property Texture.FaceFromPoint (X as OLE_XPOS_PIXELS, Y as OLE_YPOS_PIXELS) as FaceEnum
Retrieves the index of the face from the point.

TypeDescription
X as OLE_XPOS_PIXELS A single that specifies the current X location of the mouse pointer. The x values is always expressed in client coordinates.
Y as OLE_YPOS_PIXELS A single that specifies the current Y location of the mouse pointer. The y values is always expressed in client coordinates.
FaceEnum A long expression that indicates the index of the face from the point. 
The FaceFromPoint property retrieves the index of the face from the cursor. If the X parameter is -1 and Y parameter is -1 the ItemFromPoint property determines the handle of the item from the cursor.

The following VB sample displays the index of the face from the cursor:

Private Sub Texture1_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
    Dim i As Long
    With Texture1
        i = .FaceFromPoint(X / Screen.TwipsPerPixelX, Y / Screen.TwipsPerPixelY)
        If (i >= 0) Then
            .Object.ToolTipText = i
        End If
    End With
End Sub