来自http://tunps.com/wininet-get-web-source-example
#include <windows.h>#include <wininet.h>#pragma comment(lib, "wininet")#define ID_URLEDITBOX 1#define ID_GETBUTTON 2#define ID_SHOWEDITBOX 3LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow){ static TCHAR szAppName[] = TEXT ("BtnLook") ; HWND hwnd ; MSG msg ; WNDCLASS wndclass ; wndclass.style = CS_HREDRAW | CS_VREDRAW ; wndclass.lpfnWndProc = WndProc ; wndclass.cbClsExtra = 0 ; wndclass.cbWndExtra = 0 ; wndclass.hInstance = hInstance ; wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ; wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ; wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ; wndclass.lpszMenuName = NULL ; wndclass.lpszClassName = szAppName ; if (!RegisterClass (&wndclass)) { MessageBox (NULL, TEXT ("This program requires Windows NT!"), szAppName, MB_ICONERROR) ; return 0 ; } hwnd = CreateWindow (szAppName, TEXT ("WinINet源代码获取"), WS_OVERLAPPEDWINDOW, GetSystemMetrics (SM_CXSCREEN) / 4, GetSystemMetrics (SM_CYSCREEN) / 4, GetSystemMetrics (SM_CXSCREEN) / 2, GetSystemMetrics (SM_CYSCREEN) / 2, NULL, NULL, hInstance, NULL) ; ShowWindow (hwnd, iCmdShow) ; UpdateWindow (hwnd) ; while (GetMessage (&msg, NULL, 0, 0)) { TranslateMessage (&msg) ; DispatchMessage (&msg) ; } return msg.wParam ;}LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam){ static HWND hwndUrlEdt,hwndGetBtn,hwndShowEdt; HINTERNET hConnect,hRequest,hSession; LPTSTR lpszHost; char szBuffer[1024*1024/10]; TCHAR szStr[100]; DWORD dwSize=0; DWORD dwDownloaded; static LPCTSTR pAcceptType[] = { TEXT("Accept: */*"), NULL }; switch (message) { case WM_CREATE: hwndUrlEdt = CreateWindow (TEXT ("EDIT"), NULL, WS_CHILD | WS_VISIBLE | WS_BORDER | ES_LEFT | ES_AUTOHSCROLL , 20,20,500,20, hwnd, (HMENU)ID_URLEDITBOX, ((LPCREATESTRUCT) lParam) -> hInstance, NULL) ; hwndGetBtn = CreateWindow (TEXT ("BUTTON"), TEXT("GO"), WS_CHILD | WS_VISIBLE | BS_DEFPUSHBUTTON , 530,20,30,20, hwnd, (HMENU)ID_GETBUTTON, ((LPCREATESTRUCT) lParam) -> hInstance, NULL) ; hwndShowEdt = CreateWindow (TEXT ("EDIT"), TEXT(""), WS_CHILD | WS_VISIBLE | WS_BORDER | WS_HSCROLL | WS_VSCROLL | ES_AUTOHSCROLL | ES_AUTOVSCROLL | ES_MULTILINE , 20,60,600,250, hwnd, (HMENU)ID_SHOWEDITBOX, ((LPCREATESTRUCT) lParam) -> hInstance, NULL) ; return 0; case WM_COMMAND: if(LOWORD(wParam) == ID_GETBUTTON) { GetWindowText(hwndUrlEdt,szStr,sizeof(szStr)/sizeof(TCHAR)); hSession = InternetOpen(TEXT("testWinINet"), PRE_CONFIG_INTERNET_ACCESS, NULL, INTERNET_INVALID_PORT_NUMBER, 0); hConnect = InternetOpenUrl(hSession,szStr,NULL,0,INTERNET_FLAG_DONT_CACHE,0); ZeroMemory(szBuffer,sizeof(szBuffer)); while (InternetReadFile(hConnect,szBuffer,sizeof(szBuffer),&dwDownloaded)) { if (0==dwDownloaded) break; szBuffer[dwDownloaded]=0; } SetWindowText(hwndShowEdt,szBuffer); ZeroMemory(szBuffer,sizeof(szBuffer)); } return 0; } return DefWindowProc (hwnd, message, wParam, lParam) ;} |
程序缺点很多，1是点击“GO”之后，获取源代码的时候会卡住，因为没有用多线程，
2，存储源代码的内存空间受到了限制，csdn上面的人说受vc编译器堆栈大小的限制，超出了就stack overflow了。目前我只能使用临时文件存储的方法来解决。
3是子窗口都是使用代码写的，所以字体都是默认的fixedsys"system"，中文字体十分难看。
4是字符串如果不是gb2312和纯英文的，其他字符串全部乱码，如上图就是一个最好的例证。
说了这么多缺点，说出来以后“深造”后再修正吧。嘎嘎～～
