Question

I am trying to WriteProcessMemory using Qt with QtCreator. When i press the button it doesn’t write. Here is the code i am using if anyone could help.

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <windows.h>

HANDLE hProcess;
int MYBASE;

void Attach() {
    DWORD pid;
    HWND hWindow = FindWindow(NULL, L"Generic Property Editor Thingy");
    GetWindowThreadProcessId(hWindow, &pid);
    hProcess = OpenProcess(PROCESS_ALL_ACCESS, 0, pid);
}

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::on_pushButton_clicked()
{
    Attach();
    WriteProcessMemory(hProcess, (void*)0x4E709C, (void*)(PBYTE)"\xEB", 1, NULL);

}

Answer 1

In case you haven’t solve this error:

mainwindow.cpp(103) : error C3861: 'Attach': identifier not found

function names are cases sensitive in C/C++ etc … So rename your function to “Attach(…)”