在C ++中打开Windows资源管理器窗口

Question

I recently wrote the following code for a school project; with my objective to make a basic encryption program. Currently to encrypt a file with this program, the file name needs to be known and typed in to the console manually including the file extension. To improve the program's user-friendliness, I wanted to implement a function to open a Windows file explorer window so the user can select the file they want to encrypt. After much searching on the internet, I was not able to find any way to implement this into my code. So my question is, does this functionality exist in the C++ library, and if so how could I implement it into my code.

#include    <iostream>  
#include    <fstream>       
#include    <stdio.h>      
#include    <math.h>
using namespace std;

#define     ENCRYPTION_FORMULA      (int) Byte * 25  
#define     DECRYPTION_FORMULA      (int) Byte / 25 

int Encrypt (char * FILENAME, char * NEW_FILENAME)
{
std::ifstream inFile;   
std::ofstream outFile;                 
char Byte;          
inFile.open(FILENAME, ios::in | ios::binary);       
outFile.open(NEW_FILENAME, ios::out | ios::binary); 

    while(!inFile.eof())
{
    char NewByte;
    Byte = inFile.get();
    if (inFile.fail())
        return 0;
    NewByte = ENCRYPTION_FORMULA;
    outFile.put(NewByte);
}

inFile.close();     
outFile.close();    

return 1; 
}


int Decrypt (char * FILENAME, char * NEW_FILENAME)
{
std::ifstream inFile;
std::ofstream outFile;
char Byte;
inFile.open(FILENAME, ios::in | ios::binary);
outFile.open(NEW_FILENAME, ios::out | ios::binary);

while(!inFile.eof())
{
    char NewByte;
    Byte = inFile.get();
    if (inFile.fail())
        return 0;
    NewByte = DECRYPTION_FORMULA;
    outFile.put(NewByte);
}

inFile.close();
outFile.close();

return 1;
}


    int main()
    {

char EncFile[200];      
char NewEncFile[200];   
char DecFile[200];      
char NewDecFile[200];   
int Choice;         
cout << "NOTE: You must encrypt the file with the same file extension!"<<endl;
cout << "Enter 1 to Encrypt / 2 to Decrypt"<<endl;
cin >> Choice;  

switch(Choice)
{
case 1:
    cout << "Enter the current Filename:    ";
    cin >> EncFile; 
    cout << "Enter the new Filename:    ";
    cin >> NewEncFile;  
    Encrypt(EncFile, NewEncFile);   
    break;

case 2: 
    cout << "Enter the current Filename:    ";
    cin >> DecFile;
    cout << "Enter the new Filename:    ";
    cin >> NewDecFile;
    Decrypt(DecFile, NewDecFile);   
    break;
}


return 0;   //Exit!

}

Answer 1

The 'open file' dialog you're refering to is a part of the Windows API. To add it you'd have to write a bunch of code and it's probably not worth it for the task at hand. If you want to do it anyway, read more about it on the MSDN .