【小沐学C++】C++ 实现鼠标键盘钩子HOOK（2）

5、代码测试

5.1 代码1

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

std::string get_time()
{
	SYSTEMTIME sys;
	GetLocalTime(&sys);
	char time[255] = { 0 };
	sprintf_s(time, "[%4d/%02d/%02d %02d:%02d:%02d]", sys.wYear, sys.wMonth, sys.wDay, sys.wHour, sys.wMinute, sys.wSecond);

	return std::string(time);
}

LRESULT CALLBACK KeyboardProc(int nCode, WPARAM wParam, LPARAM lParam)
{
	/*
	typedef struct tagKBDLLHOOKSTRUCT {
	DWORD     vkCode;		// 按键代号
	DWORD     scanCode;		// 硬件扫描代号，同 vkCode 也可以作为按键的代号。
	DWORD     flags;		// 事件类型，一般按键按下为 0 抬起为 128。
	DWORD     time;			// 消息时间戳
	ULONG_PTR dwExtraInfo;	// 消息附加信息，一般为 0。
	}KBDLLHOOKSTRUCT,*LPKBDLLHOOKSTRUCT,*PKBDLLHOOKSTRUCT;
	*/
	KBDLLHOOKSTRUCT* ks = (KBDLLHOOKSTRUCT*)lParam;		// 包含低级键盘输入事件信息
	char buffer[255];
	DWORD code = ks->vkCode;
	std::string t = get_time();
	char state[20];

	if (wParam == WM_KEYDOWN)
	{
		strcpy_s(state, "按下");
	}
	else if (wParam == WM_KEYUP)
	{
		strcpy_s(state, "抬起");
	}

	sprintf_s(buffer, "[键盘]%s 键代码:%d %s", t.c_str(), code, state);
	std::cout << buffer << std::endl;

	//return 1;	// 拦截消息
	return CallNextHookEx(NULL, nCode, wParam, lParam);
}

LRESULT CALLBACK MouseProc(int nCode, WPARAM wParam, LPARAM lParam)
{
	/*
	typedef struct tagMOUSEHOOKSTRUCT {
		POINT   pt;					// Point数据
		HWND    hwnd;				// 接收鼠标消息的窗体的句柄
		UINT    wHitTestCode;		// 指定点击测试值
		ULONG_PTR dwExtraInfo;		// 指定和该消息相关联的附加信息。
	} MOUSEHOOKSTRUCT, FAR* LPMOUSEHOOKSTRUCT, * PMOUSEHOOKSTRUCT;
	*/

	MOUSEHOOKSTRUCT* ms = (MOUSEHOOKSTRUCT*)lParam;
	POINT pt = ms->pt;
	std::string time = get_time();
	char buffer[1024];
	char state[20] = "未知";

	if (wParam == WM_LBUTTONDOWN)
	{
		strcpy_s(state, "左键按下");
	}
	else if (wParam == WM_LBUTTONUP)
	{
		strcpy_s(state, "左键抬起");
	}
	else if (wParam == WM_RBUTTONDOWN)
	{
		strcpy_s(state, "右键按下");
	}
	else if (wParam == WM_RBUTTONUP)
	{
		strcpy_s(state, "右键抬起");
	}
	else if (wParam == WM_MOUSEMOVE)
	{
		strcpy_s(state, "移动");
	}

	sprintf_s(buffer, "[鼠标]%s 键代码:x:%d y:%d %s", time.c_str(), pt.x, pt.y, state);
	std::cout << buffer << std::endl;

	//return 1;	// 拦截消息
	return CallNextHookEx(NULL, nCode, wParam, lParam);

}

int main()
{
	HINSTANCE hM = GetModuleHandle(NULL), hK = GetModuleHandle(NULL);
	HHOOK g_Hook = SetWindowsHookEx(WH_KEYBOARD_LL, KeyboardProc, hK, 0);
	HHOOK g_Hook2 = SetWindowsHookEx(WH_MOUSE_LL, MouseProc, hM, 0);

	// 消息循环
	MSG msg;
	while (GetMessage(&msg, NULL, 0, 0))
	{
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

	UnhookWindowsHookEx(g_Hook);

	return 0;
}

结语

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