Source code of Windows XP (NT5)
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/*++
Copyright (c) 2001 Microsoft Corporation
Module Name:
LinksExtreme.cpp
Abstract:
This app cannot recognise the MIDI technology flags properly.
The app's internal logic cannot handle the last two technology
flags viz. MOD_WAVETABLE and MOD_SWSYNTH. If these flags are
returned by the call to MidiOutGetDevCapsA API, the app shows
a messagebox and restarts after playing for a while.(AV's).
Notes:
This is specific to this app.
History:
06/20/2001 prashkud Created
--*/
#include "precomp.h"
IMPLEMENT_SHIM_BEGIN(LinksExtreme)
#include "ShimHookMacro.h"
APIHOOK_ENUM_BEGIN
APIHOOK_ENUM_ENTRY(midiOutGetDevCapsA)
APIHOOK_ENUM_END
/*++
This stub function fixes the returned wTechnology flags.
--*/
MMRESULT
APIHOOK(midiOutGetDevCapsA)(
UINT_PTR uDeviceID,
LPMIDIOUTCAPSA pmoc,
UINT cbmoc
)
{
MMRESULT mRes = ORIGINAL_API(midiOutGetDevCapsA)(
uDeviceID,
pmoc,
cbmoc);
if (mRes == MMSYSERR_NOERROR)
{
if ((pmoc->wTechnology & MOD_WAVETABLE) ||
(pmoc->wTechnology & MOD_SWSYNTH))
{
pmoc->wTechnology &= ~MOD_WAVETABLE;
pmoc->wTechnology &= ~MOD_SWSYNTH;
// Use any of the first five wTechnology flags !!
pmoc->wTechnology |= MOD_FMSYNTH;
LOGN( eDbgLevelInfo,
"[midiOutGetDevCapsA] Fixed the wTechnology flags" );
}
}
return mRes;
}
/*++
Register hooked functions
--*/
HOOK_BEGIN
APIHOOK_ENTRY(WINMM.DLL, midiOutGetDevCapsA)
HOOK_END
IMPLEMENT_SHIM_END