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147 lines
3.9 KiB
147 lines
3.9 KiB
/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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FakeThemeMetrics.cpp
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Abstract:
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This Shim will allow the Skemers group to shim applications that do not behave
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well with "Themed" system metrics
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History:
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11/30/2000 a-brienw Converted to shim frame work version 2.
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--*/
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#include "precomp.h"
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#ifndef ARRAYSIZE
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#define ARRAYSIZE(x) sizeof(x)/sizeof((x)[0])
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#endif
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IMPLEMENT_SHIM_BEGIN(FakeThemeMetrics)
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#include "ShimHookMacro.h"
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// Add APIs that you wish to hook to this enumeration. The first one
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// must have "= USERAPIHOOKSTART", and the last one must be
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// APIHOOK_Count.
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(GetSysColor)
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APIHOOK_ENUM_END
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#define F_TYPE_RGB 0
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#define F_TYPE_MAP 1
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#define F_TYPE_PERCENT 2
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#define F_TYPE_MAX 3
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#define F_TYPE_NOTEQUAL 4
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typedef struct
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{
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int nIndex;
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DWORD fType;
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COLORREF rgb;
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int nMap; // If mapping we need to use the post processed color. Call HookedGetSysColor. See note
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int iPercent;
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} GETSYSCOLOR_MAP;
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const static GETSYSCOLOR_MAP s_ColorMap[] =
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{
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{COLOR_MENU, F_TYPE_MAP, RGB(212, 208, 200), COLOR_BTNFACE, 10},
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{COLOR_BTNFACE, F_TYPE_MAX, RGB(227, 227, 227), 0, 0},
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{COLOR_3DDKSHADOW, F_TYPE_NOTEQUAL, RGB(0,0,0), COLOR_BTNFACE, 20}
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};
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COLORREF AdjustPercent(COLORREF crOld, int iPercent)
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{
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return RGB(GetRValue(crOld) - (GetRValue(crOld) * iPercent) / 100,
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GetGValue(crOld) - (GetGValue(crOld) * iPercent) / 100,
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GetBValue(crOld) - (GetBValue(crOld) * iPercent) / 100);
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}
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// NOTE: If you are mapping a color (i.e. a direct map), then you need to call HookedGetSysColor. For example
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// MSDEV calls GetSysColor(COLOR_BTNFACE). It then calls GetSysColor(COLOR_MENU) and compares the two.
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// If they are different then it pukes. However we hook both COLOR_MENU and COLOR_BTNFACE. So we need to get the mapped color.
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DWORD HookedGetSysColor(int nIndex)
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{
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for (int i = 0; i < ARRAYSIZE(s_ColorMap); i++)
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{
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if (nIndex == s_ColorMap[i].nIndex)
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{
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switch (s_ColorMap[i].fType)
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{
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case F_TYPE_RGB:
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return (DWORD)s_ColorMap[i].rgb;
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break;
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case F_TYPE_MAP:
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return HookedGetSysColor(s_ColorMap[i].nMap);
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break;
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case F_TYPE_PERCENT:
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{
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COLORREF crOld = (COLORREF)ORIGINAL_API(GetSysColor)(nIndex);
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return (DWORD)AdjustPercent(crOld, s_ColorMap[i].iPercent);
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}
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case F_TYPE_MAX:
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{
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COLORREF crOld = (COLORREF)ORIGINAL_API(GetSysColor)(nIndex);
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BYTE r = GetRValue(crOld);
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BYTE g = GetGValue(crOld);
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BYTE b = GetBValue(crOld);
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if (r > GetRValue(s_ColorMap[i].rgb))
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r = GetRValue(s_ColorMap[i].rgb);
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if (g > GetGValue(s_ColorMap[i].rgb))
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g = GetGValue(s_ColorMap[i].rgb);
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if (b > GetBValue(s_ColorMap[i].rgb))
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b = GetBValue(s_ColorMap[i].rgb);
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return RGB(r,g,b);
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}
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case F_TYPE_NOTEQUAL:
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{
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COLORREF crOld = (COLORREF)ORIGINAL_API(GetSysColor)(nIndex);
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COLORREF crNotEqual = (COLORREF)HookedGetSysColor(s_ColorMap[i].nMap);
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if (crOld == crNotEqual)
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{
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crOld = AdjustPercent(crOld, s_ColorMap[i].iPercent);
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}
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return crOld;
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}
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}
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break;
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}
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}
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return ORIGINAL_API(GetSysColor)( nIndex );
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}
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DWORD
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APIHOOK(GetSysColor)(int nIndex)
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{
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return HookedGetSysColor(nIndex);
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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, GetSysColor)
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HOOK_END
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IMPLEMENT_SHIM_END
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