capture_is_property()
Graphics and Screen4.0 (8.x)Video Capture Developer's GuideAPIProgramming
Check if the specified property is supported
Synopsis:
#include <vcapture/capture.h>int capture_is_property(capture_context_t context,
uint32_t prop)Arguments:
- context
- The pointer to the video capture context.
- prop
- The property that is in question of whether or not it's supported.
Library:
libcaptureDescription:
This function checks if the connected video capture device or driver supports the property specified in the argument prop.
Use the following code snippet as reference of how to use capture_is_property():
void get_video_info(capture_context_t context) {
char *cur_norm = NULL;
if(capture_is_property(context, CAPTURE_PROPERTY_CURRENT_NORM)) {
capture_get_property_p(context, CAPTURE_PROPERTY_CURRENT_NORM, (void **)&cur_norm);
}
fprintf(stderr, "current norm: %s", cur_norm? cur_norm : "unavailable");
fprintf(stderr, "\n");
}
Returns:
1 if the specified property is supported; or 0 otherwise.
Page updated: