Specifies a fixed-size array.
Specifies the name of the field for which to calculate the byte offset.
Specifies a type that is declared as a pointer to the structure.
Specifies a type that is declared as a structure.
The XtOffsetOf macro expands to a constant expression that gives the offset in bytes to the specified structure member rom 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.
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