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   [Collapse]GraphicsCache Class
     GraphicsCache Members
    [Expand]GraphicsCache Constructor
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    [Collapse]GraphicsCache Methods
      CalcClipRectangle Method
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 End-User Documentation

GraphicsCache.IsNeedDrawRect Method

Returns whether the region which is bounded by the specified rectangle needs to be redrawn.

Namespace:DevExpress.Utils.Drawing
Assembly:DevExpress.Utils.v17.1.dll

Expanded Syntax

Parameters

r
Type: Rectangle
A System.Drawing.Rectangle structure that specifies the rectangle to test.

Return value

Type: Boolean
true if the specified rectangle needs to be redrawn; otherwise, false.

Expanded Remarks

If the region specified by the r parameter or its portion is visible the IsNeedDrawRect method returns true. The region's visibility is calculated taking into account the current clipping region.

Expanded See Also

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