Retrieve the current value of the specified device property of type long long integer
Synopsis:
#include <screen/screen.h>
int screen_get_device_property_llv(screen_device_t dev,
int pname,
long long *param)
Arguments:
- dev
- The handle of the device whose property is being queried.
- pname
- The name of the property whose value is being queried. The properties available for query are of type Screen property types.
- param
- The buffer where the retrieved value(s) is stored. This buffer must be of type long long.
Library:
libscreen
Description:
Function Type: Flushing Execution
This function stores the current value of a device property in a user-provided buffer. The values of the following properties can be queried using this function:
Returns:
0 if successful, or -1 if an error occurred (errno is set; refer to errno.h for more details).