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X11R7.4 - man page for xtgetclassextension (x11r4 section 3)

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XtGetClassExtension(3)			   XT FUNCTIONS 		   XtGetClassExtension(3)

       XtGetClassExtension - locate a class extension record

       XtPointer XtGetClassExtension(WidgetClass object_class, Cardinal byte_offset, XrmQuark
	      type, long version, Cardinal record_size);

		 Specifies the widget class containing the extension list to be searched.

		 Specifies the offset in bytes form the base of the widget class of the extension
		 field to be searched.

       type	 Specifies the name of the class extension to be located.

       version	 Specifies the minimum acceptable version of the class extension required for a

		 Specifies the minimum acceptable length of the class extension record required
		 for match, or 0.

       The list of extension records at the specified offset in the specified widget_class will
       be searched for a match on the specified type, a version greater than or equal to the
       specified version, and a record size greater than or equal the specified record_size if it
       is nonzero.  XtGetClassExtension returns a pointer to a matching extension record or NULL
       if no match is found. The returned extension record is owned by the widget class and must
       not be modified or freed by the caller, except possibly to be modified by the widget class

       X Toolkit Intrinsics - C Language Interface
       Xlib - C Language X Interface

X Version 11				   libXt 1.0.5			   XtGetClassExtension(3)
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