libgphoto2 photo camera library (libgphoto2) API: gphoto2/gphoto2-setting.h File Reference

libgphoto2 photo camera library (libgphoto2) API 2.5.33

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gphoto2-setting.h File Reference
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## Typedefs
typedef int(* | gp_settings_func) (char *, char *, char *, void *)

## Functions
void | gp_setting_set_get_func (gp_settings_func func, void *userdata)
| Set user defined function to get a gphoto setting.
void | gp_setting_set_set_func (gp_settings_func func, void *userdata)
| Set user defined function to set a gphoto setting.
int | gp_setting_set (char *id, char *key, char *value)
| Set a specific gphoto setting.
int | gp_setting_get (char *id, char *key, char *value)
| Retrieve a specific gphoto setting.

## Detailed Description

Author
  Copyright 2000 Scott Fritzinger

Note
  This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
  This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
  You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

## Function Documentation

## ◆ gp_setting_get()

int gp_setting_get | ( | char * | id,
|  | char * | key,
|  | char * | value )

Retrieve a specific gphoto setting.

Parameters

  id | the frontend id of the caller
  key | the key the frontend queries
  value | changed value

Returns
  GPhoto error code

This function retrieves the setting key for a specific frontend id and copies the value into the passed value pointer.

References GP_ERROR, and GP_OK.

## ◆ gp_setting_set()

int gp_setting_set | ( | char * | id,
|  | char * | key,
|  | char * | value )

Set a specific gphoto setting.

Parameters

  id | the frontend id of the caller
  key | the key the frontend queries
  value | new value

Returns
  GPhoto error code

This function sets the setting key for a specific frontend id to the value.

References GP_OK.

## ◆ gp_setting_set_get_func()

void gp_setting_set_get_func | ( | gp_settings_func | func,
|  | void * | userdata )

Set user defined function to get a gphoto setting.

Parameters

  func | The function to get the settings
  userdata | userdata passed to func

This function is expected to behave like gp_settings_get. To clear set func to NULL.

## ◆ gp_setting_set_set_func()

void gp_setting_set_set_func | ( | gp_settings_func | func,
|  | void * | userdata )

Set user defined function to set a gphoto setting.

Parameters

  func | The function to set the settings
  userdata | userdata passed to func

This function is expected to behave like gp_settings_set. To clear set func to NULL.