how-to-retrieve-file-information-cpp-cli.md

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How to: Retrieve File Information (C++/CLI) | Microsoft Docs		11/04/2016			cpp-windows		article	C++	files [C++], retrieving information about FileInfo class	8b67f7ad-a048-4437-ac5c-b41809a6018d	9	mikeblome	mblome	ghogen

How to: Retrieve File Information (C++/CLI)

The following code example demonstrates the xref:System.IO.FileInfo class. When you have the name of a file, you can use this class to retrieve information about the file such as the file size, directory, full name, and date and time of creation and of the last modification.

This code retrieves file information for Notepad.exe.

Example

// file_info.cpp  
// compile with: /clr  
using namespace System;  
using namespace System::IO;  
  
int main()  
{  
   array<String^>^ args = Environment::GetCommandLineArgs();  
   if (args->Length < 2)  
   {  
      Console::WriteLine("\nUSAGE : file_info <filename>\n\n");  
      return -1;  
   }  
  
   FileInfo^ fi = gcnew FileInfo( args[1] );  
  
   Console::WriteLine("file size: {0}", fi->Length );  
  
   Console::Write("File creation date:  ");  
   Console::Write(fi->CreationTime.Month.ToString());  
   Console::Write(".{0}", fi->CreationTime.Day.ToString());  
   Console::WriteLine(".{0}", fi->CreationTime.Year.ToString());  
  
   Console::Write("Last access date:  ");  
   Console::Write(fi->LastAccessTime.Month.ToString());  
   Console::Write(".{0}", fi->LastAccessTime.Day.ToString());  
   Console::WriteLine(".{0}", fi->LastAccessTime.Year.ToString());  
  
   return 0;  
}  

See Also

File and Stream I-O
.NET Programming with C++/CLI (Visual C++)