sane_start

This function initiates aquisition of an image from the device represented by handle h.

SANE_Status sane_start (SANE_Handle h);

This function may fail with one of the following status codes.

SANE_STATUS_CANCELLED:

The operation was cancelled through a call to sane_cancel.

SANE_STATUS_DEVICE_BUSY:

The device is busy. The operation should be retried later.

SANE_STATUS_JAMMED:

The document feeder is jammed.

SANE_STATUS_NO_DOCS:

The document feeder is out of documents.

SANE_STATUS_COVER_OPEN:

The scanner cover is open.

SANE_STATUS_IO_ERROR:

An error occurred while communicating with the device.

SANE_STATUS_NO_MEM:

An insufficent amount of memory is available.

SANE_STATUS_INVAL:

The scan cannot be started with the current set of options. The frontend should reload the option descriptors, as if SANE_INFO_RELOAD_OPTIONS had been returned from a call to sane_control_option(), since the device's capabilities may have changed.