XtNumber() XtNumber()
Name
XtNumber - determine the number of elements in a fixed-size array.
Synopsis
Cardinal XtNumber(array)
Inputs
array Specifies a fixed-size array of arbitrary type.
Returns
The number of elements in array.
Description
XtNumber() returns the number of elements in the specified argument list, resource list, or other fixed-size array. It works only for
objects which have been statically initialized or declared with a fixed number of elements, i.e., arrays whose total size is known at com-
pile time.
Usage
You should use XtNumber() whenever you are passing a static array to a function or storing an static array in a structure that also expects
the number of elements in the array. This way, if you change the number of element in the array, the correct number of elements will auto-
matically be compiled in.
Background
XtNumber() is a macro defined as follows:
#define XtNumber(arr) ((Cardinal) (sizeof(arr) / sizeof(arr[0])))
See AlsoXtOffset(1), XtOffsetOf(1), XtSetArg(1).
Xt - Argument Lists XtNumber()
Check Out this Related Man Page
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 structure.
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
compile 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
function.
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 1.1.3 XtOffset(3)
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this is kinda solved
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i have here found a very good texteditor source code programmed in the MOTIF GUI language.
For myself i need NOTHING else to program.
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