virtual L_INT LAnnRectangle::SetLineWidth(dLineWidth, uFlags=0)
Sets the unscaled line width of the annotation object.
The unscaled line width of an object, relative to its container object. The width is interpreted using the container's scaling factors, which are described in Low-Level Coordinate System for Annotations.
Flags that determine the object to process. You can combine values when appropriate by using a bitwise OR (|). The following are valid values:
|0||Process only the specified object.|
|ANNFLAG_SELECTED||[0x0001] Process only objects that have the selected property set to TRUE. For getting and setting the selected property, use the LAnnotation::IsSelected() and LAnnotation::SetSelected() functions.|
|ANNFLAG_NOINVALIDATE||[0x0010] Do not invalidate the affected rectangle in the window. Use this to avoid generating unwanted paint messages.|
|SUCCESS||The function was successful.|
|< 1||An error occurred. Refer to Return Codes.|
The line width of an object is relative to its container object, and the value is interpreted using the container's scaling factors. For example, suppose you want the line to be three pixels wide on your screen using the current scaling factors. You would use the following calculation, where A is the desired width of three pixels, B is the value that you get from the LAnnotation::GetScalarX function, and C is the value that you get from the LAnnotation::GetScalarY function:
dLineWidth = A / sqrt( B * C )
For more information, refer to Low-Level Coordinate System for Annotations.
For an example, refer to LAnnRectangle::GetLineWidth.
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