C++ selectin file location using Win32 API

Selecting File Location Using Win32 API in C++

#include <windows.h>

int main() {
    OPENFILENAME ofn;
    TCHAR szFile[260];

    ZeroMemory(&ofn, sizeof(ofn));
    ofn.lStructSize = sizeof(ofn);
    ofn.hwndOwner = NULL;
    ofn.lpstrFile = szFile;
    ofn.lpstrFile[0] = '\0';
    ofn.nMaxFile = sizeof(szFile);
    ofn.lpstrFilter = TEXT("All\0.\0Text\0*.TXT\0");
    ofn.nFilterIndex = 1;
    ofn.lpstrFileTitle = NULL;
    ofn.nMaxFileTitle = 0;
    ofn.lpstrInitialDir = NULL;
    ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;

    if (GetOpenFileName(&ofn) == TRUE) {
        // Use the selected file location
    }

    return 0;
}

Include Necessary Header: Include the Windows.h header file to access the Win32 API functions and data types.
Initialize OPENFILENAME Structure: Declare an OPENFILENAME structure and initialize it. This structure contains information used to initialize the Open or Save As dialog box.
Set Structure Size: Set the lStructSize member of the OPENFILENAME structure to the size of the structure.
Set Owner Window: Set the hwndOwner member of the OPENFILENAME structure to the handle of the window that owns the dialog box.
Set File Buffer: Set the lpstrFile member of the OPENFILENAME structure to a buffer for the file name.
Set File Buffer Size: Set the nMaxFile member of the OPENFILENAME structure to the size of the file buffer.
Set File Filters: Set the lpstrFilter member of the OPENFILENAME structure to specify the file filters for the dialog box.
Set Initial Directory: Set the lpstrInitialDir member of the OPENFILENAME structure to specify the initial directory for the dialog box.
Set Flags: Set the Flags member of the OPENFILENAME structure to specify the behavior of the dialog box.
Display the Dialog Box: Call the GetOpenFileName function and pass the address of the OPENFILENAME structure. If the user selects a file, the function returns TRUE.
Process the Selected File: If GetOpenFileName returns TRUE, use the selected file location as needed.
Return: Return 0 to indicate successful execution of the program.

This code sets up the necessary structures and parameters to allow the user to select a file location using the Win32 API in C++.