Text Pointer Annotation Object - Raster imaging C++ Class Library Help

Text Pointer Annotation Object

The Text Pointer annotation object (ANNOBJECT_TEXTPOINTER) is a rectangle with a line that starts from one of the four corners. The other endpoint of the line can be moved to point to anything on the underlying image. The rectangle contains a character string with font properties. The text will wrap on word breaks within the object's specified rectangle.

With the automated functions, the user clicks and drag to specify the rectangle in the current window. After letting up on the mouse button, the rectangle is specified. Moving the mouse now specifies the line, with a final mouse click defining the line.

You can flip or reverse a text pointer object, but you cannot rotate it. If you flip or reverse the text pointer object, the text orientation does not change. To change the text orientation, see Text Dialog Box for Annotations.

To change the text orientation of a Text Pointer object, see Text Dialog Box for Annotations.

For information on flipping, reversing or rotating annotation objects, refer to Flipping, Reversing and Rotating Annotation Objects.

With low-level functions, you must specify the rectangle that contains the text, and the pointer endpoint of the line. See LAnnPoint::SetPoints for more details. Other applicable properties have the following defaults, which you can change:

Visible

Defaults to FALSE. It can be changed using the LAnnotation::SetVisible function.

Selected

Defaults to FALSE. It can be changed using the LAnnotation::SetSelected function.

Name

Defaults to an empty string. It can be changed using the LAnnotation::SetNameOptions function.

Line width

Defaults to 0.75 points. It can be changed using the LAnnAutomation::SetLineWidth function. (Note that when displayed, the line must have a minimum width of 1 pixel.)

Line style

Defaults to solid. It can be changed using the LAnnAutomation::SetLineStyle function.

ROP2 code

Defaults to ANNROP2_COPY. It can be changed using the LAnnotation::SetROP2 function.

Fill mode

Defaults to transparent. It can be changed using the LAnnotation::SetFillMode function. Before calling this function enable the alpha background fill mode by calling the LAnnotation::SetOptions function.

Foreground color

Defaults to red. It can be changed using the LAnnotation::SetForeColor function.

Background color

Defaults to white. It can be changed using the LAnnotation::SetBackColor function.

Font size

Defaults to 10 point, translated with a scaling factor of 1. It can be changed using the LAnnotation::SetFontSize function.

Font underline

Defaults to FALSE. It can be changed using the LAnnotation::SetFontUnderline function.

Font strikethrough

Defaults to FALSE. It can be changed using the LAnnotation::SetFontStrikethrough function.

Font italic

Defaults to FALSE. It can be changed using the LAnnotation::SetFontItalic function.

Font bold

Defaults to FALSE. It can be changed using the LAnnotation::SetFontBold function.

Font name

Defaults to "Arial". It can be changed using the LAnnotation::SetFontName function.

Text

Defaults to "AaBbYyZz". It can be changed using the LAnnAutomation::SetText function.

Text Displayed

Defaults to Show text. It can be changed using LAnnotation::SetTextOptions.

Text Color

Defaults to red (RGB(255,0,0). It can be changed using LAnnotation::SetTextOptions.

Text Alignment

Defaults to left alignment. It can be changed using the LAnnTextPointer::SetTextAlign function.

Text Rotate

Defaults to no rotation. It can be changed using the LAnnTextPointer::SetTextRotate function.

Text Pointer

The pointer part of the text pointer does not move when the object moves. It can be changed using the LAnnTextPointer::SetTextPointerFixed function.

Expand Tokens

Defaults to expand tokens. It can be changed using the LAnnAutomation::SetTextExpandTokens function.

Fixed State

Defaults to not fixed. It can be changed using the LAnnTextPointer::SetFixed function.

Hyperlink

Defaults to None. It can be changed using the LAnnotation::SetHyperlink function.

Tag (identifier)

Defaults to 0. It can be changed using the LAnnotation::SetTag function.

Window handle

Defaults to NULL or the handle inherited from the container. It can be changed for all objects using the LAnnContainer::SetWnd function.

User mode

Defaults to design mode or the mode inherited from the container. It can be changed for all objects using the LAnnContainer::SetUserMode function.

* These features must be enabled using the LAnnotation::SetOptions function.

Related topics:

Implementing Annotations.

Types of Annotations.

Low-Level Coordinate System for Annotations.

Annotation Objects - Automated Features

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