C++Builder How To Use GetTempPath Method In C++ Builder?

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How To Use GetTempPath Method In C++ Builder?
By Yilmaz Yoru September 9, 2021

How can I get a GetTempPath from the operating system? How we can use GetTempPath Method in C++? How can I easily find the location of the Temp Directory? Let’s answer these questions.

C++ Builder has a lot of specific methods in its Для просмотра ссылки Войди или Зарегистрируйся library that is included in vcl and fmx libraries. Some of these are grouped as Для просмотра ссылки Войди или Зарегистрируйся which allow the user to edit, extract, get and set drive name, directory name, file name, file extensions among other things. These methods are combined in Для просмотра ссылки Войди или Зарегистрируйся, Для просмотра ссылки Войди или Зарегистрируйся, Для просмотра ссылки Войди или Зарегистрируйсяlibraries. These methods are easy to use and make it simple to get or set file path strings in the operating system. These can be used with other component properties like FileName property of OpenDialog, SaveDialog components. We can also check drives, files or directories to see if they are exist or not in that given path. We can also get a temp directory path from the operating system to use in our programs as a safe place to store transient or volatile working information which we want to remove when we are finished with it.

Let’s see how we can use GetTempPath Method in C++ Builder.

What is the GetTempPath method?​

The Для просмотра ссылки Войди или Зарегистрируйся method (System:IOUtils:TPath:GetTempPath) is a Для просмотра ссылки Войди или Зарегистрируйся that returns the path to a directory to store temporary files. This directory is a system-managed location; files saved here may be deleted between application sessions or system restarts. You cannot – and should not – count on it being safe to store anything between launches of your program.

If the system running your application does not support the requested folder, or if the requested folder does not exist in the system, this function returns an empty string instead. GetTempPath points to the following locations on the various platforms:

• On Windows, OS X, and Linux it points to a system-wide directory.
• On iOS and Android, it points to a user-specific, application-specific directory.

Platform	Sample path
Windows XP	C:\Documents and Settings\<User name>\Local Settings\Temp
Windows Vista or later	C:\Users\<User name>\AppData\Local\Temp
OS X	/var/folders/<random folder name>
iOS Device	/private/var/mobile/Applications/<application ID>/tmp
iOS Simulator	/Users/<username>/Library/Application Support/iPhone Simulator/<SDK version>/Applications/<application ID>/tmp
Android	/storage/emulated/0/Android/data/<application ID>/files/tmp
Linux	/tmp

What is the Syntax of the GetTempPath method in Modern C++?​

Here is the Syntax of GetTempPath() Method,

UnicodeString __fastcall GetTempPath();

Is there a simple example of using the GetTempPath Method in Modern C++?​

GetTempPath() Method returns a UnicodeString, We can get Temp Path of the system from a given path string as below,

path = TPath::GetTempPath();
Memo1->Lines->Add( "GetTempPath: " + path); // ShowMessage(path);

What about a full Example of how to use the GetTempPath Method in Modern C++?​

Here is the full C++ Builder VCL example with the Memo (TMemo) component below,

#include <vcl.h>
#include <IOUtils.hpp>
 
#pragma hdrstop
 
#include "Get_Methods_Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner) : TForm(Owner)
{
 String path = TPath::GetTempPath();
 ShowMessage(path);
}

In addition, we can get Home Folder Path by using Для просмотра ссылки Войди или Зарегистрируйся Method. We can also get all Environment Variables by using the Для просмотра ссылки Войди или Зарегистрируйся Method. These methods will be explained in another posts.