MmGetSystemRoutineAddress function (wdm.h)
The MmGetSystemRoutineAddress routine returns a pointer to a function specified by SystemRoutineName.
Syntax
PVOID MmGetSystemRoutineAddress(
[in] PUNICODE_STRING SystemRoutineName
);
Parameters
[in] SystemRoutineName
Specifies the name of the system routine to resolve.
Return value
If the function name can be resolved, the routine returns a pointer to the function. Otherwise, the routine returns NULL.
Remarks
Drivers can use this routine to determine if a routine is available on a specific version of Windows. It can only be used for routines exported by the kernel or HAL, not for any driver-defined routine.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available starting with Windows 2000. |
| Target Platform | Universal |
| Header | wdm.h (include Wdm.h, Ntddk.h) |
| Library | NtosKrnl.lib |
| DLL | NtosKrnl.exe |
| IRQL | PASSIVE_LEVEL |
| DDI compliance rules | HwStorPortProhibitedDDIs(storport), PowerIrpDDis(wdm) |