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我有一個使用SDL作爲外部庫的項目。該項目使用_SDL_WM_SetCaption，_SDL_FillRect或_SDL_MapRGBA等函數。我告訴鏈接器包含兩個庫SDL.lib和SDLmain.lib，並告訴它在放置這些庫的文件夾中查找。我還用dumpbin.exe檢查了庫文件，並且函數在那裏。但是，它仍然不能編譯/鏈接？爲什麼？有人有主意嗎？未解決的外部符號，即使我認爲我正確鏈接（MSVC）
編輯：這裏是連接器/編譯器錯誤的輸出示例：
14>libtestd.lib(sdlgl.obj) : error LNK2019: unresolved external symbol _SDL_WM_SetCaption referenced in function "public: void __thiscall SDLGLEngine::SetTitle(char *)" ([email protected]@@[email protected])
14>libtestd.lib(sdlgl.obj) : error LNK2019: unresolved external symbol _SDL_FillRect referenced in function "public: bool __thiscall SDLGLEngine::Init(int,int,int,bool)" ([email protected]@@[email protected])
14>libtestd.lib(sdlgl.obj) : error LNK2019: unresolved external symbol _SDL_MapRGBA referenced in function "public: bool __thiscall SDLGLEngine::Init(int,int,int,bool)" ([email protected]@@[email protected])
14>libtestd.lib(sdlgl.obj) : error LNK2019: unresolved external symbol _SDL_SetVideoMode referenced in function "public: bool __thiscall SDLGLEngine::Init(int,int,int,bool)" ([email protected]@@[email protected])
14>libtestd.lib(sdlgl.obj) : error LNK2019: unresolved external symbol _SDL_GL_SetAttribute referenced in function "public: bool __thiscall SDLGLEngine::Init(int,int,int,bool)" ([email protected]@@[email protected])
14>libtestd.lib(sdlgl.obj) : error LNK2019: unresolved external symbol _SDL_Quit referenced in function "public: bool __thiscall SDLGLEngine::Init(int,int,int,bool)" ([email protected]@@[email protected])
14>libtestd.lib(sdlgl.obj) : error LNK2019: unresolved external symbol _SDL_Init referenced in function "public: bool __thiscall SDLGLEngine::Init(int,int,int,bool)" ([email protected]@@[email protected])
它們是否具有相同的編譯標誌？像-MT/-MD？你鏈接到調試或發佈版本？ – gongzhitaao
你是否從'_SDL_Init'或'SDL_Init'的代碼中調用方法？ –
嗯，我必須檢查SDL_Init ... – user2011985