GdPicture14 Namespace / GdPictureImaging Class / ResizeHeightRatio Method
GdPicture image identifier.
The new height of the image in pixel.
A member of the Drawing2D.InterPolationMode enumeration.

In This Topic
ResizeHeightRatio Method (GdPictureImaging)
In This Topic
Resizes a GdPicture image with custom height keeping the original aspect ratio for the new width value.
Public Function ResizeHeightRatio( _
   ByVal ImageID As Integer, _
   ByVal NewImageHeight As Integer, _
   ByVal InterpolationMode As GdPictureInterpolationMode _
) As GdPictureStatus
public function ResizeHeightRatio( 
    ImageID: Integer;
    NewImageHeight: Integer;
    InterpolationMode: GdPictureInterpolationMode
): GdPictureStatus; 
public function ResizeHeightRatio( 
   ImageID : int,
   NewImageHeight : int,
   InterpolationMode : GdPictureInterpolationMode
) : GdPictureStatus;


GdPicture image identifier.
The new height of the image in pixel.
A member of the Drawing2D.InterPolationMode enumeration.

Return Value

A member of the GdPictureStatus enumeration.
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.
Resizing the image making it half the original size.
using (GdPictureImaging gdpictureImaging = new GdPictureImaging())
    int imageID = gdpictureImaging.CreateGdPictureImageFromFile("input.png");
    // Resize the image making its height half. The width of the image will be changed in order to maintain the aspect ratio.
    int height = gdpictureImaging.GetHeight(imageID);
    gdpictureImaging.ResizeHeightRatio(imageID, height / 2, System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic);
    gdpictureImaging.SaveAsPNG(imageID, "output.png");
See Also