The stamp annotation object (AnnStampObject) can be a bitmap image or a text string in a rectangular frame. With the automated functions, the user clicks and drags to specify a rectangle. Then, if the user specifies a text string, the text is centered in the rectangle. If the user specifies a bitmap, the bitmap is scaled to fit the rectangle. On a device that displays 256 colors or less, you should use a fixed palette when displaying bitmaps. Otherwise, a palette shift will occur on stamp objects containing bitmaps.
Programmatically, the boundaries and location of the stamp object can be controlled using the following properties:
The AnnStampObject class inherits a number of properties from the AnnDrawable class that provide support for font, pen and brush characteristics. These properties are listed below:
The AnnStampObject class inherits a number of text properties from the AnnTextObject class that provide support for text alignment, margins, etc. These properties are listed below:
The name of the stamp object can be controlled using the following properties, inherited from the AnnObject class:
The following properties may be used in transforming a stamp annotation object:
An object can be part of a group annotation object or part of a container object. It cannot be part of both a group and a container at the same time. The Container property and the Group property, both inherited from the AnnObject class, contain information on the container or the group to which the object belongs.
The following properties can also be used to programmatically set characteristics of an AnnStampObject class object:
HitTestInterior Hyperlink IsLocked Password Picture SerializePassword TextColor UnitConverter UserData Visible
For more information about the automated stamp annotation object, refer to Annotation Objects - Automated Features and Automated Annotations - Stamp Picture Tab.