C++ constructor.

Destructor

Creates a new icon of desired type. Override this to provide custom icons. Othervise default icon is used for KGSIconTypeLbxItem. Other icons are empty. Ownership of the created icon is transferred to the caller. NOTE: Return NULL if icon is not to be displayed.

Icon type UIDs (use these defined constants): KGSIconTypeLbxItem - ListBox item icon. KGSIconTypeLbxSettingsItem - Settings item icon. KGSIconTypeTab - Tab icon. KGSIconTypeDColumn - Small icon in D-column.

Reserved for future use/plugin's custom functionality. This can be overwritten if plugin needs to have custom functionality which cannot be fulfilled otherwise.

Use TGSCustomOperationType enumeration as aParam1 to define operation type.

Method for getting caption of this plugin. This should be the localized name of the settings view to be shown in parent view.

In case plug-in is loaded outside GS application and CGSPluginLoader, cleaning up plug-in's ECOM resources must be done manually.

Example: CGSPluginInterface* myPlugin = CGSPluginInterface::NewL (...); REComSession::DestroyedImplementation ( myPlugin-> GetEcomDestructorKey() ); delete myPlugin;

Function for getting plugin's value for a certain key. Override to provide own functionality.

This function is called in case plugin is an item in a settings listbox and user selects the item. Override this if plugin needs to provide functionality for item selection.

Default implementation activates the plugin.

This defines the appearance of the plugin in a parent plugin listbox. Default value is EGSItemTypeSingleLarge. Please notice that the parent listbox type cannot be defined by a child plugin so plugins using these must be aware of the parent plugin listbox type.

This function is only used for child plugins. Defines the dynamic menu item that activates this plugin from parent plugin. This menu item will override the item defined in resource file. Normally 'Open' is used to open the child plugin. Override this to change the activation to for example 'Change'. TGSMenuActivationItems defines the different possible menu items that can be used to open this plugin.

Note: This also defines MSK. Menu activation item and MSK have identical label and behaviour. An exception to this is when custom text is empty: in this case MSK is empty but there is no item in options menu (no empty item in menu).

@ return Type of the menu item and MSK that should activate this child plugin from parent plugin.

Creates new GS plugin having the given UID. Uses Leave code KErrNotFound if implementation is not found.

Method for reading the ID of the plugin provider category. See TGSPluginProviderCategory. PluginProviderCategory can be used for sorting plugins.

Default value is EGSPluginProvider3rdParty. Override this function to change the category.

Resets plugin's selected item index if this is supported. Default implementation does nothing. This is needed when navigating from child plugin back to parent plugin. In this case child plugin should reset selected index in its listbox.

Sets the Index of the plugin in listbox. Used for CGSPluginLoader. Default value is KGSPluginNotIndexed which means not ordered. This value is read, if defined, from the opaque_data field of the plugin's resource definition. Index starts from 0.

Method for checking, if plugin should be visible and used in GS FW. (for example shown in listbox of the parent view).

On default plugin is visible. Overwrite this function to enable or disable your plugin dynamically.

Category of the plugin provider. Provider's type affects the sorting of the plugins. Type EGSPluginProvider3rdParty plugins are allowed to be loaded only by Applications-plugin. Other categories may exist but they should be used only internally.

Index of the plugin in listbox. Used for CGSPluginLoader. Default value is KGSPluginNotIndexed which means not ordered. This value is read, if defined, from the opaque_data field of the plugin's resource definition. Index starts from 0.