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XtOffset(3)			 XT FUNCTIONS			   XtOffset(3)

NAME
       XtOffset, XtOffsetOf, XtNumber -	determine the byte offset or number of
       array elements

SYNTAX
       Cardinal	XtOffset(Type pointer_type, Field field_name);

       Cardinal	XtOffsetOf(Type	structure_type,	Field field_name);

       Cardinal	XtNumber(ArrayVariable array);

ARGUMENTS
       array	 Specifies a fixed-size	array.

       field_name
		 Specifies the name of the field for which to calculate	the
		 byte offset.

       pointer_type
		 Specifies a type that is declared as a	pointer	to the struc-
		 ture.

       structure_type
		 Specifies a type that is declared as a	structure.

DESCRIPTION
       The XtOffset macro is usually used to determine the offset of various
       resource	fields from the	beginning of a widget and can be used at com-
       pile time in static initializations.

       The XtOffsetOf macro expands to a constant expression that gives	the
       offset in bytes to the specified	structure member from the beginning of
       the structure.  It is normally used to statically initialize resource
       lists and is more portable than XtOffset, which serves the same func-
       tion.

       The XtNumber macro returns the number of	elements in the	specified
       argument	lists, resources lists,	and other counted arrays.

SEE ALSO
       XtGetResourceList(3), XtSetArg(3)
       X Toolkit Intrinsics - C	Language Interface
       Xlib - C	Language X Interface

X Version 11			  libXt	1.1.5			   XtOffset(3)

NAME | SYNTAX | ARGUMENTS | DESCRIPTION | SEE ALSO

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