自学教程：C++ FormatDateTime函数代码示例

void __fastcall TfrmSearch::menuAddParameterClick(TObject *Sender){/*  frmEditSearchParam->cbxField->ItemIndex = -1;  frmEditSearchParam->txtContext->Text = "";  frmEditSearchParam->cbxOperator->ItemIndex = 0;  frmEditSearchParam->cbxValues->Text = "";  frmEditSearchParam->cbxAndOr->ItemIndex = 0;  frmEditSearchParam->cbxFieldChange(NULL);*/  if(frmEditSearchParam->ShowModal() == mrOk)  {    TListItem * Item = lvParams->Items->Add();    Item->ImageIndex = 48;    TBillField * Field = (TBillField * )frmEditSearchParam->cbxField->Items->Objects[frmEditSearchParam->cbxField->ItemIndex];    Item->Data = (void *)Field;    Item->SubItems->Add(Field->Label);     Item->SubItems->Add(frmEditSearchParam->cbxOperator->Text);     //Item->SubItems->Add(frmEditSearchParam->cbxAndOr->Text);    if(frmEditSearchParam->txtContext->Visible)      Item->SubItems->Add(frmEditSearchParam->txtContext->Text);    else if(frmEditSearchParam->cbxValues->Visible)      Item->SubItems->Add(frmEditSearchParam->cbxValues->Text);    else      Item->SubItems->Add(        FormatDateTime("yyyy-mm-dd",frmEditSearchParam->dtDate->DateTime) + " " +        FormatDateTime("hh:nn:ss",frmEditSearchParam->dtTime->DateTime));    if(frmEditSearchParam->cbxMatch->Checked)      Item->SubItems->Add("√");    else      Item->SubItems->Add("");       } }

HRESULT WINAPI CRecycleBin::GetDetailsOf(PCUITEMID_CHILD pidl, UINT iColumn, LPSHELLDETAILS pDetails){    PIDLRecycleStruct * pFileDetails;    WCHAR buffer[MAX_PATH];    WCHAR szTypeName[100];    LPWSTR pszBackslash;    UINT Length;    TRACE("(%p, %p, %d, %p)/n", this, pidl, iColumn, pDetails);    if (iColumn >= COLUMNS_COUNT)        return E_FAIL;    pDetails->fmt = RecycleBinColumns[iColumn].fmt;    pDetails->cxChar = RecycleBinColumns[iColumn].cxChars;    if (pidl == NULL)        return SHSetStrRet(&pDetails->str, RecycleBinColumns[iColumn].column_name_id);    if (iColumn == COLUMN_NAME)        return GetDisplayNameOf(pidl, SHGDN_NORMAL, &pDetails->str);    pFileDetails = _ILGetRecycleStruct(pidl);    switch (iColumn)    {        case COLUMN_DATEDEL:            FormatDateTime(buffer, MAX_PATH, &pFileDetails->DeletionTime);            break;        case COLUMN_DELFROM:            pszBackslash = wcsrchr(pFileDetails->szName, L'//');            Length = (pszBackslash - pFileDetails->szName);            memcpy((LPVOID)buffer, pFileDetails->szName, Length * sizeof(WCHAR));            buffer[Length] = L'/0';            break;        case COLUMN_SIZE:            StrFormatKBSizeW(pFileDetails->FileSize.QuadPart, buffer, MAX_PATH);            break;        case COLUMN_MTIME:            FormatDateTime(buffer, MAX_PATH, &pFileDetails->LastModification);            break;        case COLUMN_TYPE:            // FIXME: We should in fact use a UNICODE version of _ILGetFileType            szTypeName[0] = L'/0';            wcscpy(buffer, PathFindExtensionW(pFileDetails->szName));            if (!( HCR_MapTypeToValueW(buffer, buffer, _countof(buffer), TRUE) &&                    HCR_MapTypeToValueW(buffer, szTypeName, _countof(szTypeName), FALSE )))            {                /* load localized file string */                szTypeName[0] = '/0';                if(LoadStringW(shell32_hInstance, IDS_ANY_FILE, szTypeName, _countof(szTypeName)))                {                    szTypeName[63] = '/0';                    StringCchPrintfW(buffer, _countof(buffer), szTypeName, PathFindExtensionW(pFileDetails->szName));                }            }            return SHSetStrRet(&pDetails->str, szTypeName);        default:            return E_FAIL;    }    return SHSetStrRet(&pDetails->str, buffer);}

void WriteToLog(String S) {	HANDLE LogFile;	String LogPath;	String LogFileName;	DWORD dwSize;	AnsiString SS;	TDateTime DateTime;	LPDWORD NumberOfBytesWritten = new DWORD;	try { // except		DateTime = Now();		LogPath = ExtractFilePath(Application->ExeName) + LoadStr(IDS_LOG_PATH);		if (!DirectoryExists(LogPath))			CreateDir(LogPath);		LogFileName = IncludeTrailingPathDelimiter(LogPath) +			ChangeFileExt(ExtractFileName(Application->ExeName),			LoadStr(IDS_LOG_EXT));		LogFile = CreateFile(LogFileName.w_str(), GENERIC_READ, FILE_SHARE_READ,			NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);		dwSize = 0;		if (LogFile != INVALID_HANDLE_VALUE) {			dwSize = GetFileSize(LogFile, NULL);			CloseHandle(LogFile);		}		if (dwSize > MaxLogSize) {			String NewFileName = IncludeTrailingPathDelimiter(LogPath) +				OnlyFileName(Application->ExeName) + SPACE + FormatDateTime				(LoadStr(IDS_DATETIME_FORMAT_FILENAME), DateTime) +				LoadStr(IDS_LOG_EXT);			MoveFile(LogFileName.w_str(), NewFileName.w_str());		}		LogFile = CreateFile(LogFileName.w_str(), GENERIC_WRITE,			FILE_SHARE_READ, NULL, OPEN_ALWAYS,			FILE_ATTRIBUTE_NORMAL | FILE_ATTRIBUTE_COMPRESSED, 0);		if (LogFile != INVALID_HANDLE_VALUE) {			SS = AnsiString(FormatDateTime(LoadStr(IDS_DATETIME_FORMAT_LOG),				DateTime) + "; " + AnsiReplaceStr(S, sLineBreak, SPACE) +				sLineBreak);			if (SetFilePointer(LogFile, 0, NULL,				FILE_END) != INVALID_SET_FILE_POINTER)				WriteFile(LogFile, SS.c_str(), SS.Length(),				NumberOfBytesWritten, NULL);			CloseHandle(LogFile);		}	}	catch (...) {	}}

void __fastcall TFrmAlarmDetailList::ChartAlarmClickSeries(TCustomChart *Sender, TChartSeries *Series,		  int ValueIndex, TMouseButton Button, TShiftState Shift, int X,		  int Y){	String strStartDateTime = FormatDateTime("yyyy-mm-dd 
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