Set the value of the specified group property of type void*.
#include <screen/screen.h>
int screen_set_group_property_pv(screen_group_t grp, int pname, void **param)
The handle of the group whose property is being set.
The name of the property whose value is being set. The properties that you can set are of type Screen property types.
A pointer to a buffer containing the new value(s). This buffer must be of type void*.
Function Type: Delayed Execution
0 if the command to set the new property value(s) was queued, or -1 if an error occurred (errno is set; refer to /usr/include/errno.h for more details).