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821 lines
28 KiB
ReStructuredText
821 lines
28 KiB
ReStructuredText
Properties API Reference (obs_properties_t)
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===========================================
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Properties are used to enumerate available settings for a libobs object.
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Typically this is used to automatically generate user interface widgets,
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though can be used to enumerate available and/or valid values for
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specific settings as well.
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.. type:: obs_properties_t
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Properties object (not reference counted).
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.. type:: obs_property_t
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A property object (not reference counted).
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.. code:: cpp
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#include <obs.h>
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General Functions
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-----------------
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.. function:: obs_properties_t *obs_properties_create(void)
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:return: A new properties object.
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---------------------
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.. function:: obs_properties_t *obs_properties_create_param(void *param, void (*destroy)(void *param))
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Creates a new properties object with specific private data *param*
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associated with the object, and is automatically freed with the
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object when the properties are destroyed via the *destroy* function.
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:return: A new properties object.
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---------------------
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.. function:: void obs_properties_destroy(obs_properties_t *props)
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---------------------
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.. function:: void obs_properties_set_flags(obs_properties_t *props, uint32_t flags)
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uint32_t obs_properties_get_flags(obs_properties_t *props)
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:param flags: 0 or a bitwise OR combination of one of the following
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values:
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- OBS_PROPERTIES_DEFER_UPDATE - A hint that tells the
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front-end to defers updating the settings until the
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user has finished editing all properties rather than
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immediately updating any settings
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---------------------
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.. function:: void obs_properties_set_param(obs_properties_t *props, void *param, void (*destroy)(void *param))
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void *obs_properties_get_param(obs_properties_t *props)
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Sets custom data associated with this properties object. If private
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data is already associated with the object, that private data will be
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destroyed before assigning new private data to it.
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---------------------
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.. function:: void obs_properties_apply_settings(obs_properties_t *props, obs_data_t *settings)
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Applies settings to the properties by calling all the necessary
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modification callbacks
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---------------------
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.. function:: obs_properties_t *obs_properties_get_parent(obs_properties_t *props)
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---------------------
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.. function:: void obs_properties_remove_by_name(obs_properties_t *props, const char *property)
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Removes a property from a properties list. Only valid in ``get_properties``,
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``script_properties`` for scripts, ``modified_callback``, and ``modified_callback2``.
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``modified_callback`` and ``modified_callback2`` *must* return true so that
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all UI properties are rebuilt. Returning false is undefined behavior.
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:param props: Properties to remove from.
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:param property: Name of the property to remove.
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---------------------
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Property Object Functions
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-------------------------
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.. function:: obs_property_t *obs_properties_add_bool(obs_properties_t *props, const char *name, const char *description)
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Adds a boolean property.
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:param name: Setting identifier string
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:param description: Localized name shown to user
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:return: The property
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---------------------
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.. function:: obs_property_t *obs_properties_add_int(obs_properties_t *props, const char *name, const char *description, int min, int max, int step)
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Adds an integer property.
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:param name: Setting identifier string
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:param description: Localized name shown to user
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:param min: Minimum value
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:param max: Maximum value
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:param step: Step value
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:return: The property
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---------------------
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.. function:: obs_property_t *obs_properties_add_float(obs_properties_t *props, const char *name, const char *description, double min, double max, double step)
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:param name: Setting identifier string
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:param description: Localized name shown to user
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:param min: Minimum value
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:param max: Maximum value
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:param step: Step value
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:return: The property
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---------------------
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.. function:: obs_property_t *obs_properties_add_int_slider(obs_properties_t *props, const char *name, const char *description, int min, int max, int step)
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:param name: Setting identifier string
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:param description: Localized name shown to user
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:param min: Minimum value
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:param max: Maximum value
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:param step: Step value
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:return: The property
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---------------------
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.. function:: obs_property_t *obs_properties_add_float_slider(obs_properties_t *props, const char *name, const char *description, double min, double max, double step)
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:param name: Setting identifier string
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:param description: Localized name shown to user
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:param min: Minimum value
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:param max: Maximum value
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:param step: Step value
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:return: The property
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---------------------
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.. function:: obs_property_t *obs_properties_add_text(obs_properties_t *props, const char *name, const char *description, enum obs_text_type type)
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:param name: Setting identifier string
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:param description: Localized name shown to user
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:param type: Can be one of the following values:
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- **OBS_TEXT_DEFAULT** - Single line of text
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- **OBS_TEXT_PASSWORD** - Single line of text (passworded)
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- **OBS_TEXT_MULTILINE** - Multi-line text
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- **OBS_TEXT_INFO** - Read-only informative text, behaves differently
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depending on wether description, string value and long description
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are set
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:return: The property
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Important Related Functions:
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- :c:func:`obs_property_text_set_info_type`
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- :c:func:`obs_property_text_set_info_word_wrap`
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---------------------
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.. function:: obs_property_t *obs_properties_add_path(obs_properties_t *props, const char *name, const char *description, enum obs_path_type type, const char *filter, const char *default_path)
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Adds a 'path' property. Can be a directory or a file.
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If target is a file path, the filters should be this format, separated by
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double semicolons, and extensions separated by space::
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"Example types 1 and 2 (*.ex1 *.ex2);;Example type 3 (*.ex3)"
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:param name: Setting identifier string
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:param description: Localized name shown to user
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:param type: Can be one of the following values:
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- **OBS_PATH_FILE** - File (for reading)
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- **OBS_PATH_FILE_SAVE** - File (for writing)
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- **OBS_PATH_DIRECTORY** - Directory
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:param filter: If type is a file path, then describes the file filter
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that the user can browse. Items are separated via
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double semicolons. If multiple file types in a
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filter, separate with space.
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:param default_path: The default path to start in, or *NULL*
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:return: The property
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---------------------
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.. function:: obs_property_t *obs_properties_add_list(obs_properties_t *props, const char *name, const char *description, enum obs_combo_type type, enum obs_combo_format format)
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Adds an integer/string/floating point item list. This would be
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implemented as a combo box in user interface.
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:param name: Setting identifier string
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:param description: Localized name shown to user
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:param type: Can be one of the following values:
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- **OBS_COMBO_TYPE_EDITABLE** - Can be edited.
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Only used with string lists.
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- **OBS_COMBO_TYPE_LIST** - Not editable. Displayed as combo box.
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- **OBS_COMBO_TYPE_RADIO** - Not editable. Displayed as radio buttons.
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:param format: Can be one of the following values:
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- **OBS_COMBO_FORMAT_INT** - Integer list
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- **OBS_COMBO_FORMAT_FLOAT** - Floating point
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list
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- **OBS_COMBO_FORMAT_STRING** - String list
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- **OBS_COMBO_FORMAT_BOOL** - Boolean list
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:return: The property
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Important Related Functions:
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- :c:func:`obs_property_list_add_string`
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- :c:func:`obs_property_list_add_int`
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- :c:func:`obs_property_list_add_float`
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- :c:func:`obs_property_list_insert_string`
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- :c:func:`obs_property_list_insert_int`
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- :c:func:`obs_property_list_insert_float`
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- :c:func:`obs_property_list_item_remove`
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- :c:func:`obs_property_list_clear`
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---------------------
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.. function:: obs_property_t *obs_properties_add_color(obs_properties_t *props, const char *name, const char *description)
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Adds a color property without alpha (stored internally with an alpha value of 255).
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The color can be retrieved from an :c:type:`obs_data_t` object by using :c:func:`obs_data_get_int()`.
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:param name: Setting identifier string
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:param description: Localized name shown to user
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:return: The property
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---------------------
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.. function:: obs_property_t *obs_properties_add_color_alpha(obs_properties_t *props, const char *name, const char *description)
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Adds a color property with alpha. The color can be retrieved from an
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:c:type:`obs_data_t` object by using :c:func:`obs_data_get_int()`.
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:param name: Setting identifier string
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:param description: Localized name shown to user
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:return: The property
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---------------------
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.. function:: obs_property_t *obs_properties_add_button(obs_properties_t *props, const char *name, const char *text, obs_property_clicked_t callback)
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obs_property_t *obs_properties_add_button2(obs_properties_t *props, const char *name, const char *text, obs_property_clicked_t callback, void *priv)
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Adds a button property. This property does not actually store any
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settings; it's used to implement a button in user interface if the
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properties are used to generate user interface.
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If the properties need to be refreshed due to changes to the property layout,
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the callback should return true, otherwise return false.
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:param name: Setting identifier string
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:param text: Localized name shown to user
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:param callback: Callback to be executed when the button is pressed
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:param priv: Pointer passed back as the `data` argument of the callback
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:return: The property
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Important Related Functions:
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- :c:func:`obs_property_button_set_type`
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- :c:func:`obs_property_button_set_url`
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For scripting, use :py:func:`obs_properties_add_button`.
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Relevant data types used with this function:
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.. code:: cpp
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typedef bool (*obs_property_clicked_t)(obs_properties_t *props,
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obs_property_t *property, void *data);
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---------------------
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.. function:: obs_property_t *obs_properties_add_font(obs_properties_t *props, const char *name, const char *description)
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Adds a font property. The font can be retrieved from an :c:type:`obs_data_t`
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object by using :c:func:`obs_data_get_obj()`.
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:param name: Setting identifier string
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:param description: Localized name shown to user
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:return: The property
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---------------------
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.. function:: obs_property_t *obs_properties_add_editable_list(obs_properties_t *props, const char *name, const char *description, enum obs_editable_list_type type, const char *filter, const char *default_path)
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Adds a list in which the user can add/insert/remove items. The items can be
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retrieved from an :c:type:`obs_data_t` object by using :c:func:`obs_data_get_array()`.
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:param name: Setting identifier string
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:param description: Localized name shown to user
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:param type: Can be one of the following values:
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- **OBS_EDITABLE_LIST_TYPE_STRINGS** - An
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editable list of strings.
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- **OBS_EDITABLE_LIST_TYPE_FILES** - An
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editable list of files.
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- **OBS_EDITABLE_LIST_TYPE_FILES_AND_URLS** -
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An editable list of files and URLs.
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:param filter: File filter to use if a file list
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:param default_path: Default path if a file list
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:return: The property
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---------------------
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.. function:: obs_property_t *obs_properties_add_frame_rate(obs_properties_t *props, const char *name, const char *description)
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Adds a frame rate property.
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:param name: Setting identifier string
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:param description: Localized name shown to user
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:return: The property
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Important Related Functions:
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- :c:func:`obs_property_frame_rate_option_add`
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- :c:func:`obs_property_frame_rate_fps_range_add`
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- :c:func:`obs_property_frame_rate_option_insert`
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- :c:func:`obs_property_frame_rate_fps_range_insert`
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---------------------
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.. function:: obs_property_t *obs_properties_add_group(obs_properties_t *props, const char *name, const char *description, enum obs_group_type type, obs_properties_t *group)
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Adds a property group.
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:param name: Setting identifier string
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:param description: Localized name shown to user
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:param type: Can be one of the following values:
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- **OBS_GROUP_NORMAL** - A normal group with just a name and content.
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- **OBS_GROUP_CHECKABLE** - A checkable group with a checkbox, name and content.
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:param group: Group to add
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:return: The property
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Important Related Functions:
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- :c:func:`obs_property_group_type`
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- :c:func:`obs_property_group_content`
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- :c:func:`obs_properties_get_parent`
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---------------------
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Property Enumeration Functions
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------------------------------
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.. function:: obs_property_t *obs_properties_first(obs_properties_t *props)
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:return: The first property in the properties object.
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---------------------
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.. function:: obs_property_t *obs_properties_get(obs_properties_t *props, const char *property)
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:param property: The name of the property to get
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:return: A specific property or *NULL* if not found
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---------------------
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.. function:: bool obs_property_next(obs_property_t **p)
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:param p: Pointer to the pointer of the next property
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:return: *true* if successful, *false* if no more properties
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---------------------
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.. function:: const char * obs_property_name(obs_property_t *p)
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:return: The setting identifier string of the property
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*(Author's Note: "name" was a bad name to use here. Should have been
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"setting")*
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---------------------
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.. function:: const char * obs_property_description(obs_property_t *p)
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:return: The actual localized display name of the property
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*(Author's note: This one should have been the "name")*
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---------------------
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.. function:: const char * obs_property_long_description(obs_property_t *p)
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:return: A detailed description of what the setting is used for.
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Usually used with things like tooltips.
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---------------------
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.. function:: enum obs_property_type obs_property_get_type(obs_property_t *p)
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:return: One of the following values:
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- OBS_PROPERTY_INVALID
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- OBS_PROPERTY_BOOL
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- OBS_PROPERTY_INT
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- OBS_PROPERTY_FLOAT
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- OBS_PROPERTY_TEXT
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- OBS_PROPERTY_PATH
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- OBS_PROPERTY_LIST
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- OBS_PROPERTY_COLOR
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- OBS_PROPERTY_BUTTON
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- OBS_PROPERTY_FONT
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- OBS_PROPERTY_EDITABLE_LIST
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- OBS_PROPERTY_FRAME_RATE
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- OBS_PROPERTY_GROUP
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---------------------
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.. function:: bool obs_property_enabled(obs_property_t *p)
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---------------------
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.. function:: bool obs_property_visible(obs_property_t *p)
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---------------------
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.. function:: int obs_property_int_min(obs_property_t *p)
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---------------------
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.. function:: int obs_property_int_max(obs_property_t *p)
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---------------------
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.. function:: int obs_property_int_step(obs_property_t *p)
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---------------------
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.. function:: enum obs_number_type obs_property_int_type(obs_property_t *p)
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---------------------
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.. function:: const char * obs_property_int_suffix(obs_property_t *p)
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---------------------
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.. function:: double obs_property_float_min(obs_property_t *p)
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---------------------
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.. function:: double obs_property_float_max(obs_property_t *p)
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---------------------
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.. function:: double obs_property_float_step(obs_property_t *p)
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---------------------
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.. function:: enum obs_number_type obs_property_float_type(obs_property_t *p)
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---------------------
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.. function:: const char * obs_property_float_suffix(obs_property_t *p)
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---------------------
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.. function:: enum obs_text_type obs_property_text_type(obs_property_t *p)
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---------------------
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.. function:: bool obs_property_text_monospace(obs_property_t *p)
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Returns whether the input of the text property should be rendered
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with a monospace font or not. Only has an effect if the text type
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of the property is ``OBS_TEXT_MULTILINE``, even if this returns *true*.
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---------------------
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.. function:: enum obs_text_info_type obs_property_text_info_type(obs_property_t *p)
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:return: One of the following values:
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- OBS_TEXT_INFO_NORMAL
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- OBS_TEXT_INFO_WARNING
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- OBS_TEXT_INFO_ERROR
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---------------------
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.. function:: bool obs_property_text_info_word_wrap(obs_property_t *p)
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---------------------
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.. function:: enum obs_path_type obs_property_path_type(obs_property_t *p)
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---------------------
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.. function:: const char * obs_property_path_filter(obs_property_t *p)
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---------------------
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.. function:: const char * obs_property_path_default_path(obs_property_t *p)
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---------------------
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.. function:: enum obs_combo_type obs_property_list_type(obs_property_t *p)
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---------------------
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.. function:: enum obs_combo_format obs_property_list_format(obs_property_t *p)
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---------------------
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.. function:: bool obs_property_list_item_disabled(obs_property_t *p, size_t idx)
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---------------------
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.. function:: size_t obs_property_list_item_count(obs_property_t *p)
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---------------------
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.. function:: const char *obs_property_list_item_name(obs_property_t *p, size_t idx)
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---------------------
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.. function:: const char *obs_property_list_item_string(obs_property_t *p, size_t idx)
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---------------------
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.. function:: long long obs_property_list_item_int(obs_property_t *p, size_t idx)
|
|
|
|
---------------------
|
|
|
|
.. function:: double obs_property_list_item_float(obs_property_t *p, size_t idx)
|
|
|
|
---------------------
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|
|
|
.. function:: enum obs_editable_list_type obs_property_editable_list_type(obs_property_t *p)
|
|
|
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---------------------
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|
|
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.. function:: const char *obs_property_editable_list_filter(obs_property_t *p)
|
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|
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---------------------
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|
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.. function:: const char *obs_property_editable_list_default_path(obs_property_t *p)
|
|
|
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---------------------
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|
.. function:: size_t obs_property_frame_rate_options_count(obs_property_t *p)
|
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|
|
---------------------
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|
.. function:: const char *obs_property_frame_rate_option_name(obs_property_t *p, size_t idx)
|
|
|
|
---------------------
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.. function:: const char *obs_property_frame_rate_option_description( obs_property_t *p, size_t idx)
|
|
|
|
---------------------
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|
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.. function:: size_t obs_property_frame_rate_fps_ranges_count(obs_property_t *p)
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|
|
|
---------------------
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|
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.. function:: struct media_frames_per_second obs_property_frame_rate_fps_range_min( obs_property_t *p, size_t idx)
|
|
|
|
---------------------
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|
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|
.. function:: struct media_frames_per_second obs_property_frame_rate_fps_range_max( obs_property_t *p, size_t idx)
|
|
|
|
---------------------
|
|
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|
.. function:: enum obs_button_type obs_property_button_type(obs_property_t *p)
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|
|
:return: One of the following values:
|
|
|
|
- OBS_BUTTON_DEFAULT
|
|
- OBS_BUTTON_URL
|
|
|
|
---------------------
|
|
|
|
.. function:: const char *obs_property_button_url(obs_property_t *p)
|
|
|
|
---------------------
|
|
|
|
.. function:: enum obs_group_type obs_property_group_type(obs_property_t *p)
|
|
|
|
:return: One of the following values:
|
|
|
|
- OBS_COMBO_INVALID
|
|
- OBS_GROUP_NORMAL
|
|
- OBS_GROUP_CHECKABLE
|
|
|
|
---------------------
|
|
|
|
.. function:: obs_properties_t *obs_property_group_content(obs_property_t *p)
|
|
|
|
---------------------
|
|
|
|
|
|
Property Modification Functions
|
|
-------------------------------
|
|
|
|
.. function:: void obs_property_set_modified_callback(obs_property_t *p, obs_property_modified_t modified)
|
|
void obs_property_set_modified_callback2(obs_property_t *p, obs_property_modified2_t modified2, void *priv)
|
|
|
|
Allows the ability to change the properties depending on what
|
|
settings are used by the user. The callback should return ``true``
|
|
if the property widgets need to be refreshed due to changes to the
|
|
property layout.
|
|
|
|
Relevant data types used with these functions:
|
|
|
|
.. code:: cpp
|
|
|
|
typedef bool (*obs_property_modified_t)(obs_properties_t *props,
|
|
obs_property_t *property, obs_data_t *settings);
|
|
typedef bool (*obs_property_modified2_t)(void *priv,
|
|
obs_properties_t *props, obs_property_t *property,
|
|
obs_data_t *settings);
|
|
|
|
---------------------
|
|
|
|
.. function:: bool obs_property_modified(obs_property_t *p, obs_data_t *settings)
|
|
|
|
---------------------
|
|
|
|
.. function:: bool obs_property_button_clicked(obs_property_t *p, void *obj)
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_set_visible(obs_property_t *p, bool visible)
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_set_enabled(obs_property_t *p, bool enabled)
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_set_description(obs_property_t *p, const char *description)
|
|
|
|
Sets the displayed localized name of the property, shown to the user.
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_set_long_description(obs_property_t *p, const char *long_description)
|
|
|
|
Sets the localized long description of the property, usually shown to
|
|
a user via tooltip.
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_int_set_limits(obs_property_t *p, int min, int max, int step)
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_float_set_limits(obs_property_t *p, double min, double max, double step)
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_int_set_suffix(obs_property_t *p, const char *suffix)
|
|
|
|
Adds a suffix to the int property, such that 100 will show up
|
|
as "100ms" if the suffix is "ms". The user will only be able
|
|
to edit the number, not the suffix.
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_float_set_suffix(obs_property_t *p, const char *suffix)
|
|
|
|
Adds a suffix to the float property, such that 1.5 will show up
|
|
as "1.5s" if the suffix is "s". The user will only be able
|
|
to edit the number, not the suffix.
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_text_set_monospace(obs_property_t *p, bool monospace)
|
|
|
|
Sets whether the input of text property should be rendered with
|
|
a monospace font or not. Only has an effect if the text type of
|
|
the property is ``OBS_TEXT_MULTILINE``.
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_text_set_info_type(obs_property_t *p, enum obs_text_info_type type)
|
|
|
|
:param type: Can be one of the following values:
|
|
|
|
- **OBS_TEXT_INFO_NORMAL** - To show a basic message
|
|
- **OBS_TEXT_INFO_WARNING** - To show a warning
|
|
- **OBS_TEXT_INFO_ERROR** - To show an error
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_text_set_info_word_wrap(obs_property_t *p, bool word_wrap)
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_list_clear(obs_property_t *p)
|
|
|
|
---------------------
|
|
|
|
.. function:: size_t obs_property_list_add_string(obs_property_t *p, const char *name, const char *val)
|
|
|
|
Adds a string to a string list.
|
|
|
|
:param name: Localized name shown to user
|
|
:param val: The actual string value stored and will be returned by :c:func:`obs_data_get_string`
|
|
:returns: The index of the list item.
|
|
|
|
---------------------
|
|
|
|
.. function:: size_t obs_property_list_add_int(obs_property_t *p, const char *name, long long val)
|
|
|
|
Adds an integer to a integer list.
|
|
|
|
:param name: Localized name shown to user
|
|
:param val: The actual int value stored and will be returned by :c:func:`obs_data_get_int`
|
|
:returns: The index of the list item.
|
|
|
|
---------------------
|
|
|
|
.. function:: size_t obs_property_list_add_float(obs_property_t *p, const char *name, double val)
|
|
|
|
Adds a floating point to a floating point list.
|
|
|
|
:param name: Localized name shown to user
|
|
:param val: The actual float value stored and will be returned by :c:func:`obs_data_get_double`
|
|
:returns: The index of the list item.
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_list_insert_string(obs_property_t *p, size_t idx, const char *name, const char *val)
|
|
|
|
Inserts a string in to a string list.
|
|
|
|
:param idx: The index of the list item
|
|
:param name: Localized name shown to user
|
|
:param val: The actual string value stored and will be returned by :c:func:`obs_data_get_string`
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_list_insert_int(obs_property_t *p, size_t idx, const char *name, long long val)
|
|
|
|
Inserts an integer in to an integer list.
|
|
|
|
:param idx: The index of the list item
|
|
:param name: Localized name shown to user
|
|
:param val: The actual int value stored and will be returned by :c:func:`obs_data_get_int`
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_list_insert_float(obs_property_t *p, size_t idx, const char *name, double val)
|
|
|
|
Inserts a floating point in to a floating point list.
|
|
|
|
:param idx: The index of the list item.
|
|
:param name: Localized name shown to user
|
|
:param val: The actual float value stored and will be returned by :c:func:`obs_data_get_double`
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_list_item_disable(obs_property_t *p, size_t idx, bool disabled)
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_list_item_remove(obs_property_t *p, size_t idx)
|
|
|
|
---------------------
|
|
|
|
.. function:: size_t obs_property_frame_rate_option_add(obs_property_t *p, const char *name, const char *description)
|
|
|
|
---------------------
|
|
|
|
.. function:: size_t obs_property_frame_rate_fps_range_add(obs_property_t *p, struct media_frames_per_second min, struct media_frames_per_second max)
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_frame_rate_clear(obs_property_t *p)
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_frame_rate_options_clear(obs_property_t *p)
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_frame_rate_fps_ranges_clear(obs_property_t *p)
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_frame_rate_option_insert(obs_property_t *p, size_t idx, const char *name, const char *description)
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_frame_rate_fps_range_insert(obs_property_t *p, size_t idx, struct media_frames_per_second min, struct media_frames_per_second max)
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_button_set_type(obs_property_t *p, enum obs_button_type type)
|
|
|
|
:param type: Can be one of the following values:
|
|
|
|
- **OBS_BUTTON_DEFAULT** - Standard button
|
|
- **OBS_BUTTON_URL** - Button that opens a URL
|
|
:return: The property
|
|
|
|
---------------------
|
|
|
|
.. function:: void obs_property_button_set_url(obs_property_t *p, char *url)
|