rainmeter-studio/Library/Litestep.cpp

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/*
Copyright (C) 2002 Kimmo Pekkola + few lsapi developers
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "StdAfx.h"
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#include "Litestep.h"
#include "Error.h"
#include "Rainmeter.h"
#include "System.h"
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extern CRainmeter* Rainmeter;
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typedef BOOL (*FPADDBANGCOMMAND)(LPCSTR command, BangCommand f);
FPADDBANGCOMMAND fpAddBangCommand = NULL;
typedef HRGN (*FPBITMAPTOREGION)(HBITMAP hBmp, COLORREF cTransparentColor, COLORREF cTolerance, int xoffset, int yoffset);
FPBITMAPTOREGION fpBitmapToRegion = NULL;
typedef HWND (*FPGETLITESTEPWND)(void);
FPGETLITESTEPWND fpGetLitestepWnd = NULL;
typedef BOOL (*FPGETRCSTRING)(LPCSTR lpKeyName, LPSTR value, LPCSTR defStr, int maxLen);
FPGETRCSTRING fpGetRCString = NULL;
//typedef int (*FPGETRCINT)(LPCSTR lpKeyName, int nDefault);
//FPGETRCINT fpGetRCInt = NULL;
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typedef HINSTANCE (*FPLSEXECUTE)(HWND Owner, LPCSTR szCommand, int nShowCmd);
FPLSEXECUTE fpLSExecute = NULL;
typedef BOOL (*FPREMOVEBANGCOMMAND)(LPCSTR command);
FPREMOVEBANGCOMMAND fpRemoveBangCommand = NULL;
//typedef void (*FPTRANSPARENTBLTLS)(HDC dc, int nXDest, int nYDest, int nWidth, int nHeight, HDC tempDC, int nXSrc, int nYSrc, COLORREF colorTransparent);
//FPTRANSPARENTBLTLS fpTransparentBltLS = NULL;
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typedef void (*FPVAREXPANSION)(LPSTR buffer, LPCSTR value);
FPVAREXPANSION fpVarExpansion = NULL;
typedef BOOL (WINAPI *FPLSLOG)(int nLevel, LPCSTR pszModule, LPCSTR pszMessage);
FPLSLOG fpLSLog = NULL;
static int logFound = 0;
void ResetLoggingFlag()
{
logFound = 0;
}
void InitalizeLitestep()
{
// Use lsapi's methods instead of the stubs
HINSTANCE h = CSystem::RmLoadLibrary(L"lsapi.dll");
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if (h != NULL)
{
fpAddBangCommand = (FPADDBANGCOMMAND)GetProcAddress(h, "AddBangCommand");
fpBitmapToRegion = (FPBITMAPTOREGION)GetProcAddress(h, "BitmapToRegion");
fpGetLitestepWnd = (FPGETLITESTEPWND)GetProcAddress(h, "GetLitestepWnd");
fpGetRCString = (FPGETRCSTRING)GetProcAddress(h, "GetRCString");
//fpGetRCInt = (FPGETRCINT)GetProcAddress(h, "GetRCInt");
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fpLSExecute = (FPLSEXECUTE)GetProcAddress(h, "LSExecute");
fpRemoveBangCommand = (FPREMOVEBANGCOMMAND)GetProcAddress(h, "RemoveBangCommand");
//fpTransparentBltLS = (FPTRANSPARENTBLTLS)GetProcAddress(h, "TransparentBltLS");
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fpVarExpansion = (FPVAREXPANSION)GetProcAddress(h, "VarExpansion");
fpLSLog = (FPLSLOG)GetProcAddress(h, "_LSLog@12");
}
}
BOOL AddBangCommand(LPCSTR command, BangCommand f)
{
// Use the lsapi.dll version of the method if possible
if (fpAddBangCommand) return fpAddBangCommand(command, f);
// The stub implementation
return true;
}
HWND GetLitestepWnd(void)
{
// Use the lsapi.dll version of the method if possible
if (fpGetLitestepWnd) return fpGetLitestepWnd();
// The stub implementation
return NULL;
}
BOOL RemoveBangCommand(LPCSTR command)
{
// Use the lsapi.dll version of the method if possible
if (fpRemoveBangCommand) return fpRemoveBangCommand(command);
// The stub implementation
return true;
}
BOOL GetRCString(LPCSTR lpKeyName, LPSTR value, LPCSTR defStr, int maxLen)
{
// Use the lsapi.dll version of the method if possible
if (fpGetRCString) return fpGetRCString(lpKeyName, value, defStr, maxLen);
// The stub implementation
return false;
}
//int GetRCInt(LPCSTR lpKeyName, int nDefault)
//{
// // Use the lsapi.dll version of the method if possible
// if (fpGetRCInt) return fpGetRCInt(lpKeyName, nDefault);
//
// // The stub implementation
// return nDefault;
//}
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void VarExpansion(LPSTR buffer, LPCSTR value)
{
// Use the lsapi.dll version of the method if possible
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if (fpVarExpansion)
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{
fpVarExpansion(buffer, value);
}
else
{
// The stub implementation
if (buffer != value)
{
strcpy(buffer, value);
}
}
}
HRGN BitmapToRegion(HBITMAP hbm, COLORREF clrTransp, COLORREF clrTolerance, int xoffset, int yoffset)
{
// Use the lsapi.dll version of the method if possible
if (fpBitmapToRegion) return fpBitmapToRegion(hbm, clrTransp, clrTolerance, xoffset, yoffset);
// start with a completely transparent rgn
// this is more correct as no bmp, should render a transparent background
HRGN hRgn = CreateRectRgn(0, 0, 0, 0);
if (hbm)
{
// create a dc for the 32 bit dib
HDC hdcMem = CreateCompatibleDC(NULL);
if (hdcMem)
{
VOID *pbits32;
HBITMAP hbm32;
BITMAP bm;
// get the size
GetObject(hbm, sizeof(BITMAP), &bm);
BITMAPINFOHEADER bmpInfo32;
bmpInfo32.biSize = sizeof(BITMAPINFOHEADER);
bmpInfo32.biWidth = bm.bmWidth;
bmpInfo32.biHeight = bm.bmHeight;
bmpInfo32.biPlanes = 1;
bmpInfo32.biBitCount = 32;
bmpInfo32.biCompression = BI_RGB;
bmpInfo32.biSizeImage = 0;
bmpInfo32.biXPelsPerMeter = 0;
bmpInfo32.biYPelsPerMeter = 0;
bmpInfo32.biClrUsed = 0;
bmpInfo32.biClrImportant = 0;
hbm32 = CreateDIBSection(hdcMem, (BITMAPINFO *) & bmpInfo32, DIB_RGB_COLORS, &pbits32, NULL, 0);
if (hbm32)
{
HBITMAP hbmOld32 = (HBITMAP)SelectObject(hdcMem, hbm32);
// Create a DC just to copy the bitmap into the memory D
HDC hdcTmp = CreateCompatibleDC(hdcMem);
if (hdcTmp)
{
// Get how many bytes per row we have for the bitmap bits (rounded up to 32 bits
int y = 0;
BITMAP bm32;
GetObject(hbm32, sizeof(bm32), &bm32);
while (bm32.bmWidthBytes % 4)
bm32.bmWidthBytes++;
// get the limits for the colors
BYTE clrHiR = ( 0xff - GetRValue( clrTolerance ) > GetRValue( clrTransp ) ) ? GetRValue( clrTransp ) + GetRValue( clrTolerance ) : 0xff;
BYTE clrHiG = ( 0xff - GetGValue( clrTolerance ) > GetGValue( clrTransp ) ) ? GetGValue( clrTransp ) + GetGValue( clrTolerance ) : 0xff;
BYTE clrHiB = ( 0xff - GetBValue( clrTolerance ) > GetBValue( clrTransp ) ) ? GetBValue( clrTransp ) + GetBValue( clrTolerance ) : 0xff;
BYTE clrLoR = ( GetRValue( clrTolerance ) < GetRValue( clrTransp ) ) ? GetRValue( clrTransp ) - GetRValue( clrTolerance ) : 0x00;
BYTE clrLoG = ( GetGValue( clrTolerance ) < GetGValue( clrTransp ) ) ? GetGValue( clrTransp ) - GetGValue( clrTolerance ) : 0x00;
BYTE clrLoB = ( GetBValue( clrTolerance ) < GetBValue( clrTransp ) ) ? GetBValue( clrTransp ) - GetBValue( clrTolerance ) : 0x00;
// Copy the bitmap into the memory D
HBITMAP hbmOld = (HBITMAP)SelectObject(hdcTmp, hbm);
BitBlt(hdcMem, 0, 0, bm.bmWidth, bm.bmHeight, hdcTmp, 0, 0, SRCCOPY);
// Scan each bitmap row from bottom to top (the bitmap is inverted vertically
BYTE *p;
BYTE *p32 = (BYTE *)bm32.bmBits + (bm32.bmHeight - 1) * bm32.bmWidthBytes;
while (y < bm.bmHeight)
{
int x = 0;
while ( x < bm.bmWidth )
{
int x0 = 0;
// loop through all transparent pixels...
while ( x < bm.bmWidth )
{
p = p32 + 4 * x;
// if the pixel is non-transparent
if (*p < clrLoB || *p > clrHiB)
break;
p++;
if (*p < clrLoG || *p > clrHiG)
break;
p++;
if (*p < clrLoR || *p > clrHiR)
break;
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x++;
}
// set first non transparent pixel
x0 = x;
// loop through all non transparent pixels
while ( x < bm.bmWidth )
{
p = p32 + 4 * x;
// if the pixel is transparent, then break
if (*p >= clrLoB && *p <= clrHiB)
{
p++;
if (*p >= clrLoG && *p <= clrHiG)
{
p++;
if (*p >= clrLoR && *p <= clrHiR)
break;
}
}
x++;
}
// if found one or more non-transparent pixels in a row, add them to the rgn...
if (x != x0)
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{
HRGN hTempRgn = CreateRectRgn(x0 + xoffset, y + yoffset, x + xoffset, y + 1 + yoffset);
CombineRgn(hRgn, hRgn, hTempRgn, RGN_OR);
DeleteObject(hTempRgn);
}
x++;
}
y++;
p32 -= bm32.bmWidthBytes;
}
// Clean up
SelectObject(hdcTmp, hbmOld);
DeleteDC(hdcTmp);
}
SelectObject(hdcMem, hbmOld32);
DeleteObject(hbm32);
}
DeleteDC(hdcMem);
}
}
return hRgn;
}
HINSTANCE LSExecuteAsAdmin(HWND Owner, LPCTSTR szCommand, int nShowCmd)
{
BOOL IsInAdminGroup = FALSE;
SID_IDENTIFIER_AUTHORITY NtAuthority = SECURITY_NT_AUTHORITY;
PSID AdministratorsGroup;
// Initialize SID.
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if (!AllocateAndInitializeSid( &NtAuthority,
2,
SECURITY_BUILTIN_DOMAIN_RID,
DOMAIN_ALIAS_RID_ADMINS,
0, 0, 0, 0, 0, 0,
&AdministratorsGroup))
{
// Initializing SID Failed.
IsInAdminGroup = FALSE;
}
else
{
// Check whether the token is present in admin group.
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if (!CheckTokenMembership( NULL,
AdministratorsGroup,
&IsInAdminGroup ))
{
// Error occurred.
IsInAdminGroup = FALSE;
}
// Free SID and return.
FreeSid(AdministratorsGroup);
}
if (IsInAdminGroup)
{
return ExecuteCommand(Owner, szCommand, nShowCmd, L"open");
}
else
{
return ExecuteCommand(Owner, szCommand, nShowCmd, L"runas");
}
}
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HINSTANCE LSExecute(HWND Owner, LPCTSTR szCommand, int nShowCmd)
{
// Use the lsapi.dll version of the method if possible
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if (fpLSExecute)
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{
std::string asc = ConvertToAscii(szCommand);
return fpLSExecute(Owner, asc.c_str(), nShowCmd);
}
return ExecuteCommand(Owner, szCommand, nShowCmd, L"open");
}
HINSTANCE ExecuteCommand(HWND Owner, LPCTSTR szCommand, int nShowCmd, LPCTSTR szVerb)
{
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// The stub implementation (some of this code is taken from lsapi.cpp)
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if (szCommand == NULL || *szCommand == 0) return NULL;
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std::wstring args;
std::wstring command = szCommand;
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size_t notwhite = command.find_first_not_of(L" \t\r\n");
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command.erase(0, notwhite);
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if (command.empty()) return NULL;
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size_t quotePos = command.find(L"\"");
if (quotePos == 0)
{
size_t quotePos2 = command.find(L"\"", quotePos + 1);
if (quotePos2 != std::wstring::npos)
{
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args.assign(command, quotePos2 + 1, command.length() - (quotePos2 + 1));
command.assign(command, quotePos + 1, quotePos2 - quotePos - 1);
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}
else
{
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command.erase(0, 1);
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}
}
else
{
size_t spacePos = command.find(L" ");
if (spacePos != std::wstring::npos)
{
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args.assign(command, spacePos + 1, command.length() - (spacePos + 1));
command.erase(spacePos);
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}
}
DWORD type = GetFileAttributes(command.c_str());
if (type & FILE_ATTRIBUTE_DIRECTORY && type != 0xFFFFFFFF)
{
HINSTANCE instance = ShellExecute(Owner, szVerb, command.c_str(), NULL, NULL, nShowCmd ? nShowCmd : SW_SHOWNORMAL);
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return instance;
}
std::wstring dir = CRainmeter::ExtractPath(command);
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SHELLEXECUTEINFO si = {sizeof(SHELLEXECUTEINFO)};
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si.hwnd = Owner;
si.lpVerb = szVerb;
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si.lpFile = command.c_str();
si.lpParameters = args.c_str();
si.lpDirectory = dir.c_str();
si.nShow = nShowCmd ? nShowCmd : SW_SHOWNORMAL;
si.fMask = SEE_MASK_DOENVSUBST | SEE_MASK_FLAG_NO_UI;
ShellExecuteEx(&si);
return si.hInstApp;
}
//void TransparentBltLS(HDC hdcDst, int nXDest, int nYDest, int nWidth, int nHeight, HDC hdcSrc, int nXSrc, int nYSrc, COLORREF colorTransparent)
//{
// // Use the lsapi.dll version of the method if possible
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// if (fpTransparentBltLS)
// {
// fpTransparentBltLS(hdcDst, nXDest, nYDest, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, colorTransparent);
// }
// else
// {
// HDC hdcMem, hdcMask, hdcDstCpy;
// HBITMAP hbmMask, hbmMem, hbmDstCpy;
// HBITMAP hbmOldMem, hbmOldMask, hbmOldDstCpy;
//
// // create a destination compatble dc containing
// // a copy of the destination dc
// hdcDstCpy = CreateCompatibleDC(hdcDst);
// hbmDstCpy = CreateCompatibleBitmap(hdcDst, nWidth, nHeight);
// hbmOldDstCpy = (HBITMAP)SelectObject(hdcDstCpy, hbmDstCpy);
//
// BitBlt(hdcDstCpy, 0, 0, nWidth, nHeight, hdcDst, nXDest, nYDest, SRCCOPY);
//
// // create a destination compatble dc containing
// // a copy of the source dc
// hdcMem = CreateCompatibleDC(hdcDst);
// hbmMem = CreateCompatibleBitmap(hdcDst, nWidth, nHeight);
// hbmOldMem = (HBITMAP)SelectObject(hdcMem, hbmMem);
//
// BitBlt(hdcMem, 0, 0, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, SRCCOPY);
//
// // the transparent color should be selected as
// // bkcolor into the memory dc
// SetBkColor(hdcMem, colorTransparent);
//
// // Create monochrome bitmap for the mask
// hdcMask = CreateCompatibleDC(hdcDst);
// hbmMask = CreateBitmap(nWidth, nHeight, 1, 1, NULL);
// hbmOldMask = (HBITMAP)SelectObject(hdcMask, hbmMask);
//
// // Create the mask from the memory dc
// BitBlt(hdcMask, 0, 0, nWidth, nHeight, hdcMem, 0, 0, SRCCOPY);
//
// // Set the background in hdcMem to black. Using SRCPAINT with black
// // and any other color results in the other color, thus making
// // black the transparent color
// SetBkColor(hdcMem, RGB(0, 0, 0));
// SetTextColor(hdcMem, RGB(255, 255, 255));
//
// BitBlt(hdcMem, 0, 0, nWidth, nHeight, hdcMask, 0, 0, SRCAND);
//
// // Set the foreground to black. See comment above.
// SetBkColor(hdcDst, RGB(255, 255, 255));
// SetTextColor(hdcDst, RGB(0, 0, 0));
//
// BitBlt(hdcDstCpy, 0, 0, nWidth, nHeight, hdcMask, 0, 0, SRCAND);
//
// // Combine the foreground with the background
// BitBlt(hdcDstCpy, 0, 0, nWidth, nHeight, hdcMem, 0, 0, SRCPAINT);
//
// // now we have created the image we want to blt
// // in the destination copy dc
// BitBlt(hdcDst, nXDest, nYDest, nWidth, nHeight, hdcDstCpy, 0, 0, SRCCOPY);
//
// SelectObject(hdcMask, hbmOldMask);
// DeleteObject(hbmMask);
// DeleteDC(hdcMask);
//
// SelectObject(hdcMem, hbmOldMem);
// DeleteObject(hbmMem);
// DeleteDC(hdcMem);
//
// SelectObject(hdcDstCpy, hbmOldDstCpy);
// DeleteObject(hbmDstCpy);
// DeleteDC(hdcDstCpy);
// }
//}
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std::string ConvertToAscii(LPCTSTR str)
{
std::string szAscii;
if (str && *str)
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{
int strLen = (int)wcslen(str) + 1;
int bufLen = WideCharToMultiByte(CP_ACP, 0, str, strLen, NULL, 0, NULL, NULL);
if (bufLen > 0)
{
char* tmpSz = new char[bufLen];
tmpSz[0] = 0;
WideCharToMultiByte(CP_ACP, 0, str, strLen, tmpSz, bufLen, NULL, NULL);
szAscii = tmpSz;
delete [] tmpSz;
}
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}
return szAscii;
}
std::wstring ConvertToWide(LPCSTR str)
{
std::wstring szWide;
if (str && *str)
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{
int strLen = (int)strlen(str) + 1;
int bufLen = MultiByteToWideChar(CP_ACP, 0, str, strLen, NULL, 0);
if (bufLen > 0)
{
WCHAR* wideSz = new WCHAR[bufLen];
wideSz[0] = 0;
MultiByteToWideChar(CP_ACP, 0, str, strLen, wideSz, bufLen);
szWide = wideSz;
delete [] wideSz;
}
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}
return szWide;
}
std::string ConvertToUTF8(LPCWSTR str)
{
std::string szAscii;
if (str && *str)
{
int strLen = (int)wcslen(str) + 1;
int bufLen = WideCharToMultiByte(CP_UTF8, 0, str, strLen, NULL, 0, NULL, NULL);
if (bufLen > 0)
{
char* tmpSz = new char[bufLen];
tmpSz[0] = 0;
WideCharToMultiByte(CP_UTF8, 0, str, strLen, tmpSz, bufLen, NULL, NULL);
szAscii = tmpSz;
delete [] tmpSz;
}
}
return szAscii;
}
std::wstring ConvertUTF8ToWide(LPCSTR str)
{
std::wstring szWide;
if (str && *str)
{
int strLen = (int)strlen(str) + 1;
int bufLen = MultiByteToWideChar(CP_UTF8, 0, str, strLen, NULL, 0);
if (bufLen > 0)
{
WCHAR* wideSz = new WCHAR[bufLen];
wideSz[0] = 0;
MultiByteToWideChar(CP_UTF8, 0, str, strLen, wideSz, bufLen);
szWide = wideSz;
delete [] wideSz;
}
}
return szWide;
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}
BOOL LSLog(int nLevel, LPCTSTR pszModule, LPCTSTR pszMessage)
{
CRainmeter::LOG_INFO logInfo;
logInfo.message = pszMessage;
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// Add timestamp
static ULONGLONG startTime = CSystem::GetTickCount64();
ULONGLONG time = CSystem::GetTickCount64();
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WCHAR buffer[128];
_snwprintf_s(buffer, _TRUNCATE, L"(%02llu:%02llu:%02llu.%03llu) ", (time - startTime) / (1000 * 60* 60), ((time - startTime) / (1000 * 60)) % 60, ((time - startTime) / 1000) % 60, (time - startTime) % 1000);
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std::wstring message(buffer);
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logInfo.timestamp = message;
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message += pszMessage;
#ifdef _DEBUG
_RPT0(_CRT_WARN, ConvertToAscii(message.c_str()).c_str());
_RPT0(_CRT_WARN, "\n");
#endif
switch(nLevel)
{
case LOG_ERROR:
logInfo.type = L"ERROR";
break;
case LOG_WARNING:
logInfo.type = L"WARNING";
break;
case LOG_NOTICE:
logInfo.type = L"NOTICE";
break;
case LOG_DEBUG:
logInfo.type = L"DEBUG";
break;
}
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if (Rainmeter)
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{
Rainmeter->AddAboutLogInfo(logInfo);
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}
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// Use the lsapi.dll version of the method if possible
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if (fpLSLog)
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{
std::string asc = ConvertToAscii(message.c_str());
std::string mod = ConvertToAscii(pszModule);
return fpLSLog(nLevel, mod.c_str(), asc.c_str());
}
// The stub implementation
if (Rainmeter && Rainmeter->GetLogging())
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{
std::wstring logfile = Rainmeter->GetLogFile();
if (logFound == 0)
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{
// Check if the file exists
if (_waccess(logfile.c_str(), 0) != -1)
{
logFound = 1;
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// Clear the file
FILE* logFile = _wfopen(logfile.c_str(), L"w");
fclose(logFile);
}
else
{
logFound = 2; // not found
}
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}
if (logFound == 1)
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{
if (_waccess(logfile.c_str(), 0) == -1)
{
// Disable logging if the file was deleted manually
Rainmeter->StopLogging();
}
else
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{
FILE* logFile = _wfopen(logfile.c_str(), L"a+, ccs=UTF-8");
if (logFile)
{
fputws(logInfo.type.c_str(), logFile);
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fputws(L": ", logFile);
fputws(message.c_str(), logFile);
fputws(L"\n", logFile);
fclose(logFile);
}
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}
}
}
return TRUE;
}
void RmNullCRTInvalidParameterHandler(const wchar_t* expression, const wchar_t* function, const wchar_t* file, unsigned int line, uintptr_t pReserved)
{
// Do nothing.
}
void Log(int nLevel, const WCHAR* message)
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{
LSLog(nLevel, L"Rainmeter", message);
}
void LogWithArgs(int nLevel, const WCHAR* format, ... )
{
WCHAR* buffer = new WCHAR[4096];
va_list args;
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va_start( args, format );
_invalid_parameter_handler oldHandler = _set_invalid_parameter_handler(RmNullCRTInvalidParameterHandler);
_CrtSetReportMode(_CRT_ASSERT, 0);
errno = 0;
_vsnwprintf_s( buffer, 4096, _TRUNCATE, format, args );
if (errno != 0)
{
nLevel = LOG_ERROR;
_snwprintf_s(buffer, 4096, _TRUNCATE, L"LogWithArgs() internal error: %s", format);
}
_set_invalid_parameter_handler(oldHandler);
LSLog(nLevel, L"Rainmeter", buffer);
va_end(args);
delete [] buffer;
}