Gets the size in instructions of this disassembly stream.
HRESULT GetSize( 
   UINT64* pnSize
);
int GetSize( 
   out ulong pnSize
);
Parameters
- pnSize
[out] Returns the size, in instructions. 
Return Value
If successful, returns S_OK; otherwise, returns an error code.
Remarks
The value returned from this method can be used to allocate an array of DisassemblyData structures which is then passed to the IDebugDisassemblyStream2::Read method.