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68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS Base API Server DLL
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* FILE: subsystems/win/basesrv/sndsntry.c
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* PURPOSE: Sound Sentry Notifications
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* PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
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*/
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/* INCLUDES *******************************************************************/
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#include "basesrv.h"
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#define NDEBUG
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#include <debug.h>
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/* GLOBALS ********************************************************************/
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typedef BOOL (NTAPI *PUSER_SOUND_SENTRY)(VOID);
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BOOL NTAPI FirstSoundSentry(VOID);
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static PUSER_SOUND_SENTRY _UserSoundSentry = FirstSoundSentry;
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/* PRIVATE FUNCTIONS **********************************************************/
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BOOL
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NTAPI
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FailSoundSentry(VOID)
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{
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/* In case the function can't be found/is unimplemented */
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return FALSE;
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}
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BOOL
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NTAPI
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FirstSoundSentry(VOID)
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{
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UNICODE_STRING DllString = RTL_CONSTANT_STRING(L"winsrv");
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STRING FuncString = RTL_CONSTANT_STRING("_UserSoundSentry");
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HANDLE DllHandle;
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NTSTATUS Status;
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PUSER_SOUND_SENTRY NewSoundSentry = FailSoundSentry;
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/* Load winsrv manually */
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Status = LdrGetDllHandle(NULL, NULL, &DllString, &DllHandle);
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if (NT_SUCCESS(Status))
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{
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/* If it was found, get SoundSentry export */
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Status = LdrGetProcedureAddress(DllHandle,
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&FuncString,
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0,
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(PVOID*)&NewSoundSentry);
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}
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/* Set it as the callback for the future, and call it */
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_UserSoundSentry = NewSoundSentry;
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return _UserSoundSentry();
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}
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/* PUBLIC SERVER APIS *********************************************************/
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CSR_API(BaseSrvSoundSentryNotification)
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{
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/* Call the API and see if it succeeds */
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return (_UserSoundSentry() ? STATUS_SUCCESS : STATUS_ACCESS_DENIED);
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}
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/* EOF */
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