ResizeWidthRatio Method (GdPictureImaging)

In This Topic

Resizes a GdPicture image with custom width keeping the original aspect ratio for the new height value.

Syntax

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

'Declaration
 
Public Function ResizeWidthRatio( _
   ByVal ImageID As Integer, _
   ByVal NewImageWidth As Integer, _
   ByVal InterpolationMode As InterpolationMode _
) As GdPictureStatus

public GdPictureStatus ResizeWidthRatio( 
   int ImageID,
   int NewImageWidth,
   InterpolationMode InterpolationMode
)

public function ResizeWidthRatio( 
    ImageID: Integer;
    NewImageWidth: Integer;
    InterpolationMode: InterpolationMode
): GdPictureStatus;

public function ResizeWidthRatio( 
   ImageID : int,
   NewImageWidth : int,
   InterpolationMode : InterpolationMode
) : GdPictureStatus;

public: GdPictureStatus ResizeWidthRatio( 
   int ImageID,
   int NewImageWidth,
   InterpolationMode InterpolationMode
)

public:
GdPictureStatus ResizeWidthRatio( 
   int ImageID,
   int NewImageWidth,
   InterpolationMode InterpolationMode
)

Parameters

ImageID: GdPicture image identifier.
NewImageWidth: The new image width in pixel.
InterpolationMode: A member of the Drawing2D.InterPolationMode enumeration.

Return Value

A member of the GdPictureStatus enumeration.

Remarks

This method automatically adjusts the vertical and horizontal image resolution in order to maintain the aspect ratio. If the intention is to change the aspect ratio, the SetVerticalResolution() and/or SetHorizontalResolution() methods should be used instead.

Example

Resizing the image making it twice the original size.

using (GdPictureImaging gdpictureImaging = new GdPictureImaging())
{
    int imageID = gdpictureImaging.CreateGdPictureImageFromFile("input.png");
 
    // Resize the image making its width twice larger. The height of the image will be changed in order to maintain the aspect ratio.
    int width = gdpictureImaging.GetWidth(imageID);
    gdpictureImaging.ResizeWidthRatio(imageID, width * 2, System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic);
 
    gdpictureImaging.SaveAsPNG(imageID, "output.png");
 
    gdpictureImaging.ReleaseGdPictureImage(imageID);
}

Reference

GdPictureImaging Class
GdPictureImaging Members