screen_get_display_property_fv()
Retrieve the current value of the specified display property of type float
Synopsis:
#include <screen/screen.h>
int screen_get_display_property_fv(screen_display_t disp, int pname, float *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.
- param
-
A pointer to a buffer where this function stores the retrieved value(s). This buffer must be of type
float.
Library:
libscreenDescription:
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:
Note [1]: You must be working within a privileged context of type SCREEN_DISPLAY_MANAGER_CONTEXT to be able get set this property.
Returns:
0 if successful, or -1 if an error occurred (errno is set; refer to errno.h for more details).
Page updated: