ImageMagick: MagickCore, C API for ImageMagick: Monitor the Progress of an Image Operation

SetImageProgressMonitor

SetImageProgressMonitor() sets the image progress monitor to the specified method and returns the previous progress monitor if any. The progress monitor method looks like this:

      MagickBooleanType MagickProgressMonitor(const char *text,
  const MagickOffsetType offset,const MagickSizeType extent,
  void *client_data)

If the progress monitor returns MagickFalse, the current operation is interrupted.

The format of the SetImageProgressMonitor method is:

  MagickProgressMonitor SetImageProgressMonitor(Image *image,
    const MagickProgressMonitor progress_monitor,void *client_data)

A description of each parameter follows:

image

the image.

progress_monitor

Specifies a pointer to a method to monitor progress of an image operation.

client_data

Specifies a pointer to any client data.

SetImageInfoProgressMonitor

SetImageInfoProgressMonitor() sets the image_info progress monitor to the specified method and returns the previous progress monitor if any. The progress monitor method looks like this:

      MagickBooleanType MagickProgressMonitor(const char *text,
  const MagickOffsetType offset,const MagickSizeType extent,
  void *client_data)

If the progress monitor returns MagickFalse, the current operation is interrupted.

The format of the SetImageInfoProgressMonitor method is:

  MagickProgressMonitor SetImageInfoProgressMonitor(ImageInfo *image_info,
    const MagickProgressMonitor progress_monitor,void *client_data)

A description of each parameter follows:

image_info

the image info.

progress_monitor

Specifies a pointer to a method to monitor progress of an image operation.

client_data

Specifies a pointer to any client data.