Retrieve the current value of the specified device property of type long long integer.
#include <screen/screen.h>
int screen_get_device_property_llv(screen_device_t dev,
int pname,
long long *param)
The handle of the device whose property is being queried.
The name of the property whose value is being queried. The properties available for query are of type Screen property types.
The buffer where the retrieved value(s) will be stored. This buffer must be of type long long.
Function Type: Flushing Execution
0 if a query was successful and the value(s) of the property are stored in param, or -1 if an error occurred (errno is set; refer to /usr/include/errno.h for more details). Note that the error may also have been caused by any delayed execution function that's just been flushed.