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Manpages XtOffsetSection: XT FUNCTIONS (3Xt)Updated: Release 6.5 Index Return to Main Contents NAMEXtOffset, XtOffsetOf, XtNumber - determine the byte offset or number of array elementsSYNTAXCardinal XtOffset(pointer_type, field_name)Type pointer_type; Field field_name;
Cardinal XtOffsetOf(structure_type, field_name)
Cardinal XtNumber(array)
ARGUMENTS
DESCRIPTIONThe 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 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. SEE ALSOXtGetResourceList(3Xt), XtSetArg(3Xt)X Toolkit Intrinsics - C Language Interface Xlib - C Language X Interface
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