The Freehand Hot Spot annotation object (ANNOBJECT_FREEHANDHOTSPOT) is an array of points that create a sequence of joined lines. With the automated functions, in design mode, 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. In run mode, the object is transparent, but the mouse pointer changes to a hand when it is over the object. Clicking on the button sends a WM_LTANNEVENT message that indicates an activation event.
The class for Freehand Hot Spot Annotation objects is LAnnFreehandHotSpot.
You can change the points of a freehand object using LAnnFreehand::GetPoints and LAnnFreehand::AnnSetPoints.
For information on flipping, reversing or rotating annotation objects, refer to Flipping, Reversing and Rotating Annotation Objects.
With low-level functions, you must define the size and position of the rectangle. 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 LAnnXXX::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 LAnnXXX::SetLineStyle function. |
ROP2 code |
Defaults to ANNROP2_COPY. It can be changed using the LAnnotation::SetROP2 function. |
Nodes |
Defaults to displaying every node. It can be changed using the LAnnXXX::SetNodes function. |
Hotspot Metafile |
Defaults to a campfire graphic. It can be changed using the LAnnXXX::SetMetafile 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. It can be changed for all objects using LAnnContainer::SetWnd. |
User mode |
Defaults to design mode or the mode inherited from the container. It can be changed for all objects using LAnnContainer::SetUserMode. |
Related topics:
Low-Level Coordinate System for Annotations.
Annotation Objects - Automated Features
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