IDiaPropertyStorage::ReadLONG
Reads LONG values in a property set.
HRESULT ReadDLONG (
PROPID id,
LONG* pValue
);
Parameters
id
[in] Identifier of the property to be read (PROPID is defined in WTypes.h as a ULONG).pValue
[out] Returns the property value.
Return Value
If successful, returns S_OK; otherwise returns an error code. Returns E_INVALIDARG if the property is not of type LONG.
Remarks
A LONG is defined by Windows as a 32-bit signed integer.