C + + Get URL picture, HTML file, CInternetSession "Go"

http://blog.csdn.net/gnixuyil/article/details/7688439

Get Network pictures

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2. CString url="Http://www.google.com.hk/images/srpr/logo3w.png"
6. CInternetSession session;
8. CHttpFile *httpfile = (CHttpFile *) session. OpenURL (URL);
10. CStdioFile Imgfile;
12. Char buff[1024]; //Cache
16. Imgfile.open ("picture name. png", Cfile::modecreate | Cfile::modewrite |  Cfile::typebinary);
20. DWORD Dwstatuscode;
22. Httpfile->queryinfostatuscode (Dwstatuscode);
26. if (Dwstatuscode = = HTTP_STATUS_OK) {
28. int size=0;
30. Do {
32. Size = Httpfile->read (buff,1024); //Read pictures
34. Imgfile.write (buff,size);
36. }while (Size > 0);
38. }
42. Httpfile->close ();
44. Session. Close ();

Gets the HTML of the URL

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2. CInternetSession session;
4. CHttpFile *httpfile = (CHttpFile *) session. OpenURL (M_url);
8. DWORD Dwstatuscode;
10. Httpfile->queryinfostatuscode (Dwstatuscode);
14. CString getdata=_t ("");
18. if (Dwstatuscode = = HTTP_STATUS_OK) {
20. CString line_data=_t ("");
22. While (Httpfile->readstring (line_data)) {
24. GetData + = Line_data; //Read HTML
26. }
28. GetData. TrimRight ();
30. }
34. Httpfile->close (); //HTML data has been placed in the GetData
36. Session. Close ();
40. If the Utf_8 page is saved in GetData (you can see the Meta field of HTML)
44. Strcoding CFM; //Code conversion class, see below for details
48. String temp = (LPCSTR) GetData.  GetBuffer (); //Web data, converted to string type
50. string output;
52. Utf_8 to GB2312 so that MFC controls can display
54. cfm.  utf_8togb2312 (output, (char *) temp.data (), strlen (Temp.data ()));
58. If the MFC character set is Unicode, you also need to convert multibyte to wide-byte
60. temp = output;
62. DWORD dwnum = MultiByteToWideChar (CP_ACP, 0, Temp.c_str (),-1, NULL, 0);
64. wchar_t *pwtext;
66. Pwtext = new wchar_t[dwnum];
68. MultiByteToWideChar (CP_ACP, 0, Temp.c_str (),-1, Pwtext, dwnum);
72. Gets the converted result m_data used to display
74. m_data = Pwtext;
76. delete []pwtext;

Encoding Conversion class: http://blog.csdn.net/gnixuyil/article/details/7688469

C + + Get URL picture, HTML file, CInternetSession "Go"