Prepares display for rotating. If centerPt is NULL, the center of the visible bounds is used.

[Visual Basic 6.0]
Sub RotateStart(
    ByVal mousePt As IPoint, _
    ByVal centerPt As IPoint _
)

[Visual Basic .NET]
Public Sub RotateStart ( _
    ByVal mousePt As IPoint, _
    ByVal centerPt As IPoint _
)

[C#]
public void RotateStart (
    IPoint mousePt,
    IPoint centerPt
);

[Java]
public void rotateStart (
    IPoint mousePt,
    IPoint centerPt
)
throws
    IOException,
    AutomationException

[C++]
HRESULT RotateStart(
  IPoint* mousePt,
  IPoint* centerPt
);

Product Availability

Remarks

Call RotateStart to initiate rotating the display.  The required point parameter specifies the starting point of the rotation.  Call RotateMoveTo next to specify the rotation destination point, a rotation angle is calculated based on these two points.

The typical sequence for using the rotate methods is as follows:

• OnMouseDown - RotateStart
• OnMouseMove - RotateMoveTo
• OnMouseMove - RotateTimer
• OnMouseUp - RotateStop

See TrackRotate for an alternative rotating approach.

See Also

IScreenDisplay Interface | IScreenDisplay.RotateStop Method | IDisplayTransformation.Rotation Property | IScreenDisplay.RotateStart Method | IScreenDisplay.RotateTimer Method | IScreenDisplay.RotateMoveTo Method

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