screen_get_context_property_pv()
Retrieve the current value of the specified context property of type void*.
Synopsis:
#include <screen/screen.h>
int screen_get_context_property_pv(screen_context_t ctx, int pname, void **param)
Arguments:
- ctx
-
The handle of the context 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) will be stored. This buffer must be of type void*.
Library:
libscreenDescription:
Function Type: Flushing Execution
This function stores the current value of a context property in a user-provided buffer.
The values of the following properties can be retrieved using this function:
Returns:
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).