Linux cli command XtOffset

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command XtOffset and provides detailed information about the command XtOffset, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the XtOffset.

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NAME 🖥️ XtOffset 🖥️

determine the byte offset or number of array elements

SYNTAX

#include <X11/Intrinsic.h>

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

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