C# System.Drawing Graphic 구현되지 않음 예외

Question

다음 코드는 컴파일되지만 메서드가 호출 될 때 System.NotImplementedException: Not implemented. 사용자 지정 클래스를 사용하지 않습니다.

private void miterTopLeft(Image img, Graphics gfx) 
{ 
    int maxSize = Math.Max(img.Height, img.Width); 
    Point[] points = new Point[4]; 
    points[0] = new Point(0, 0); 
    points[1] = new Point(maxSize, maxSize); 
    points[2] = new Point(0, maxSize); 
    points[3] = new Point(0, 0); 
    gfx.DrawImage(img, points); 
} 

왜이 오류가 .NET 클래스에서 발생합니까? 해결 방법이 있습니까?

스택 추적은 :

[NotImplementedException: Not implemented.] 
System.Drawing.Graphics.CheckErrorStatus(Int32 status) +1154064 
System.Drawing.Graphics.DrawImage(Image image, PointF[] destPoints) +150 
GetMergeImage.miterTopLeft(Image img, Graphics gfx) in d:\.NET Projects\publish2\GetMergeImage.ashx:51 
GetMergeImage.drawLeftBorderRectangeRug(Double ppi, Boolean hasCorner, Graphics gfx, DesignVO border, Image img, Double vBorderStartY, Double vBorderStartX, Double vBorderNumRepeat) in d:\.NET Projects\publish2\GetMergeImage.ashx:243 
GetMergeImage.drawRectangularRug(Int32 displayWidth, Int32 displayHeight, Int32 width, Int32 height, MergeVO merge) in d:\.NET Projects\publish2\GetMergeImage.ashx:140 
GetMergeImage.ProcessRequest(HttpContext context) in d:\.NET Projects\publish2\GetMergeImage.ashx:40 
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +100 
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75 

Answer 1

According to the documentation 만 평행 사변형을 구성하는 세 점을 전달할 수 있습니다.

삼각형을 원하면 clip the drawing