A rectangular frame surrounding a picture with eight smaller, square areas (referred to as blobs) for moving and resizing the picture. A blob is located on each corner and at the centre of each side.

Each blob has a visible width and an active width. The active width allows easier manipulation of picture frames because the blobs may be small and difficult to manipulate with a pen. The active width should be set to be at least as large as the visible width.

A picture frame also has a set of flags which are used when drawing the frame. These control the frame border visibility, whether blobs should be drawn inside or outside the frame and whether the blobs should be filled using a solid brush style or using a NULL brush style, causing them to appear dimmed. For more information on brush styles. see CGraphicsContext::TBrushStyle .