All Forums  Origin Forum for Programming  Forum for Origin C  problem about "extend origin C via enternal dll

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by xjsccs[/i] [br]an example that a dll created by C is given£¬ however£¬ when the file created by C£«£«£¬ the Origin can't find the function in the enternal dll #include <windows.h> //#include <afxdao.h> /* DllMain is an optional method of entry into a dynamic-link library (DLL). If the function is used, it is called by the system when processes and threads are initialized and terminated, or upon calls to the LoadLibrary and FreeLibrary functions. */ BOOL APIENTRY DllMain(HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) { switch( ul_reason_for_call ) { case DLL_PROCESS_ATTACH: case DLL_THREAD_ATTACH: case DLL_THREAD_DETACH: case DLL_PROCESS_DETACH: break; } return TRUE; } SimpleDll.c __declspec(dllexport) int IncrementMatrix(double *pdMatrix, int iRows, int iCols, double dIncAmount) { int iRow, iCol; for( iRow = 0; iRow < iRows; iRow++ ) { for( iCol = 0; iCol < iCols; iCol++ ) { *pdMatrix += dIncAmount; pdMatrix++; } } return 0; } ps£º can this C file be changed to C++ file, and then complied by c++ complier? [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.