77 lines
1.4 KiB
C++
77 lines
1.4 KiB
C++
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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UrbanChaos.cpp
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Abstract:
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The sound system (Miles) uses a very high-resolution timer: 32ms. The app
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has badly designed message loop code. Instead of running everything off the
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loop, they have their movie playing code interspersed with a call to
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empty the queue. Unfortunately for them, the queue on NT is almost always
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filled with these timer messages, so their code to keep track of how far
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along their movie is gets starved.
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To fix this we reduce the timer resolution.
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Notes:
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This is an app specific shim.
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History:
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10/31/2000 linstev Created
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(UrbanChaos)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(SetTimer)
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APIHOOK_ENUM_END
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/*++
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Reduce the timer resolution to a managable level.
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--*/
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UINT_PTR
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APIHOOK(SetTimer)(
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HWND hWnd,
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UINT nIDEvent,
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UINT uElapse,
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TIMERPROC lpTimerFunc
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)
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{
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// Reduce timer resolution
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if (uElapse < 100)
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{
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uElapse = 500;
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}
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return ORIGINAL_API(SetTimer)(hWnd, nIDEvent, uElapse, lpTimerFunc);
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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(USER32.DLL, SetTimer)
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HOOK_END
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IMPLEMENT_SHIM_END
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