C++Builder How to Use GetHomePath Method in C++ Builder

[FireWind]

How to Use GetHomePath Method in C++ Builder
By Yilmaz Yoru September 29, 2021

How can I get Home Path of the System. How we can use GetHomePath Method in C++? How can I easily find the location of Roaming Directory? Let’s answer these questions.

C++ Builder has a lot of specific methods in its Для просмотра ссылки Войди или Зарегистрируйся library which is included in the vcl and fmx libraries. Some of these are grouped in Для просмотра ссылки Войди или Зарегистрируйся that allows user to edit, extract, get and set drive name, directory name, file name and file extensions. These methods are combined in Для просмотра ссылки Войди или Зарегистрируйся, Для просмотра ссылки Войди или Зарегистрируйся, Для просмотра ссылки Войди или Зарегистрируйсяlibraries. These all methods are easy to use and easy to get or set file path strings in that operating system. These can be used with other component properties like FileName property of OpenDialog, SaveDialog components. We can also check drive, files or directories if they are exist or not in that given path. And we can get home directory path of the operating system.

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

What is the GetHomePath Method?​

Для просмотра ссылки Войди или Зарегистрируйся Method (System:IOUtils:TPath:GetHomePath) is a Для просмотра ссылки Войди или Зарегистрируйся that returns either the home path of the user or the application’s writable scratch directory or storage.

We can call GetHomePath() Method to obtain the user’s home path on the Для просмотра ссылки Войди или Зарегистрируйся. 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.

We should use GetHomePath to store settings per user. For example:

TFile.WriteAllText(TPath.GetHomePath() + TPath.DirectorySeparatorChar + 'sample.txt', 'This is my sample text.');

GetHomePath Method points to the following locations on the various platforms:

• On Windows, it points to the user’s application data folder.
• On Linux and OS X, it points to the user’s home folder, as defined by the $(HOME) environment variable.
• On iOS and Android, it points to the device-specific location of the sandbox for the application; the iOS home location is individually defined for each application instance and for each iOS device.

Platform	Sample path	Path ID
Windows XP	C:\Documents and Settings\<username>\Application Data	Для просмотра ссылки Войди или Зарегистрируйся
Windows Vista or later	C:\Users\<username>\AppData\Roaming	Для просмотра ссылки Войди или Зарегистрируйся
OS X	/Users/<username>	Для просмотра ссылки Войди или Зарегистрируйся
iOS Device	/private/var/mobile/Containers/Data/Application/<application ID>
iOS Simulator	/Users/<username>/Library/Developer/CoreSimulator/Devices/<Device ID>/data/Containers/Data/Application/<application ID>
Android	/data/data/<application ID>/files	Для просмотра ссылки Войди или Зарегистрируйся
Linux	/home/<username>

What is the Syntax of the GetHomePath method in modern C++?​

Here is the Syntax of GetHomePath() Method,

UnicodeString __fastcall GetHomePath();

Is there a simple example of using the GetHomePath method in modern C++ ?​

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

String path = TPath::GetHomePath();
ShowMessage(path);

Is there a full example of how to use the GetHomePath 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::GetHomePath();
 ShowMessage(path);
}

Note In addition, we can get Temporary 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 other posts.