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Update video capture unit parameters
#include <gf/gf.h>
int gf_vcap_update (
gf_vcap_t vcap,
unsigned flags );
- vcap
- The handle of the video capture unit, returned by gf_vcap_attach().
- flags
- Flags controlling additional behavior. Valid flags are:
- GF_VCAP_UPDATE_NO_WAIT_VSYNC
- Perform the operation asynchronously; the default behavior is to wait until the current frame has finished being captured before performing the update.
gf
This function updates a video capture unit's parameters. 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 this function.
The status of the operation:
- GF_ERR_OK
- Success
- GF_ERR_IODISPLAY
- Error communicating with io-display. Check to ensure io-display is still running. The sloginfo utility may provide more information.
QNX Graphics Framework
Safety: | |
Interrupt handler |
No |
Signal handler |
No |
Thread |
Yes |
gf_vcap_attach()
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