public static PropVariant ToPropVariant(ManagedPropVariant managedPropVariant)
{
// Do a bitwise copy from the ManagedPropVariant that was passed in.
PropVariant propVariant = new PropVariant();
UnsafeNativeMethods.CopyToPropVariant(out propVariant, ref managedPropVariant);
return propVariant;
}
public static ManagedPropVariant FromPropVariant(PropVariant propVariant)
{
// Do a bitwise copy from the PropVariant that was passed in.
ManagedPropVariant managedPropVariant = new ManagedPropVariant();
UnsafeNativeMethods.CopyFromPropVariant(out managedPropVariant, ref propVariant);
return managedPropVariant;
}
public static PropVariant ToPropVariant(ManagedPropVariant managedPropVariant)
{
// Do a bitwise copy from the ManagedPropVariant that was passed in.
PropVariant propVariant = new PropVariant();
UnsafeNativeMethods.CopyToPropVariant(out propVariant, ref managedPropVariant);
return(propVariant);
}
public static ManagedPropVariant FromPropVariant(PropVariant propVariant)
{
// Do a bitwise copy from the PropVariant that was passed in.
ManagedPropVariant managedPropVariant = new ManagedPropVariant();
UnsafeNativeMethods.CopyFromPropVariant(out managedPropVariant, ref propVariant);
return(managedPropVariant);
}
public void Clear()
{
// Can't pass "this" by ref, so make a copy to call PropVariantClear with
ManagedPropVariant var = this;
UnsafeNativeMethods.PropVariantClear(ref var);
// Since we couldn't pass "this" by ref, we need to clear the member fields manually
// NOTE: PropVariantClear already freed heap data for us, so we are just setting
// our references to null.
vt = (ushort)VarEnum.VT_EMPTY;
wReserved1 = wReserved2 = wReserved3 = 0;
p = IntPtr.Zero;
p2 = 0;
}
public ManagedPropVariant GetSetting(ContentEditorSetting setting)
{
switch (setting)
{
case ContentEditorSetting.MshtmlOptionKeyPath:
return(ManagedPropVariant.FromPropVariant(GetMshtmlOptionKeyPath()));
case ContentEditorSetting.ImageDefaultSize:
return(ManagedPropVariant.FromPropVariant(GetImageDefaultSize()));
case ContentEditorSetting.Language:
return(ManagedPropVariant.FromPropVariant(GetLanguage()));
default:
Debug.Fail("Unexpected ContentEditorSetting!");
PropVariant propVariant = new PropVariant();
propVariant.SetError();
return(ManagedPropVariant.FromPropVariant(propVariant));
}
}
/// <summary>
/// If getting the settings fails, this method throws an InvalidSettingException.
/// </summary>
public static T GetSetting <T>(ContentEditorSetting setting)
{
T value = default(T);
ManagedPropVariant managedPropVariant = _settingsProvider.GetSetting(setting);
PropVariant propVariant = ManagedPropVariant.ToPropVariant(managedPropVariant);
if (!propVariant.IsError() && !propVariant.IsNull())
{
value = (T)propVariant.Value;
}
else
{
Debug.Fail("PROPVARIANT unexpectedly null or error!");
throw new ContentEditorSettingException(setting);
}
propVariant.Clear();
managedPropVariant.Clear();
return(value);
}
internal extern static void PropVariantClear([In, Out] ref ManagedPropVariant pvar);
internal extern static void CopyFromPropVariant([Out] out ManagedPropVariant pDst, [In] ref PropVariant pSrc);
internal extern static void CopyToPropVariant([Out] out PropVariant pDst, [In] ref ManagedPropVariant pSrc);
