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The line annotation object (ANNOBJECT_LINE) is a simple line. With the automated functions, the line is started on a mouse-down event and completed on a mouse-up event.
The class for Line Annotation objects is LAnnLine.
With low-level functions, you must provide the points that define the line. 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 LAnnLine::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 LAnnLine::SetLineStyle function. |
ROP2 code |
Defaults to ANNROP2_COPY. It can be changed using the LAnnotation::SetROP2 function. |
Foreground color |
Defaults to red. It can be changed using the LAnnLine::SetForeColor function. |
Fixed State |
Defaults to not fixed. It can be changed using the LAnnXXX::SetFixed function. |
Hyperlink |
Defaults to ANNLINK_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. |
User mode |
Defaults to design mode or the mode inherited from the container. |
Note: You can not create a line of two points which they are the same.
Related topics:
Low-Level Coordinate System for Annotations.
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