XtOffset(3Xt) X11R5 XtOffset(3Xt)NAME
XtOffset, XtNumber - determine the byte offset or number of array ele‐
ments
SYNTAX
Cardinal XtOffset(pointer_type, field_name)
Type pointer_type;
Field field_name;
Cardinal XtNumber(array)
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.
DESCRIPTION
The 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 macro returns the number of elements in the specified argument
lists, resources lists, and other counted arrays.
SEE ALSOXtGetResourceList(3Xt), XtSetArg(3Xt)
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
XtOffset(3Xt)