GdPictureImaging.HistogramGet8Bpp Method

Computes the colors histogram of a 8bpp indexed GdPicture image.

public GdPictureStatus HistogramGet8Bpp(
    int ImageID, 
    ref int ArHistoPal
);

Visual Basic

Public Function HistogramGet8Bpp(
    ByVal ImageID As Integer, 
    ByRef ArHistoPal() As Integer
) As GdPictureStatus

Parameters

Parameters	Description
ImageID	GdPicture Image Identifier.
ArHistoPal	Output parameter. Array of 256 entries containing the color palette histogram data.

Returns

A member of the GdPictureStatus enumeration.

Remarks

This function works only with 8bpp image.

Example

Copy Code

Dim oGdPictureImaging As New GdPictureImaging
Dim arHisto8(0 To 255) As Integer
Dim ImageID As Integer
 
oGdPictureImaging.SetLicenseNumber("XXX") 'Replace XXX by a demo or commercial license key
ImageID = oGdPictureImaging.CreateGdPictureImageFromFile("image.tif")
oGdPictureImaging.HistogramGet8Bpp(ImageID, arHisto8)
oGdPictureImaging.ReleaseGdPictureImage(ImageID)