AnnRotateAngle property (Annotation Control)

Remarks

(Read Only) Gets the rotation angle for an annotation object.

The angle is in radians, and uses the following convention.

The possible range of rotate values is (-Pi) ... (Pi)

A rotation in the clockwise direction is considered a positive rotation.

A rotation in the counter-clockwise direction is considered a negative rotation.

For example, if a rectangle is rotated 90 degrees in the counter clockwise direction, this property will get (-PI/2) for the rotation angle. If a rectangle is rotated 90 degrees in the clockwise direction, this property will get PI/2 for the rotation angle. If a rectangle is rotated 270 degrees in the counter clockwise direction, this is equivalent to 90 degrees in the clockwise direction so the rotation value returned is PI/2.

This property is only valid for the following annotation object types:

ANNOBJECT_POINTER

ANNOBJECT_LINE

ANNOBJECT_RULER

ANNOBJECT_AUDIO

ANNOBJECT_BUTTON

ANNOBJECT_ELLIPSE

ANNOBJECT_HILITE

ANNOBJECT_HOTSPOT

ANNOBJECT_NOTE

ANNOBJECT_RECT

ANNOBJECT_REDACT

ANNOBJECT_STAMP

ANNOBJECT_TEXT

ANNOBJECT_VIDEO

ANNOBJECT_PUSHPIN

ANNOBJECT_ENCRYPT

See Also