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gf_vcap_set_sync_values()

Set the video device synchronization values

Synopsis:

#include <gf/gf.h>

void gf_vcap_set_sync_values (
        gf_vcap_t   vcap,
        int         h_offset,
        int         v_offset,
        int         h_total,
        int         v_total );

Arguments:

vcap: The handle of the video capture unit, returned by gf_vcap_attach().
h_offset: Horizontal synchronization offset value.
v_offset: Vertical synchronization offset value.
h_total: Total number of pixels clocks per horizontal period.
v_total: Total number of scan lines per vertical period.

Library:

gf

Description:

This function specifies device-dependant values to allow the captured image to be synchronized and centered properly. These settings have no effect on many devices, and do not always need to be supplied.

Changes made to a capture unit via the gf_vcap_set_*() set of functions are enqueued and do not take effect until you explicitly call gf_vcap_update().

Classification:

QNX Graphics Framework

Safety:
Interrupt handler	No
Signal handler	No
Thread	Yes