procedure TForm1.btn1Click(Sender: TObject);begin if checkAppExists('scktsrvr.exe') then begin ShowMessage('scktsrvr.exe在运行！'); end else begin ShowMessage('scktsrvr.exe没有运行！'); end; end;5、效果如下：...
如果函数成功,返回一个打开的指定文件的句柄.如果指定文件在函数调用前已经存在并且dwCreation参数是CREATE_ALWAYS或者OPEN_ALWAYS,调用GetLastError就会返回ERROR_ALREADY_EXISTS(表示函数成功). 如果函数文件在调用前不存在则会返回0. 如果函数失败,返会值会是INVALID_HANDLE_VALUE. 更多的错误信息可以调用GetLastError来获得...
** AddSampleIdentifierPreparationData( const SampleImage: IHUntypedObjectX; SampleIdentifier: OleVariant; ObjectIdx: OleVariant; GenParamName: OleVariant; GenParamValue: OleVariant; out ObjectSampleIdx: OleVariant); 说明: 增加预设标定数据 ** AddSampleIdentifierTrainingData( const SampleImage: IHUntypedOb...
case NERR_DestExists :MessageBox(hwnd,AnsiString(AnsiString("错误 ")+AnsiString(IntToStr(err))+AnsiString(": 目标打印机已存在")).c_str(),lpCaption,MB_APPLMODAL|MB_OK|MB_ICONWARNING); break;//(NERR_BASE+53) /* The printer destination already exists. */ case NERR_QExists :MessageBox(hwnd...
//connect to a Azure blobstorage QuickAzure := TQuickAzure.Create(AzureAccountName,AzureAccountKey); //download a blob file to a stream done := QuickAzure.GetBlob('MyContainer','MyFile.jpg',ResponseInfo,MyStream); //check if exists a folder found := ExistFolder('MyContainer','/Public/...
The Result variable is automatically rendered and, if it is an object, its memory is freed. type [MVCNameCase(ncCamelCase)] TPersonRec = record FirstName, LastName: String; Age: Integer; class function Create: TPersonRec; static; end; [MVCNameCase(ncCamelCase)] TPerson = class private...
if (attr and faHidden)=faHidden then ... //隐藏 ◇[DELPHI]执行程序外文件 WINEXEC//调用可执行文件 winexec('command.com /c copy *.* c:/',SW_Normal); winexec('start abc.txt'); ShellExecute或ShellExecuteEx//启动文件关联程序 function executefile(const filename,params,defaultDir:string;sho...
if curIndex> size then DoLoop:=false else DoLoop:=true; end; result:=rArray; freeandnil(MyFile); end; 执行代码: procedure TMainForm.btn2Click(Sender: TObject); var datasIndex:TInt64Array;//数据文件索引 begin t1:=GetTickCount; datasIndex:=ScanEnterFile('R:\201201_dataFile.txt'); ...
Once a server exists, subsequent invocations of the program become clients. If multiple processes start at once, there is a race condition to see who becomes the server, so the architecture must have a clean and simple way to decide who gets to be server. To do this, the program uses a...
这不是拖动，当项目的列和行都在改变时，改变发生在两个步骤中。使用您的代码，首先是列，然后是行。