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Crossproduct Annotation Object

(Document and Medical Imaging toolkits)

The CrossProduct annotation object (ANNOBJECT_CROSSPRODUCT) consists of two rulers intersecting at right angles. With the automated functions, the CrossProduct is started on a mouse-down event and completed on a mouse-up event.

With low-level functions, you must define the points by calling the L_AnnSetPoints function. The points are ordered as follows:

image\CrPoint.gif

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

Other applicable properties have the following defaults, which you can change:

Property Defaults
Visible Defaults to FALSE. It can be changed using the L_AnnSetVisible function.
Selected Defaults to FALSE. It can be changed using the L_AnnSetSelected function.
Name Defaults to an empty string. It can be changed using the L_AnnSetNameOptions function.
Line width Defaults to 0.75 points. It can be changed using the L_AnnSetLineWidth 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 L_AnnSetLineStyle function.
ROP2 code Defaults to ANNROP2_COPY. It can be changed using the L_AnnSetROP2 function.
Fill mode Defaults to transparent. It can be changed using the L_AnnSetFillMode function.
Foreground color Defaults to red. It can be changed using the L_AnnSetForeColor function.
Background color Defaults to white. It can be changed using the L_AnnSetBackColor function. The default does not affect highlight, redaction, or note objects.
Font size Defaults to 10 point, translated with a scaling factor of 1. It can be changed using the L_AnnSetFontSize function.
Font underline Defaults to FALSE. It can be changed using the L_AnnSetFontUnderline function.
Font strikethrough Defaults to FALSE. It can be changed using the L_AnnSetFontStrikeThrough function.
Font italic Defaults to FALSE. It can be changed using the L_AnnSetFontItalic function.
Font bold Defaults to FALSE. It can be changed using the L_AnnSetFontBold function.
Font name Defaults to "Arial". It can be changed using the L_AnnSetFontName function.
Ruler show flags Defaults to ANNSHOW_LENGTH + ANNSHOW_TICMARKS, using smart English as the measurement unit with a precision of 2, and a tic mark length of 30. These options can be changed using the L_AnnSetShowFlags function, the L_AnnSetGaugeLength function, and the L_AnnSetUnit function.
Fixed State Defaults to not fixed. It can be changed using the L_AnnSetFixed function.
Hyperlink Defaults to None. It can be changed using the L_AnnSetHyperlink function.
Tag (identifier) Defaults to 0. It can be changed using the L_AnnSetTag function.
Window handle Defaults to NULL or the handle inherited from the container. It can be changed for all objects using the L_AnnSetWnd function.
User mode Defaults to design mode or the mode inherited from the container. It can be changed for all objects using the L_AnnSetUserMode function.
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