screen_get_display_property_cv()

Retrieve the current value of the specified display property of type char

Synopsis:

#include <screen/screen.h>
int screen_get_display_property_cv(screen_display_t disp,
                                   int pname,
                                   int len,
                                   char *param)

Arguments:

disp
The handle of the display 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.
len
The maximum number of bytes that can be written to param.
param
The buffer where the retrieved value(s) is stored. This buffer must be an array of type char with a minimum length of len. If the user-provided buffer has insufficient space for storing the buffer property being retrieved, the data is truncated (not necessarily with a terminating null character).

Library:

libscreen

Description:

Function Type: Flushing Execution

This function stores the current value of a display property in a user-provided buffer.

The values of the following properties can be retrieved using this function:

Returns:

0 if successful, or -1 if an error occurred (errno is set; refer to errno.h for more details).