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POC++ 307 Errors when trying to include winhttp.h in visual studio 2010
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copied!<p>I have a big big problem. I'm trying to use WinHttp to download file with C++ and I'm using Visual Studio 2010 in order to do this thing. </p> <p>My problem is that the program is not compiling because are generated 307 errors, all refering to <code>winhttp.h</code>. I mention that I have included that file. What could be the problem? Thanks!</p> <p>There are some: </p> <pre><code>------ Build started: Project: a, Configuration: Debug Win32 ------ b. Cpp a. Cpp c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(50): error C2146: Syntax error: missing ';' before identifier 'HINTERNET' c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(50): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(50): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(51): error C2143: syntax error: missing ';' before '*' c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(51): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(51): error C2378: 'HINTERNET': redefinition; symbol cannot be overloaded with a typedef c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(50): see declaration of 'HINTERNET' c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(51): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(53): error C2146: syntax error: missing ';' before identifier 'INTERNET_PORT' c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(53): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(53): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(54): error C2143: syntax error: missing ';' before '*' c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(54): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(54): error C2378: 'INTERNET_PORT': redefinition; symbol cannot be overloaded with a typedef c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(53): see declaration of 'INTERNET_PORT' c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(54): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(95): error C2146: syntax error: missing ';' before identifier 'dwResult' c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(95): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(95): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(96): error C2146: syntax error: missing ';' before identifier 'dwError' c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(96): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(96): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(107): error C2146: syntax error: missing ';' before identifier 'dwMajorVersion' c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(107): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(107): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(108): error C2146: syntax error: missing ';' before identifier 'dwMinorVersion' c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(108): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(108): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(144): error C2146: syntax error: missing ';' before identifier 'dwStructSize' c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(144): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(144): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c: \program files (x86)\microsoft sdks\windows\v7.0a\include\winhttp. H(145): error C2146: syntax error: missing ';' before identifier 'lpszScheme' </code></pre> <hr> <p>Now I have another problem. This is my code:</p> <pre><code>#include <windows.h> #include <winhttp.h> #include <stdio.h> #include <iostream> using namespace std; #include <string.h> int main() { DWORD dwSize = 0; DWORD dwDownloaded = 0; LPBYTE pszOutBuffer; BOOL bResults = FALSE; HINTERNET hSession = NULL, hConnect = NULL, hRequest = NULL; // Use WinHttpOpen to obtain a session handle. hSession = WinHttpOpen( L"Internet Explorer example", WINHTTP_ACCESS_TYPE_DEFAULT_PROXY, WINHTTP_NO_PROXY_NAME, WINHTTP_NO_PROXY_BYPASS, 0 ); // Specify an HTTP server. if( hSession ) hConnect = WinHttpConnect( hSession, L"www.my-new-gadget.com", INTERNET_DEFAULT_HTTPS_PORT, 0 ); // Create an HTTP request handle. if( hConnect ) hRequest = WinHttpOpenRequest( hConnect, L"GET", L"index.php", NULL, WINHTTP_NO_REFERER, NULL, NULL); // Send a request. if( hRequest ) bResults = WinHttpSendRequest( hRequest, WINHTTP_NO_ADDITIONAL_HEADERS, 0, WINHTTP_NO_REQUEST_DATA, 0, 0, 0 ); // End the request. if( bResults ) bResults = WinHttpReceiveResponse( hRequest, NULL ); HANDLE hFile = CreateFile("D:\\index.php", GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if (bResults) { do { // Check for available data. dwSize = 0; if (!WinHttpQueryDataAvailable( hRequest, &dwSize)) printf( "Error %u in WinHttpQueryDataAvailable.\n", GetLastError()); // Allocate space for the buffer. pszOutBuffer = new byte[dwSize+1]; if (!pszOutBuffer) { printf("Out of memory\n"); dwSize=0; } else { // Read the Data. ZeroMemory(pszOutBuffer, dwSize+1); if (!WinHttpReadData( hRequest, (LPVOID)pszOutBuffer, dwSize, &dwDownloaded)) { printf( "Error %u in WinHttpReadData.\n", GetLastError()); } else { //printf("%s", pszOutBuffer); DWORD wmWritten; bool fr = WriteFile(hFile, pszOutBuffer, dwSize, &wmWritten, NULL); int n = GetLastError(); } // Free the memory allocated to the buffer. delete [] pszOutBuffer; } } while (dwSize>0); } CloseHandle(hFile); // Report any errors. if (!bResults) printf("Error %d has occurred.\n",GetLastError()); // Close any open handles. if (hRequest) WinHttpCloseHandle(hRequest); if (hConnect) WinHttpCloseHandle(hConnect); if (hSession) WinHttpCloseHandle(hSession); return 0; } </code></pre> <hr> <p>And the output is:</p> <pre><code>------ Build started: Project: a, Configuration: Debug Win32 ------ a.cpp c:\users\admin\documents\visual studio 2010\projects\a\a\a.cpp(73): warning C4800: 'BOOL' : forcing value to bool 'true' or 'false' (performance warning) a.obj : error LNK2019: unresolved external symbol __imp__WinHttpCloseHandle@4 referenced in function _main a.obj : error LNK2019: unresolved external symbol __imp__WinHttpReadData@16 referenced in function _main a.obj : error LNK2019: unresolved external symbol __imp__WinHttpQueryDataAvailable@8 referenced in function _main a.obj : error LNK2019: unresolved external symbol __imp__WinHttpReceiveResponse@8 referenced in function _main a.obj : error LNK2019: unresolved external symbol __imp__WinHttpSendRequest@28 referenced in function _main a.obj : error LNK2019: unresolved external symbol __imp__WinHttpOpenRequest@28 referenced in function _main a.obj : error LNK2019: unresolved external symbol __imp__WinHttpConnect@16 referenced in function _main a.obj : error LNK2019: unresolved external symbol __imp__WinHttpOpen@20 referenced in function _main MSVCRTD.lib(crtexew.obj) : error LNK2019: unresolved external symbol _WinMain@16 referenced in function ___tmainCRTStartup c:\users\admin\documents\visual studio 2010\Projects\a\Debug\a.exe : fatal error LNK1120: 9 unresolved externals ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== </code></pre> <p>What could now be the problem? I'm trying for 2 days to make a piece of program to download a file from a given URL. It's driving me crazy! Please help me!</p>

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