使用 internetcheckconnection 在 C++ 中检查互联网连接
checking internet connection in c++ using internetcheckconnection
我正在尝试使用 internetcheckconnection()
检查用户的互联网连接。
代码:
#include <Wininet.h>
#include <iostream>
#include <string.h>
#include <windows.h>
#pragma comment(lib, "wininet.lib")
int main()
{
char url[128];
strcat(url, "http://www.techtoolbox.com");
bool bConnect = InternetCheckConnection(url, FLAG_ICC_FORCE_CONNECTION, 0);
if (bConnect) {
//internet connection exists !
std::cout << "yes";
}
else {
std::cout << "no ";
}
return 0;
}
但是出现了很多错误,比如
29 11 C:\Program Files (x86)\Dev-Cpp\MinGW64\x86_64-w64-mingw32\include\Wininet.h [Error] 'LPVOID' does not name a type
30 11 C:\Program Files (x86)\Dev-Cpp\MinGW64\x86_64-w64-mingw32\include\Wininet.h [Error] 'HINTERNET' does not name a type
32 11 C:\Program Files (x86)\Dev-Cpp\MinGW64\x86_64-w64-mingw32\include\Wininet.h [Error] 'WORD' does not name a type
and 431 more .
我已经安装了 Wininet.lib,但仍然会出现这些错误。如果你能解决这个简单的问题,那就太好了:) .
LPVOID
、HINTERNET
和错误消息中的其他类型在 windows.h
中声明。您应该重新排列包含以修复这些错误:
#include <windows.h>
#include <Wininet.h>
我正在尝试使用 internetcheckconnection()
检查用户的互联网连接。
代码:
#include <Wininet.h>
#include <iostream>
#include <string.h>
#include <windows.h>
#pragma comment(lib, "wininet.lib")
int main()
{
char url[128];
strcat(url, "http://www.techtoolbox.com");
bool bConnect = InternetCheckConnection(url, FLAG_ICC_FORCE_CONNECTION, 0);
if (bConnect) {
//internet connection exists !
std::cout << "yes";
}
else {
std::cout << "no ";
}
return 0;
}
但是出现了很多错误,比如
29 11 C:\Program Files (x86)\Dev-Cpp\MinGW64\x86_64-w64-mingw32\include\Wininet.h [Error] 'LPVOID' does not name a type
30 11 C:\Program Files (x86)\Dev-Cpp\MinGW64\x86_64-w64-mingw32\include\Wininet.h [Error] 'HINTERNET' does not name a type
32 11 C:\Program Files (x86)\Dev-Cpp\MinGW64\x86_64-w64-mingw32\include\Wininet.h [Error] 'WORD' does not name a type and 431 more .
我已经安装了 Wininet.lib,但仍然会出现这些错误。如果你能解决这个简单的问题,那就太好了:) .
LPVOID
、HINTERNET
和错误消息中的其他类型在 windows.h
中声明。您应该重新排列包含以修复这些错误:
#include <windows.h>
#include <Wininet.h>