GdPictureImaging.CreateGdPictureImageFromByteArray Method

Creates a new GdPicture Image from an image file stored within an array of bytes.

public int CreateGdPictureImageFromByteArray(
    ref Byte arBytes
);

Visual Basic

Public Function CreateGdPictureImageFromByteArray(
    ByRef arBytes() As Byte
) As Integer

Parameters

Parameters	Description
arBytes	Array which contains image file data.

Returns

0: The image could not created. Use the GetStat() function to determine the reason this function failed.

Non-zero: GdPicture Image Identifier. The created image.

Remarks

If success, set the created image as a GdPicture image.

Supported formats are RAW, PICT, BMP, DIB, RLE, ICO, EMF, WMF, GIF, ANIMATED GIF, JPEG, JPG, JPE, JFIF, PNG, TIFF, MULTIPAGE TIFF, PNM, PPM, PBM, PGM, PFM, RPPM, RPGM, RPBM, PCX, XPM, XBM, WBMP, TGA, SGI, Sun RAS, PSD, MNG, Kodak PhotoCD files, KOALA files, JP2, J2K, JNG, JBIG, IFF, HDR, Raw Fax G3, EXR, DDS and Dr. Halo files.

Note for multipage images (TIFF and GIF):

By default, the class loads multipage images (GIF and TIFF) as read only.

If you want to open multipage images as read & write, you should the TiffOpenMultiPageForWrite() function for tiff files or the GifOpenMultiFrameForWrite() function for gif files.

Related Topics

GetStat, SaveAsByteArray

Example

How to create an image from an array of bytes

Copy Code

Dim oFile As System.IO.FileInfo
oFile = New System.IO.FileInfo("myimage.gif")
 
Dim oFileStream As System.IO.FileStream = oFile.OpenRead()
Dim lBytes As Integer = CInt(oFileStream.Length)
 
If (lBytes > 0) Then
   Dim fileData(lBytes - 1) As Byte
   Dim ImageID As Integer
 
   oFileStream.Read(fileData, 0, lBytes)
   oFileStream.Close()
   ImageID = oGdPictureImaging.CreateGdPictureImageFromByteArray(fileData)
End If