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CameraWidget
Synopsis
struct CameraWidget ;
int gp_widget_new (CameraWidgetType type,
const char *label,
CameraWidget **widget);
int gp_widget_free (CameraWidget *widget);
int gp_widget_ref (CameraWidget *widget);
int gp_widget_unref (CameraWidget *widget);
int gp_widget_append (CameraWidget *widget,
CameraWidget *child);
int gp_widget_prepend (CameraWidget *widget,
CameraWidget *child);
int gp_widget_count_children (CameraWidget *widget);
int gp_widget_get_child (CameraWidget *widget,
int child_number,
CameraWidget **child);
int gp_widget_get_child_by_label (CameraWidget *widget,
const char *label,
CameraWidget **child);
int gp_widget_get_child_by_id (CameraWidget *widget,
int id,
CameraWidget **child);
int gp_widget_get_root (CameraWidget *widget,
CameraWidget **root);
int gp_widget_set_info (CameraWidget *widget,
const char *info);
int gp_widget_get_info (CameraWidget *widget,
const char **info);
int gp_widget_get_id (CameraWidget *widget,
int *id);
int gp_widget_get_type (CameraWidget *widget,
CameraWidgetType *type);
int gp_widget_get_label (CameraWidget *widget,
const char **label);
int gp_widget_set_value (CameraWidget *widget,
void *value);
int gp_widget_get_value (CameraWidget *widget,
void *value);
int gp_widget_get_range (CameraWidget *range,
float *min,
float *max,
float *increment);
int gp_widget_add_choice (CameraWidget *widget,
const char *choice);
int gp_widget_count_choices (CameraWidget *widget);
int gp_widget_get_choice (CameraWidget *widget,
int choice_number,
const char **choice);
int gp_widget_changed (CameraWidget *widget);
Details The internals of the CameraWidget are only visible to gphoto2. You can
only access them using the functions provided by gphoto2.
int gp_widget_new (CameraWidgetType type,
const char *label,
CameraWidget **widget);
The function creates a new CameraWidget of specified type and with
given label.
Increments the reference count for the CameraWidget.
Decrements the reference count for the CameraWidget:
Appends a CameraWidget to a CameraWidget.
Prepends a CameraWidget to a CameraWidget.
Counts the children of the CameraWidget.
Retrieves the child number child_number
Retrieves the child with label label
Retrieves the child with id id
Retrieves the root of the CameraWidget.
int gp_widget_set_info (CameraWidget *widget,
const char *info);
Sets the information about the widget.
int gp_widget_get_info (CameraWidget *widget,
const char **info);
Retrieves the information about the widget.
Retrieves the unique id of the CameraWidget.
int gp_widget_get_type (CameraWidget *widget,
CameraWidgetType *type);
Retrieves the type of the CameraWidget.
int gp_widget_get_label (CameraWidget *widget,
const char **label);
Retrieves the label of the CameraWidget.
int gp_widget_set_value (CameraWidget *widget,
void *value);
Sets the value of the widget. Please pass
(char*) for GP_WIDGET_MENU, GP_WIDGET_TEXT,
(float) for GP_WIDGET_RANGE,
(int) for GP_WIDGET_DATE, GP_WIDGET_TOGGLE, GP_WIDGET_RADIO, and
(CameraWidgetCallback) for GP_WIDGET_BUTTON.
int gp_widget_get_value (CameraWidget *widget,
void *value);
Retrieves the value of the CameraWidget.
int gp_widget_get_range (CameraWidget *range,
float *min,
float *max,
float *increment);
Retrieves some range parameters of the CameraWidget.
int gp_widget_add_choice (CameraWidget *widget,
const char *choice);
Adds a choice to the CameraWidget.
Counts the choices of the CameraWidget.
int gp_widget_get_choice (CameraWidget *widget,
int choice_number,
const char **choice);
Retrieves the choice number choice_number
Returns 1 if the state of the CameraWidget has been changed or 0 if not.
In addition, it resets the changed flag to 0.
