VarUI8FromUI4 function (oleauto.h)

Converts an unsigned long value to an 8-byte unsigned integer value.

Syntax

HRESULT VarUI8FromUI4(
  [in]  ULONG   ulIn,
  [out] ULONG64 *pi64Out
);

[in] ulIn

The value to convert.

[out] pi64Out

The resulting value.

This function can return one of these values.

Return code	Description
S_OK	Success.
DISP_E_BADVARTYPE	The input parameter is not a valid type of variant.
DISP_E_OVERFLOW	The data pointed to by the output parameter does not fit in the destination type.
DISP_E_TYPEMISMATCH	The argument could not be coerced to the specified type.
E_INVALIDARG	One of the arguments is not valid.
E_OUTOFMEMORY	Insufficient memory to complete the operation.