C++Builder How To Delete A File On Windows In C++ Builder

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How To Delete A File On Windows In C++ Builder
By Yilmaz Yoru October 14, 2021

How can I delete a file in C++ Builder? How can I use DeleteFile method in C++ Builder? Let’s answer these questions.

C++ has a lot of great libraries to operate on every case, on every item. We can create or delete directories by using System Commands that we explained before in this Для просмотра ссылки Войди или Зарегистрируйся or we can use C++ standard library methods. In C++ Builder, we can use both of them and we can also use Для просмотра ссылки Войди или Зарегистрируйся to create or remove directories or to get information about disks, directories and files. These methods are easy to remember, very friendly, and smart.

How can I delete a file by using the DeleteFile method in C++?​

Для просмотра ссылки Войди или ЗарегистрируйсяMethod (System::SysUtils: DeleteFile Method) is a SysUtils Method listed in Для просмотра ссылки Войди или Зарегистрируйся that deletes a file from disk. DeleteFile deletes the file named by FileName from the disk. If the file cannot be deleted or does not exist, the function returns False.

Note that DeleteFile can delete a Для просмотра ссылки Войди или Зарегистрируйся from a file or a directory and is the preferred method for deleting symlinks.

Here is the Syntax for the DeleteFile() Method in C++ Builder:

bool __fastcall DeleteFile(const System::UnicodeString FileName);

We can call IsEmpty to check whether a given directory is empty. An empty directory is considered to have no files or other directories in it. IsEmpty returns true if the directory is empty; false otherwise. The following table lists the parameters expected by this method.

Name	Meaning
Path	Path of the directory being checked.

Note: If the Path parameter is an empty string, IsEmpty returns false.

Here is a Simple Example to DeleteFile() Method in C++ Builder,

bool deleted = DeleteFile( L"D:\\MyFolder\\MyImage.jpg" );

is there a full Example of using the DeleteFile method in C++ Builder?​

Here is Full C++ Builder VCL example that deletes a file,

#include <vcl.h>
 
#pragma hdrstop
 
#include "Create_Directory_Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner) : TForm(Owner)
{
 if( FileExists(L"D:\\MyFolder\\MyImage.jpg"))
 {
 bool deleted = DeleteFile( L"D:\\MyFolder\\MyImage.jpg" );
 if (deleted)
 {
 ShowMessage("File deleted successfuly");
 }
 }
}

Please be careful when you use this method, always ask to user with full name of file if he is sure to delete it.