Public Overridable ReadOnly Property InvalidRectangle As Rectangle

Visual Basic (Usage)	Copy Code
Dim instance As AnnObject Dim value As Rectangle   value = instance.InvalidRectangle

public virtual Rectangle InvalidRectangle {get;}

public:
virtual property Rectangle InvalidRectangle {
   Rectangle get();
}

Return Value

This example will change an object's name and then re-paint it inside its container.

Visual Basic

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Private Sub AnnObject_InvalidRectangle(ByVal obj As AnnObject, ByVal name As String, ByVal viewer As RasterImageViewer)    ' first save the old invalid rectangle    Dim rcOld As Rectangle = obj.InvalidRectangle    ' set the name    obj.Name = name    obj.NameVisible = True    obj.NameFont = New AnnFont("Arial", New AnnLength(10, AnnUnit.Point), FontStyle.Bold Or FontStyle.Italic)    ' get the new invalid rectangle    Dim rcNew As Rectangle = obj.InvalidRectangle    ' re-paint this object by invalidating the union of both rectangles    viewer.Invalidate(Rectangle.Union(rcOld, rcNew)) End Sub

C#

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private void AnnObject_InvalidRectangle(AnnObject obj, string name, RasterImageViewer viewer)  {     // first save the old invalid rectangle     Rectangle rcOld = obj.InvalidRectangle;     // set the name     obj.Name = name;     obj.NameVisible = true;     obj.NameFont = new AnnFont("Arial", new AnnLength(10, AnnUnit.Point), FontStyle.Bold | FontStyle.Italic);       // get the new invalid rectangle     Rectangle rcNew = obj.InvalidRectangle;       // re-paint this object by invalidating the union of both rectangles     viewer.Invalidate(Rectangle.Union(rcOld, rcNew));  }

• The bounding rectangle of the graphics path returned from the AnnObject.GetGraphicsPath method with a AnnGetGraphicsPathMode value of Bound. This rectangle is then transformed using the AnnObject.PhysicalTransform matrix to convert the rectangle to physical coordinates. Finally this rectangle is adjusted by the physical width of the pen used to draw this object.
• The physical bounding rectangle of the locked picture if this object is locked. Refer to AnnObject.Lock, LockPicture.
• The physical bounding rectangle of the name text if the name of this AnnObject is visible. Refer to Name, AnnObject.NameFont, AnnObject.NameOffset and AnnObject.NameVisible.

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

Reference