C++ windows下判断鼠标点击及获取像素点

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```cpp
#include<iostream>
#include <stdio.h>
#include<windows.h>

#define KEY_DOWN(VK_NONAME) ((GetAsyncKeyState(VK_NONAME) & 0x8000) ? 1:0) //必要
using namespace std;

int main()
{
	POINT p;
	while (true)
	{
		printf("鼠标左键是否按下：");
		//mouse_event(MOUSEEVENTF_LEFTDOWN,0,0,0,0);
		//	Sleep(10);//要留给某些应用的反应时间
		//mouse_event(MOUSEEVENTF_LEFTUP,0,0,0,0);
		//MOUSEEVENTF_LEFTDOWN
		//MOUSEEVENTF_RIGHTDOWN
		if(KEY_DOWN(MOUSE_MOVED))
		{
		    GetCursorPos(&p);//获取鼠标坐标
		    printf("是 x:%d y:%d",p.x,p.y);
		}
		else
		{
		    printf("否");
		}
		printf("n");
		printf("鼠标右键是否按下：");
		if(KEY_DOWN(MOUSE_EVENT))
		{
		    GetCursorPos(&p);//获取鼠标坐标
			printf("是 x:%d y:%d",p.x,p.y);
		}
		else
		{
			printf("否");
		}
		printf("n");
		printf("鼠标滚轮键是否按下：");
		if(KEY_DOWN(MOUSE_WHEELED))
		{
		    printf("是");
		}
		else
		{
		    printf("否");
		}
		
		printf("n");
		
		Sleep(20);//循环时间间隔，防止太占内存
		system("cls");//清屏
	}
}