DrawGdPictureImageRect Method (GdPictureImaging)

In This Topic

Draws a portion of a GdPicture image into another GdPicture image.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Function DrawGdPictureImageRect( _
   ByVal SrcImage As Integer, _
   ByVal DstImage As Integer, _
   ByVal DstLeft As Single, _
   ByVal DstTop As Single, _
   ByVal DstWidth As Single, _
   ByVal DstHeight As Single, _
   ByVal SrcLeft As Single, _
   ByVal SrcTop As Single, _
   ByVal SrcWidth As Single, _
   ByVal SrcHeight As Single, _
   ByVal InterpolationMode As InterpolationMode _
) As GdPictureStatus

public GdPictureStatus DrawGdPictureImageRect( 
   int SrcImage,
   int DstImage,
   float DstLeft,
   float DstTop,
   float DstWidth,
   float DstHeight,
   float SrcLeft,
   float SrcTop,
   float SrcWidth,
   float SrcHeight,
   InterpolationMode InterpolationMode
)

public function DrawGdPictureImageRect( 
    SrcImage: Integer;
    DstImage: Integer;
    DstLeft: Single;
    DstTop: Single;
    DstWidth: Single;
    DstHeight: Single;
    SrcLeft: Single;
    SrcTop: Single;
    SrcWidth: Single;
    SrcHeight: Single;
    InterpolationMode: InterpolationMode
): GdPictureStatus;

public function DrawGdPictureImageRect( 
   SrcImage : int,
   DstImage : int,
   DstLeft : float,
   DstTop : float,
   DstWidth : float,
   DstHeight : float,
   SrcLeft : float,
   SrcTop : float,
   SrcWidth : float,
   SrcHeight : float,
   InterpolationMode : InterpolationMode
) : GdPictureStatus;

public: GdPictureStatus DrawGdPictureImageRect( 
   int SrcImage,
   int DstImage,
   float DstLeft,
   float DstTop,
   float DstWidth,
   float DstHeight,
   float SrcLeft,
   float SrcTop,
   float SrcWidth,
   float SrcHeight,
   InterpolationMode InterpolationMode
)

public:
GdPictureStatus DrawGdPictureImageRect( 
   int SrcImage,
   int DstImage,
   float DstLeft,
   float DstTop,
   float DstWidth,
   float DstHeight,
   float SrcLeft,
   float SrcTop,
   float SrcWidth,
   float SrcHeight,
   InterpolationMode InterpolationMode
)

Parameters

SrcImage: GdPicture image identifier. Specifies the image to be drawn from.
DstImage: GdPicture image identifier. specifies the image to draw to.
DstLeft: Specifies the x-coordinate, in pixel, of the upper-left corner of the destination rectangle at which to draw the image.
DstTop: Specifies the y-coordinate in pixels of the upper-left corner of the destination rectangle at which to draw the image.
DstWidth: Specifies the width, in pixels, of the destination rectangle at which to draw the image.
DstHeight: Specifies the height, in pixels, of the destination rectangle at which to draw the image.
SrcLeft: Left pixel source of the image to draw.
SrcTop: Top pixel source of the image to draw.
SrcWidth: Width portion in pixels of the image to draw.
SrcHeight: Height portion in pixels of the image to draw.
InterpolationMode: A member of the Drawing2D.InterPolationMode enumeration.

Return Value

A member of the GdPictureStatus enumeration.

Example

Rendering a portion of an image with a circle onto the background image and saving the result into a png file.

using (GdPictureImaging gdpictureImaging = new GdPictureImaging())
{
    System.Drawing.Drawing2D.InterpolationMode iMode = System.Drawing.Drawing2D.InterpolationMode.Default;
    int backColor = gdpictureImaging.ARGBI(255, 0, 255, 0); // Green color
    int circleColor = gdpictureImaging.ARGBI(255, 255, 0, 0); // Red color
 
    int dstLeft = 0;
    int dstTop = 0;
    int dstWidth = 200;
    int dstHeight = 200;
 
    int srcLeft = 0;
    int srcTop = 0;
    int srcWidth = 40;
    int srcHeight = 40;
 
    // Create background image.
    int backImage = gdpictureImaging.CreateNewGdPictureImage(200, 200, 32, backColor);
 
    // Create image with circle.
    int circleImage = gdpictureImaging.CreateNewGdPictureImage(80, 80, 32, gdpictureImaging.ARGBI(0, 0, 0, 0));
    gdpictureImaging.DrawFilledCircle(circleImage, 40, 40, 80, circleColor, true);
 
    // Draw portion of image with circle into the background image.
    gdpictureImaging.DrawGdPictureImageRect(circleImage, backImage, dstLeft, dstTop, dstWidth, dstHeight, srcLeft, srcTop, srcWidth, srcHeight, iMode);
    gdpictureImaging.SaveAsPNG(backImage, "output.png");
 
    // Release used resources.
    gdpictureImaging.ReleaseGdPictureImage(circleImage);
    gdpictureImaging.ReleaseGdPictureImage(backImage);
}

Reference

GdPictureImaging Class
GdPictureImaging Members