Common Interface for objects that expose VB-drawing-API

Hi

VB.Form, VB.PictureBox and VB.Printer have a TextWidth and TextHeight-method, they also share these VB-Drawing methods
like PaintPicture, PSet, Line, Circle, Print, Cls
and props like CurrentX, CurrentY, DrawMode, DrawWidth, FillColor
and some more.
Is there a name for a common COM-interface that these VB-objects implement, so that if i can specify this interface-type for an
argument of a method, rather then the generic 'Object'-type?

I am replacing controls that have multiple cols displaying
text-entries like listviews, grids, option-groups etc by text
printed onto either pictureboxes, forms or the printer-object
and i need to get max text-width and -height of the list-control.
So it was nice, although not necessary, if i could pass the control
that executes TextWidth and TextHeight by a strong type.

My current signature is:

Public Sub GetMaxTextEntend _
( _
oCtrl As Object, _
oNewContainer As Object, _
ByRef sngMaxTextWidth As Single, _
ByRef sngMaxTextHeight As Single _
)

where

oNewContainer As Object,

should by replaced by

oNewContainer As IVBContainerForDrawing,

Now does this interface exist and does it have a name?

MfG,
Alex
.

Loading