WOWGetVDMPointer
The WOWGetVDMPointer function converts a 16:16 address to the equivalent linear address. This function can only be called in the context of a thunk.
LPVOID WINAPI WOWGetVDMPointer(
DWORD vp,
DWORD dwBytes,
BOOL fProtectedMode
);
Parameters
- vp
[in] Valid 16:16 address. - dwBytes
[in] Size of the block pointed to by vp. - fProtectedMode
[in] Specifies the mode. This parameter can be one of the following values.Value Meaning 0 The upper 16 bits are treated as a real-mode segment value (real-mode 16:16 pointer). 1 The upper 16 bits are treated as a selector in the local descriptor table (16-bit protected mode pointer).
Return Value
Returns a 32-bit address if successful. If the function is invalid, the return value is NULL.
Remarks
Limit checking is performed only in the checked (debugging) build of WOW32.DLL, which will cause NULL to be returned when the limit is exceeded by the supplied offset.
**Windows Me/98/95: **This function should never be used on a 16-bit global memory handle selector that has not been previously fixed in memory by using the GlobalFix or GlobalWire function. You should assume that global compaction can occur at any time the Win16Mutex is not owned by the current thread.
Requirements
| Client | Requires Windows XP, Windows 2000 Professional, Windows NT Workstation, Windows Me, Windows 98, or Windows 95. |
| Server | Requires Windows Server 2003, Windows 2000 Server, or Windows NT Server. |
| Header | Declared in Wownt32.h. |
| Library | Use Wow32.lib. |
| DLL | Requires Wow32.dll. |