func (cfr *cameraFileReader) Close() error {
if !cfr.closed {
// If I understand correctly, freeing the CameraFile will also free the data buffer (ie. cfr.cBuffer)
C.gp_file_free(cfr.cCameraFile)
cfr.closed = true
}
return nil
}
//DownloadImage saves image pointed by path to the provided buffer. If leave on camera is set to false,the file will be deleted from the camera internal storage
func (file *CameraFilePath) DownloadImage(buffer io.Writer, leaveOnCamera bool) error {
gpFile, err := newGpFile()
if err != nil {
return err
}
defer C.gp_file_free(gpFile)
fileDir := C.CString(file.Folder)
defer C.free(unsafe.Pointer(fileDir))
fileName := C.CString(file.Name)
defer C.free(unsafe.Pointer(fileName))
if retval := C.gp_camera_file_get(file.camera.gpCamera, fileDir, fileName, FileTypeNormal, gpFile, file.camera.gpContext); retval != gpOk {
return fmt.Errorf("Cannot download photo file, error code :%v", retval)
}
err = getFileBytes(gpFile, buffer)
if err != nil && leaveOnCamera == false {
C.gp_camera_file_delete(file.camera.gpCamera, fileDir, fileName, file.camera.gpContext)
}
return err
}