This optional property controls annotation font underline on a per annotation basis. If not defined and left empty, annotation text will be drawn in underline defined by LabelUnderline.
Defining any of GraphAnnotationFont, GraphAnnotationBold, GraphAnnotationItalic, GraphAnnotationUnderline, or GraphAnnotationFontSize causes a performance hit in drawing annotations as potential font objects need to be allocated and selected per annotation. Not using any of these allows all annotations to use the same font object and is most efficient.
Within the demo, see example 015.
Refer to Chapter 7, Question 10 for more information on annotations.
When used with PEvget, the destination buffer must be large enough to hold all of the Int32 information. For property arrays, calling PEvget with lpDest equal to NULL will return the number of bytes needed to hold the data.
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