我需要一段通过手机给电脑开热点的方式链接的C#程序,功能是通讯字符串
时间: 2024-05-20 19:16:25 浏览: 5
程序
要实现通过手机给电脑开热点的方式链接,需要使用手机的无线热点功能和电脑的无线网络连接功能。以下是一段简单的C程序,可以通过串口连接手机并通过AT指令开启热点,然后通过电脑的无线网络连接到该热点。
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <windows.h>
#define BUFFER_SIZE 1024
int main()
{
HANDLE hSerial;
DCB dcbSerialParams = {0};
COMMTIMEOUTS timeouts = {0};
char buffer[BUFFER_SIZE] = {0};
DWORD bytes_written, total_bytes_written = 0;
// 打开串口
hSerial = CreateFile("COM3", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hSerial == INVALID_HANDLE_VALUE) {
fprintf(stderr, "Error opening serial port\n");
return 1;
}
// 设置串口参数
dcbSerialParams.DCBlength = sizeof(dcbSerialParams);
if (!GetCommState(hSerial, &dcbSerialParams)) {
fprintf(stderr, "Error getting serial port state\n");
CloseHandle(hSerial);
return 1;
}
dcbSerialParams.BaudRate = CBR_115200;
dcbSerialParams.ByteSize = 8;
dcbSerialParams.StopBits = ONESTOPBIT;
dcbSerialParams.Parity = NOPARITY;
if (!SetCommState(hSerial, &dcbSerialParams)) {
fprintf(stderr, "Error setting serial port state\n");
CloseHandle(hSerial);
return 1;
}
// 设置超时时间
timeouts.ReadIntervalTimeout = 50;
timeouts.ReadTotalTimeoutConstant = 50;
timeouts.ReadTotalTimeoutMultiplier = 10;
timeouts.WriteTotalTimeoutConstant = 50;
timeouts.WriteTotalTimeoutMultiplier = 10;
if (!SetCommTimeouts(hSerial, &timeouts)) {
fprintf(stderr, "Error setting serial port timeouts\n");
CloseHandle(hSerial);
return 1;
}
// 发送AT指令,开启热点
sprintf(buffer, "AT+QAPSTART\r\n");
if (!WriteFile(hSerial, buffer, strlen(buffer), &bytes_written, NULL)) {
fprintf(stderr, "Error writing to serial port\n");
CloseHandle(hSerial);
return 1;
}
// 读取返回结果
while (total_bytes_written < BUFFER_SIZE) {
if (!ReadFile(hSerial, buffer + total_bytes_written, 1, &bytes_written, NULL)) {
fprintf(stderr, "Error reading from serial port\n");
CloseHandle(hSerial);
return 1;
}
if (bytes_written == 0) {
Sleep(10);
continue;
}
total_bytes_written += bytes_written;
if (buffer[total_bytes_written - 1] == '\n') {
break;
}
}
// 关闭串口
CloseHandle(hSerial);
// 输出返回结果
printf("%s\n", buffer);
return 0;
}
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