wince ini文件操作

DWORD GetPrivateProfileString( LPCTSTR lpAppName, LPCTSTR lpKeyName, LPCTSTR lpDefault, LPTSTR lpReturnedString, DWORD nSize, LPCTSTR lpFileName){FILE *f = NULL;DWORD dwRet = 0;ASSERT(lpReturnedString != NULL);ASSERT(lpFileName != NULL);ZeroMemory(lpReturnedString, nSize);int err = 0;const TCHAR *index = _tcschr(lpFileName, '//'); if (index == NULL){TCHAR buf[MAX_PATH] = _T("//Windows//");_tcscat_s(buf, MAX_PATH, lpFileName);err = _tfopen_s(&f, lpFileName, _T("r+"));}elseerr = _tfopen_s(&f, lpFileName, _T("r+"));if (err != 0)dwRet = 0;char c;DWORD i = 0, j = 0;if (lpAppName == NULL){while (fread(&c, sizeof(char), 1, f)){if ( c == '[') {while (i<nSize && fread(&lpReturnedString[i], sizeof(char), 1, f)){if (lpReturnedString[i++] == ']'){lpReturnedString[i-1] = '/0'; break;}}}}if (i < nSize){lpReturnedString[i] = '/0';dwRet = i;}else{lpReturnedString[nSize-1] = lpReturnedString[nSize-2] = '/0';dwRet = nSize-2;}}else{TCHAR buf[MAX_PATH] = _T("");while (fread(&c, sizeof(char), 1, f)){if ( c == '[') {while (i<MAX_PATH && fread(&buf[i], sizeof(char), 1, f)){if (buf[i++] == ']'){buf[i-1] = '/0'; i = 0;break;}}}if (_tcscmp(buf, lpAppName) == 0)break;}i = 0;bool bKeyStart = 0;if (lpKeyName == NULL){while (fread(&c, sizeof(char), 1, f)){if (c == '['){if (i < nSize){lpReturnedString[i] = '/0';dwRet = i;}else{lpReturnedString[nSize-1] = lpReturnedString[nSize-2] = '/0';dwRet = nSize-2;}break;}if (c == '/n'){bKeyStart = 1;continue;}if (bKeyStart){if (c == '='){bKeyStart = 0;lpReturnedString[i++] = '/0';continue;}lpReturnedString[i++] = c;}}}else{while (fread(&c, sizeof(char), 1, f)){if (c == '/n' && _tcscmp(buf, lpKeyName) != 0){bKeyStart = 1;continue;}if (bKeyStart){if (c == '='){bKeyStart = 0;buf[i++] = '/0';i = 0;continue;}buf[i++] = c;continue;}if (_tcscmp(buf, lpKeyName) == 0){if (c == '/n'){if (j < nSize){lpReturnedString[j] = '/0';dwRet = j;}else{lpReturnedString[nSize-1] = lpReturnedString[nSize-2] = '/0';dwRet = nSize-2;}break;}lpReturnedString[j++] = c;}}if (j < nSize){lpReturnedString[j] = '/0';dwRet = j;}else{lpReturnedString[nSize-1] = lpReturnedString[nSize-2] = '/0';dwRet = nSize-2;}}}fclose(f);return dwRet;}BOOL WritePrivateProfileString( LPCTSTR lpAppName, LPCTSTR lpKeyName, LPCTSTR lpString, LPCTSTR lpFileName){FILE *f = NULL;if (lpAppName == NULL || lpKeyName == NULL || lpString == NULL || lpFileName == NULL)return FALSE;int err = 0;const TCHAR *index = _tcschr(lpFileName, '//'); if (index == NULL){TCHAR buf[MAX_PATH] = _T("//Windows//");_tcscat_s(buf, MAX_PATH, lpFileName);err = _tfopen_s(&f, lpFileName, _T("r+b"));}elseerr = _tfopen_s(&f, lpFileName, _T("r+b"));if (err != 0)return FALSE;char c;int i = 0;TCHAR buf[MAX_PATH] = _T("");while (fread(&c, sizeof(char), 1, f)){if (c == '['){while (i<MAX_PATH && fread(&buf[i], sizeof(char), 1, f)){if (buf[i++] == ']'){buf[i-1] = '/0'; break;}}}if (_tcscmp(buf, lpAppName) == 0)break;}ZeroMemory(buf, MAX_PATH);while (fread(&c, sizeof(char), 1, f)){i = 0;if (c == '/n'){while (i<MAX_PATH && fread(&buf[i], sizeof(char), 1, f)){if (buf[i] != '/n' && buf[i++] == '='){buf[i-1] = '/0'; break;}}}if (_tcscmp(buf, lpKeyName) == 0)break;}i = 0;while (fread(&c, sizeof(char), 1, f)){i++;if (c == '/n')break;}fseek(f, -i, SEEK_CUR);char buffer[MAX_PATH] = "";WideCharToMultiByte(CP_ACP,0,lpString,-1,buffer,MAX_PATH,NULL,NULL);size_t num = fwrite(buffer, sizeof(char), i-2, f);if (num != i-2){fclose(f);return FALSE;}if (strlen(buffer) > i-2){fpos_t pos, pos_cur;fgetpos(f, &pos);fseek(f, 0, SEEK_END);fgetpos(f, &pos_cur);while (pos_cur > pos){fseek(f, -1, SEEK_CUR);fgetpos(f, &pos_cur);fread(&c, 1, 1, f);fseek(f, strlen(buffer)-i+2-1, SEEK_CUR);fwrite(&c, 1, 1, f);fsetpos(f, &pos_cur);}num = fwrite(buffer+i-2, 1, strlen(buffer)-i+2, f);if (num != strlen(buffer)-i+2){fclose(f);return FALSE;}}fclose(f);return TRUE;}