DwtInitializeDRM - Prepares an application to use DRM widget-fetching facilities.
The DwtInitializeDRM function must be called to prepare an application to use DRM widget-fetching facilities. You must call this function
prior to fetching a widget. However, it is good programming practice to call DwtInitializeDRM prior to performing any DRM operations.
DwtInitializeDRM initializes the internal data structures that DRM needs to successfully perform type conversion on arguments and to suc-
cessfully access widget creation facilities. An application must call DwtInitializeDRM before it uses other DRM functions. DwtInitialize-
DRM can be called more than once. All calls after the first have no effect.
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DwtFetchWidgetOverride - Fetches any indexed (UIL named) application widget. It overrides the arguments specified for this application
widget in UIL.
Cardinal DwtFetchWidgetOverride(hierarchy_id, index, parent_widget,
override_num_args, widget_return, class_return)
Specifies the ID of the UID hierarchy that contains the interface definition. The hierarchy_id was returned in a previous call
index Specifies the UIL name of the widget to fetch.
Specifies the parent widget ID.
Specifies the name to override the widget name. Use a NULL value if you do not want to override the widget name.
Specifies the override argument list, exactly as would be given to XtCreateWidget (conversion complete and so forth). Use a NULL
value if you do not want to override the argument list.
Specifies the number of arguments in override_args.
Returns the widget ID of the created widget. If this is not NULL when you call DwtFetchWidgetOverride, DRM assumes that the wid-
get has already been created and DwtFetchWidgetOverride returns DRMFailure.
Returns the class code identifying DRM's widget class. The widget class code for the main window widget, for example, is DRMwc-
MainWindow. Literals identifying DRM widget class codes are defined in DRM.h.
The DwtFetchWidgetOverride function is the extended version of DwtFetchWidget. It is identical to DwtFetchWidget, except that it allows
the caller to override the widget's name and any arguments that DwtFetchWidget would otherwise retrieve from the UID file or one of the
defaulting mechanisms. That is, the override argument list is not limited to those arguments in the UID file.
The override arguments apply only to the widget fetched and returned by this function. Its children (subtree) do not receive any override
This function returns one of these status return constants:
DRMSuccess The function executed
DRMNotFound Widget not found in UID
DRMFailure The function failed.
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