debian man page for lqr_carver_set_alpha_channel

LQR_CARVER_SET_ALPHA_CHANNE(3)				     LqR library API reference				    LQR_CARVER_SET_ALPHA_CHANNE(3)

NAME
       lqr_carver_set_alpha_channel - sets the alpha channel index in a LqrCarver object

SYNOPSIS
       #include <lqr.h>

       LqrRetVal lqr_carver_set_alpha_channel(LqrCarver * carver, gint channel_index);

DESCRIPTION
       The function lqr_carver_set_alpha_channel sets the alpha channel index of the image stored in the LqrCarver pointed to by carver to
       channel_index (between 0 and channels - 1, where channels is the number of colour channels of the carver).

       Use a negative value for cahnnel_index to specify that no alpha channel is present.

       If the specified channel coincides with the current value of the black channel, the black channel is unset.

       Calling this function sets the image time of the carver to LQR_CUSTOM_IMAGE.

RETURN VALUE
       The return value follows the Liquid Rescale library signalling system.

SEE ALSO
       LqrImageType(3), lqr_carver_new(3), lqr_carver_set_image_type(3), lqr_carver_set_black_channel(3), lqr_carver_get_image_type(3),
       lqr_carver_get_channels(3)

COPYRIGHT
       Copyright (C) 2007-2009 Carlo Baldassi

LqR library 0.4.1 API (3:1:3)					    10 Maj 2009 				    LQR_CARVER_SET_ALPHA_CHANNE(3)