WinQueryAtomLength - Parameters

hatomtblAtomTbl (HATOMTBL) - input

Atom-table handle.

The handle returned from a previous WinCreateAtomTable or WinQuerySystemAtomTable function.

atom (ATOM) - input

Atom whose associated character-string length is to be returned.

ulretlen (ULONG) - returns

String length.
• The specified atom or the atom table is invalid. Other
  The length of the character string associated with the atom excluding the null terminating byte. Integer atoms always return a length of six.

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