C++黑客技术：获取窗口标题

大家学C++的初衷是啥？
不就是想装B吗？
接下来步入正题：咳咳咳

先来认识一个函数：GetWindowTextA()
它在MSDN的定义：int WINAPI GetWindowTextA( _In_ HWND hWnd, _Out_writes_(nMaxCount) LPSTR lpString, _In_ int nMaxCount);

来说一下它的参数：

hWnd:窗口句柄
lpString:窗口标题
nMaxCount:指定缓冲区大小

用GetForegroundWindow（）函数声明窗口句柄

HWND hWnd = GetForegroundWindow();

接下来就是获取进程ID

DWORD dwProcess;
LRESULT result = 0;
DWORD dwPID = GetWindowThreadProcessId(hWnd, &dwProcess);

用OpenProcess（）函数打开进程

HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, dwProcess);

下面就是源代码了，喜欢的来一波关注

#include <iostream>
#include <Windows.h>

using namespace std;

int main()
{
    
    
    while (1)
    {
    
    
		HWND hWnd = GetForegroundWindow();
		DWORD dwProcess;
		LRESULT result = 0;
		DWORD dwPID = GetWindowThreadProcessId(hWnd, &dwProcess);

		HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, dwProcess);

		WCHAR wszProcessPath[MAX_PATH] = {
    
     0 };
		DWORD dwSize = MAX_PATH;
		QueryFullProcessImageNameW(hProcess, 0, wszProcessPath, &dwSize);
		CHAR wszTitle[MAX_PATH] = {
    
     0 };
		result = GetWindowTextA(hWnd, wszTitle, MAX_PATH);
		cout << "窗口标题:" << wszTitle << endl;
		Sleep(500);
    }
    SetConsoleTitle(L"QQ盗号");
    system("pause");
    return 0;
}

好了，下一篇会讲键盘记录器HOOK技术