Using the Curl Library

Use the Curl Library under Windows:

To http://curl.haxx.se/under a curl source down, the source code is compiled with VC6, I VS2005 under the compilation, incredibly only a warning.

The implementation code for curl is placed in the dynamic library, the dynamic library is statically compiled to generate Libcurl.lib, and then the "Include/curl" folder under the Curl source directory is copied to its own project (1).

Figure 1

Next you can call the Curl library directly, here is a simple example of online search:

[CPP]View Plaincopy

2. #include  " curl/curl.h "   
4. #pragma  comment (lib, " Ws2_32.lib ")   
6. #pragma  comment  ( lib, " Libcurl.lib " )   
8. #pragma  comment  ( lib, " Ws2_32.lib " )   
10. #pragma  comment  ( lib, " Winmm.lib " )   
12. #pragma  comment  ( lib, " Wldap32.lib " )   
14. int Main ()
16. {
18. CURL *curl;
20. Curlcode Res;
22.     curl = curl_easy_init ();   
24.     if   ( curl )    
26. {
28. Curl_easy_setopt (Curl, Curlopt_url,
30.             " http://www.baidu.com "  );   
32. res = curl_easy_perform (curl);
34. Curl_easy_cleanup (curl);
36. }
38. }

Tip: When compiling the sample program in VS2005, you will be prompted with "LNK2001: unresolved external characters", as follows (reference: http://www.cnblogs.com/zdxster/archive/2011/01/27/1945877.html):

1. Add dependent libraries to the project: Additional dependencies, input----Properties

Note that the Debug configuration uses the Libcurld.lib

2, join the Pre-compilation option: Project----Properties->c/c++, preprocessor---preprocessor, put; Building_libcurl; Http_only copy it in (be careful not to lose ";" ）

Using the Curl Library