118 lines
2.3 KiB
C++
118 lines
2.3 KiB
C++
/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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WaveOutUsePreferredDevice.cpp
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Abstract:
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Force the use of the preferred waveOut device (rather than a specific device)
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Notes:
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This is a general purpose shim.
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History:
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06/02/1999 robkenny Created
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(WaveOutUsePreferredDevice)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(waveOutOpen)
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APIHOOK_ENUM_ENTRY(waveOutGetDevCapsA)
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APIHOOK_ENUM_ENTRY(waveOutGetDevCapsW)
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APIHOOK_ENUM_ENTRY(wod32Message)
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APIHOOK_ENUM_END
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/*+
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Call waveOutOpen, saving dwCallback if it is a function.
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--*/
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MMRESULT APIHOOK(waveOutOpen)(
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LPHWAVEOUT phwo,
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UINT uDeviceID,
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LPWAVEFORMATEX pwfx,
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DWORD dwCallback,
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DWORD dwCallbackInstance,
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DWORD fdwOpen
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)
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{
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MMRESULT returnValue = ORIGINAL_API(waveOutOpen)(phwo, WAVE_MAPPER, pwfx, dwCallback, dwCallbackInstance, fdwOpen);
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return returnValue;
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}
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MMRESULT APIHOOK(waveOutGetDevCapsA)(
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UINT uDeviceID,
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LPWAVEOUTCAPSA pwoc,
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UINT cbwoc)
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{
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MMRESULT returnValue = ORIGINAL_API(waveOutGetDevCapsA)(WAVE_MAPPER, pwoc, cbwoc);
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return returnValue;
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}
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MMRESULT APIHOOK(waveOutGetDevCapsW)(
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UINT uDeviceID,
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LPWAVEOUTCAPSW pwoc,
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UINT cbwoc)
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{
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MMRESULT returnValue = ORIGINAL_API(waveOutGetDevCapsW)(WAVE_MAPPER, pwoc, cbwoc);
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return returnValue;
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}
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/*+
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Catch the 16 bit applications, WOW calls this routine for 16 bit apps.
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--*/
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#define WODM_GETDEVCAPS 4
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#define WODM_OPEN 5
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DWORD APIHOOK(wod32Message)(
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UINT uDeviceID,
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UINT uMessage,
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DWORD dwInstance,
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DWORD dwParam1,
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DWORD dwParam2
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)
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{
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// Change device 0 to WAVE_MAPPER for Open and GetDevCaps
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if (uDeviceID == 0) {
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if (uMessage == WODM_OPEN ||
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uMessage == WODM_GETDEVCAPS) {
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uDeviceID = -1; // Force device to WAVE_MAPPER
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}
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}
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MMRESULT returnValue = ORIGINAL_API(wod32Message)(uDeviceID, uMessage, dwInstance, dwParam1, dwParam2);
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return returnValue;
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}
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/*++
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Register hooked functions
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--*/
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HOOK_BEGIN
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APIHOOK_ENTRY(WINMM.DLL, waveOutOpen)
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APIHOOK_ENTRY(WINMM.DLL, waveOutGetDevCapsA)
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APIHOOK_ENTRY(WINMM.DLL, waveOutGetDevCapsW)
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APIHOOK_ENTRY(WINMM.DLL, wod32Message)
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HOOK_END
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IMPLEMENT_SHIM_END
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