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Freehand Line Annotation Object

(Document and Medical Imaging toolkits)

The freehand annotation object (ANNOBJECT_FREEHAND) is an array of points that create a sequence of joined lines. With the automated functions, each line segment is formed with a mouse move event when the left button is down, and the object is completed on a mouse up event.

You can change the points using L_AnnGetPoints and L_AnnSetPoints.

With low-level functions, you must provide the points that define the shape of the object. 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.
Foreground color Defaults to red. It can be changed using the L_AnnSetForeColor function.
Nodes Defaults to displaying every node. It can be changed using the L_AnnSetNodes 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.
Help Version 21.0.2023.2.15
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LEADTOOLS Raster Imaging C API Help

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© 1991-2021 LEAD Technologies, Inc. All Rights Reserved.