GdPictureImaging.GifSelectFrame Method

Selects a frame of a multiframe gif image. The frame can now be edited or saved to a different file.

public GdPictureStatus GifSelectFrame(
    int ImageID, 
    int Frame
);

Visual Basic

Public Function GifSelectFrame(
    ByVal ImageID As Integer, 
    ByVal Frame As Integer
) As GdPictureStatus

Parameters

Parameters	Description
ImageID	GdPicture Image Identifier. The multiframe gif image. (Can be an editable multiframe gif or a read only gif image.)
Frame	Frame no between 1 and frame count.

Returns

A member of the GdPictureStatus enumeration.

Remarks

This function works with editable multiframe gif images and with multiframe gif images opened as read only.

Related Topics

GifGetFrameCount, GifIsMultiFrame

Example

apply negative effect on all frames of an animated gif image

Copy Code

Dim i As Integer
Dim GifImageID As Integer
Dim FrameCount As Integer
 
GifImageID = oGdPictureImaging.GifCreateMultiFrameFromFile("input.gif")
FrameCount = oGdPictureImaging.GifGetFrameCount(GifImageID)
 
For i = 1 To FrameCount
    oGdPictureImaging.GifSelectFrame(GifImageID, i)
     oGdPictureImaging.FxNegative(GifImageID)
 Next i
 
 oGdPictureImaging.GifSaveMultiFrameToFile(GifImageID,  "output.gif")
 oGdPictureImaging.ReleaseGdPictureImage(GifImageID)