XmStringLength - A compound string function that obtains the length of a compound string
#include <Xm/Xm.h>
int XmStringLength (s1)
XmString s1;
XmStringLength obtains the length of a compound string. It returns the number of bytes in s1 including all tags, direction indicators, and separators. If the compound string has an invalid structure, zero is returned.
Returns the length of the compound string.