.lastHandle))
{
this.lastFont = ControlPaint.FontInPoints(font2);
}
}
catch (ArgumentException)
{
this.lastFont = Control.DefaultFont;
}
}
return(this.lastFont);
}
/// <summary>
/// Converts the native value into a managed value
/// </summary>
public override object ConvertNativeToManaged(object nativeValue, Com2PropertyDescriptor pd)
{
// we're getting an IFont thing here
if (!(nativeValue is UnsafeNativeMethods.IFont nativeFont))
{
lastHandle = IntPtr.Zero;
lastFont = Control.DefaultFont;
return(lastFont);
}
IntPtr fontHandle = nativeFont.GetHFont();
// see if we have this guy cached
if (fontHandle == lastHandle && lastFont != null)
{
return(lastFont);
}
lastHandle = fontHandle;
try
{
// this wasn't working because it was converting everything to
// world units.
//
Font font = Font.FromHfont(lastHandle);
try
{
lastFont = ControlPaint.FontInPoints(font);
}
finally
{
font.Dispose();
}
}
catch (ArgumentException)
{
// we will fail on non-truetype fonts, so
// just use the default font.
lastFont = Control.DefaultFont;
}
return(lastFont);
}
public override object ConvertNativeToManaged(object nativeValue, Com2PropertyDescriptor pd)
{
// we're getting an IFont here
if (!(nativeValue is Ole32.IFont nativeFont))
{
_lastHandle = IntPtr.Zero;
_lastFont = Control.DefaultFont;
return(_lastFont);
}
IntPtr fontHandle = nativeFont.hFont;
// see if we have this guy cached
if (fontHandle == _lastHandle && _lastFont != null)
{
return(_lastFont);
}
_lastHandle = fontHandle;
try
{
// this wasn't working because it was converting everything to
// world units.
using (Font font = Font.FromHfont(_lastHandle))
{
_lastFont = ControlPaint.FontInPoints(font);
}
}
catch (ArgumentException)
{
// we will fail on non-truetype fonts, so
// just use the default font.
_lastFont = Control.DefaultFont;
}
return(_lastFont);
}
