lnk2019

问题 Im having problems with making a good interface and use it... My setup overview: An "interface" GraphicsLibrary.H ... virtual void drawPoint(const Point& p, unsigned char r, unsigned char g, unsigned char b, double pointSize); with an "empty" GraphicsLibrary.ccp! because its an interface, so "OpenGL" is an graphics library... so i have an OpenGL.CPP with: void GraphicsLibrary::drawPoint(const Point& p, unsigned char r, unsigned char g, unsigned char b, double pointSize) { //some code } which

问题 I work on Windows7 x64 in c++ language. I created a project that open firefox browser when I show a marker to my web cam, using ShellExecuteEx function. My project works well with visual studio 2010. But, when I try to run my project with Qt Creator, I get this error: main_cam.obj:-1: error: LNK2019: riferimento al simbolo esterno __imp__ShellExecuteExW@4 non risolto nella funzione _main debug\cam.exe:-1: error: LNK1120: 1 esterni non risolti The code is: #include <iostream> #include <stdio.h

问题 Hello I'm programming in Visual C++ 2010 (spanish) with UNICODE and /clr. I have a header file called "fileFuncs.h": #include <iostream> #include <fstream> #include <string> #include <stdlib.h> #include <string> using namespace std; std::wstring s2ws(const std::string& s) { int len; int slength = (int)s.length() + 1; len = MultiByteToWideChar(CP_ACP, 0, s.c_str(), slength, 0, 0); wchar_t* buf = new wchar_t[len]; MultiByteToWideChar(CP_ACP, 0, s.c_str(), slength, buf, len); std::wstring r(buf)

问题 I have a solution in Visual Studio, it has 2 projects namely PAL_TEST and Unit_Test. I have a class in PAL_TEST, CPALResponse.h #include "CFW_Stl.h" class CPALResponse { public: void SetCommandSucceeded(bool bCommandSucceeded = false); bool GetCommandSucceeded(); void SetCommandType(int nCommandType); int GetCommandType(); private: bool m_bCommadSucceeded; int m_nCommandType; }; another file in PAL_TEST CPALResponse.cpp #include "stdafx.h" #include "CFW_CPALResponse.h" void CPALResponse:

问题 Basicaly this is my assignment project for C++ and i'm pretty new to C++ and i'm getting this error up. Also having an error for the commented code in main == is not a matched operand 1>Main2.obj : error LNK2019: unresolved external symbol "class std::basic_ostream > & __cdecl operator<<(class std::basic_ostream > &,class Customer &)" (??6@YAAAV?$basic_ostream@DU?$char_traits@D@std@@@std@@AAV01@AAVCustomer@@@Z) referenced in function "void __cdecl display(struct Node *)" (?display@@YAXPAUNode

问题 I'm getting a weird linker error when trying to compile against a VS2005 CRT with a Visual Studio 2015 toolset. The same code compiles perfect on any other toolset version (2005,2010,2012,2013). The code must compile under VS2005 CRT to properly link with other projects. How to reproduce: Create a new empty Dynamic Library (dll) project (In VS2015, toolset v140), add a source (.cpp) file: //1.cpp #include <string> static std::wstring thisWillFail[] = { L"test" }; Change the VC++ include

问题 Ok, so I'm having a problem trying figure out the problem in my code. I have a lot of code so I'm only going to post the relevant parts that are messing up when I compile. I have the following function inside of a class and it will compile and everything will run fine until I call the function "CalculateProbabilityResults" and it runs the 7th line of code within it. I've "de-commented" this line of code in my program so you can find it easier. I'm pretty sure I have the right #include

问题 How to fix a Visual Studio 2012 error LNK2019: unresolved external symbol "__declspec(dllimport) public: class std::basic_string? I've been compiling a solution containing one exe and several static lib projects on which the exe depends fine with Visual Studio 2008. The static libs include: TCL: tcl84tsx.lib wxWidgets: wxbase.lib zlib.lib ws2_32.lib xerces-c_2.lib SNMP Research EMANATE: subagent.lib,agent.lib,emanate.lib,pack.lib,mibtable.lib,devkit.lib etc. I loaded the solution into Visual

问题 The error verbatim reads 1>yes.obj : error LNK2019: unresolved external symbol "int __cdecl availableMoves(int * const,int (* const)[4],int)" (?availableMoves@@YAHQAHQAY03HH@Z) referenced in function "void __cdecl solveGame(int * const,int (* const)[4])" (?solveGame@@YAXQAHQAY03H@Z) I've never seen this error before. Here are the two functions I believe it's referring to though. int availableMoves(int a[15], int b[36][3],int openSpace){ int count=0; for(int i=0; i<36;i++){ if(i < 36 && b[i][2

问题 I'm Helping a friend with her C++, but to be honest we need a big bit of help. Why we always get this error: "MSVCRTD.lib(crtexe.obj) : error LNK2019: unresolved external symbol main referenced in function _ _tmainCRTStartup" The Code is below: //Maria Delgado (1013725) - Coursework 2 - Program Conducting timber component structural design #include<iostream> #include<iomanip> #include<cmath> #include<fstream> #include<string> using namespace std; //Variables for Strength Properties in (N/mm2)