用c语言写一个远程屏幕差异传输源码
时间: 2024-05-06 08:19:43 浏览: 10
由于远程屏幕差异传输涉及到图像处理和网络传输等技术,因此代码较为复杂。以下是一个简单的远程屏幕差异传输的示例代码:
```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <opencv2/opencv.hpp>
#include <winsock2.h>
#pragma comment(lib, "Ws2_32.lib")
using namespace cv;
int main()
{
// 初始化 Winsock
WSADATA wsaData;
int result = WSAStartup(MAKEWORD(2, 2), &wsaData);
if (result != 0) {
printf("WSAStartup failed: %d\n", result);
return 1;
}
// 创建 socket
SOCKET sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (sock == INVALID_SOCKET) {
printf("socket failed: %d\n", WSAGetLastError());
WSACleanup();
return 1;
}
// 设置服务器地址和端口
sockaddr_in serverAddr;
serverAddr.sin_family = AF_INET;
serverAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
serverAddr.sin_port = htons(12345);
// 连接服务器
result = connect(sock, (SOCKADDR*)&serverAddr, sizeof(serverAddr));
if (result == SOCKET_ERROR) {
printf("connect failed: %d\n", WSAGetLastError());
closesocket(sock);
WSACleanup();
return 1;
}
// 循环读取屏幕截图并发送差异数据
Mat prevFrame, currFrame;
while (true) {
// 截取当前屏幕
HBITMAP hBitmap = (HBITMAP)GetDesktopWindow();
HDC hDC = GetDC(NULL);
HDC hMemDC = CreateCompatibleDC(hDC);
SelectObject(hMemDC, hBitmap);
BITMAP bitmap;
GetObject(hBitmap, sizeof(bitmap), &bitmap);
currFrame.create(bitmap.bmHeight, bitmap.bmWidth, CV_8UC4);
GetBitmapBits(hBitmap, bitmap.bmHeight * bitmap.bmWidthBytes, currFrame.data);
ReleaseDC(NULL, hDC);
DeleteDC(hMemDC);
DeleteObject(hBitmap);
// 计算当前帧与前一帧的差异
if (!prevFrame.empty()) {
Mat diffFrame;
absdiff(prevFrame, currFrame, diffFrame);
vector<uchar> encodedData;
imencode(".jpg", diffFrame, encodedData);
int dataSize = encodedData.size();
send(sock, (const char*)&dataSize, sizeof(int), 0);
send(sock, (const char*)encodedData.data(), dataSize, 0);
}
prevFrame = currFrame.clone();
}
// 关闭 socket
closesocket(sock);
WSACleanup();
return 0;
}
```
需要注意的是,该示例代码仅仅实现了屏幕截图和差异传输的功能,还需要在服务器端进行相应的解码和显示操作。此外,还需要根据具体的应用场景对代码进行相应的修改和优化。
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