GetPreviousProtocolOffsetByName function
The GetPreviousProtocolOffsetByName function returns the previous instance of a given protocol.
Syntax
DWORD WINAPI GetPreviousProtocolOffsetByName(
_In_ HFRAME hFrame,
_In_ DWORD dwStartOffset,
_In_ LPSTR szProtocolName,
_Out_ DWORD *pdwPreviousOffset
);
Parameters
-
hFrame [in]
-
Handle to the frame.
-
dwStartOffset [in]
-
Offset in the frame.
-
szProtocolName [in]
-
Name of the protocol you want to search for.
-
pdwPreviousOffset [out]
-
Pointer to a DWORD that contains the offset to the previous protocol (if the function succeeds).
Return value
If the function is successful, the return value is NMERR_SUCCESS.
If the function is unsuccessful, the return value is NMERR_PROTOCOL_NOT_FOUND.
Remarks
Experts and parsers can call the GetPreviousProtocolOffsetByName.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|
| Library |
|
| DLL |
|