#include <stdio.h>

#include <conio.h>//getch函数要定义此头文件
#include <windows.h>
int main()
{
RECT rect,conrect;//矩形
char title[1024];
HDC hscreendc,hconsoledc,hmemdc;//DC 设备描述符，画板
HBITMAP hbmp;//位图句柄
printf("按下任意键开始捕获系统桌面\n");
getch();//等待输入
hdesktopwnd = GetDesktopWindow();//1.获取桌面窗口的句柄
GetWindowRect(hdesktopwnd,&rect);//2.获取桌面窗口的矩形大小
GetConsoleTitle(title,1024);//3.获取控制平台窗口的标题
hconsolewnd = FindWindow(NULL,title);//4.根据标题获取控制平台窗口句柄
GetWindowRect(hconsolewnd,&conrect);//5.获取控制平台窗口的矩形大小
hscreendc = GetDC(hdesktopwnd);//6.获取桌面窗口的DC
hconsoledc = GetDC(hconsolewnd);//7.获取控制台窗口的DC
hmemdc = CreateCompatibleDC(hscreendc);//8.创建一个和桌面DC兼容的内存DC
//9.把桌面窗口捕获到然后拷贝到兼容DC里
hbmp = CreateCompatibleBitmap(hscreendc,rect.right,rect.bottom);
SelectObject(hmemdc,hbmp);
BitBlt(hmemdc,0,0,rect.right,rect.bottom,hscreendc,0,0,SRCCOPY);
//10.把兼容DC里的位图画到控制台DC上
StretchBlt(hconsoledc,0,0,conrect.right-conrect.left,
conrect.bottom-conrect.top,hmemdc,0,0,1920,1280,SRCCOPY);
//11.释放资源
DeleteObject(hbmp);
DeleteObject(hmemdc);
ReleaseDC(hconsolewnd,hconsoledc);
ReleaseDC(hdesktopwnd,hscreendc);

getch();//让程序暂停

return 0;
}