1XtGetClassExtension(3)           XT FUNCTIONS           XtGetClassExtension(3)
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NAME

6       XtGetClassExtension - locate a class extension record
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SYNTAX

9       #include <X11/Intrinsic.h>
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11       XtPointer XtGetClassExtension(WidgetClass object_class, Cardinal
12              byte_offset, XrmQuark type, long version, Cardinal record_size);
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ARGUMENTS

15       object_class
16                 Specifies the widget class containing the extension list to
17                 be searched.
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19       byte_offset
20                 Specifies the offset in bytes form the base of the widget
21                 class of the extension field to be searched.
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23       type      Specifies the name of the class extension to be located.
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25       version   Specifies the minimum acceptable version of the class exten‐
26                 sion required for a match.
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28       record_size
29                 Specifies the minimum acceptable length of the class exten‐
30                 sion record required for match, or 0.
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DESCRIPTION

33       The list of extension records at the specified offset in the specified
34       widget_class will be searched for a match on the specified type, a ver‐
35       sion greater than or equal to the specified version, and a record size
36       greater than or equal the specified record_size if it is nonzero.
37       XtGetClassExtension returns a pointer to a matching extension record or
38       NULL if no match is found.  The returned extension record is owned by
39       the widget class and must not be modified or freed by the caller, ex‐
40       cept possibly to be modified by the widget class owner.
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SEE ALSO

43       X Toolkit Intrinsics - C Language Interface
44       Xlib - C Language X Interface
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48X Version 11                      libXt 1.2.1           XtGetClassExtension(3)
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