Installing and working with FLTK on Visual Studio 2012 - c++

Question

My machine in Windows 7 32-bit and my compiler for C++ is Visual Studio 2012 so first I downloaded FLTK from here (http://www.stroustrup.com/Programming/FLTK/) and then I did the works as follows has wanted me:
I. Unzip the downloaded file and open the main folder, fltk-l.l.? In a
Visual C++ folder (e.g., vc2005 or vcnet), open fltk.dsw. If asked about
updating old project files, choose Yes to All.
PS: My compiler is vc2012 instead of vc2005 and there wasn't any file named fltk.dsw in vc2005 or vcnet folders, so I chose the fltk.sln from vcnet and installed it. There were some failing when installing but it finished finally!
From the Build menu, choose Build Solution. This may take a few minutes.
The source code is being compiled into static link libraries so that
you do not have to recompile the FLTK source code any time you make
a new project. When the process has finished , close Visual Studio.
From the main FLTK directory open the lib folder. Copy (not just
move/drag) all the .lib files except README.lib (there should be
scven) into C:\Prograrn Files\Microsoft Visual Studio\Vc\lib.
Go back to the FLTK main directory and copy the FL folder into
C:\Program Files\Microsoft Visual Studio\Vc\include.
Create a new project in Visual Studio with one change to the usual procedure:
create a "\Vin32 project" instead of a "console application" when
choosing your project type. Be sure to create an "empty project"; otherwise,
some "software wizard" will add a lot of stuff to your project that
you are unlikely to need or understand.
In Visual Studio, choose Project from the main (top) menu, and from
the drop-down menu choose Properties.
In the Properties dialog box, in the left menu, click the Linker folder.
This expands a sub-menu. In this sub-menu, click Input. In the Additional
Dependencies text field on the right, enter the following text:
fltkd.lib wsock32.lib comctl32.lib fltkjpegd.lib fltkimagesd.lib
[The following step may be lIImecessary because il is now the default.]
In the Ignore Specific Library text field, enter the following text:
libcd.lib
[This step may be unnecessary because /MDd is now the default.] In the
left menu of the same Properties window, dick C/C++ to expand a different
sub-menu. Click the Code Generation sub-menu item. In the right
menu, change the Runtime Library drop-down to Multi-threaded
Debug DLL (/MDd). Click OK to close the Properties window.
I this step I added a new item to that newly created project (I named that project testv.cpp) and pasted this simple code for testing the FLTK:
#include <FL/Fl.h>
#include <FL/Fl_box.h>
#include <FL/Fl_Window.h>
//***************************
int main()
{
FI_Window window(200, 200, "Window title");
FL_Box box(O,O,200,200, "Hey, I mean, He llo, World! ");
window.show();
return Fl::run();
}
After running this project (pressing F5), 11 errors appeared! They are in bellow:
Error 1 error LNK2019: unresolved external symbol "public: static int
__cdecl Fl::run(void)" (?run#Fl##SAHXZ) referenced in function _main C:\Users\CS\documents\visual studio 2012\Projects\testv\testv\testv.obj
Error 2 error LNK2019: unresolved external symbol "protected:
__thiscall Fl_Widget::Fl_Widget(int,int,int,int,char const *)" (??0Fl_Widget##IAE#HHHHPBD#Z) referenced in function "public:
__thiscall Fl_Box::Fl_Box(int,int,int,int,char const *)" (??0Fl_Box##QAE#HHHHPBD#Z) C:\Users\CS\documents\visual studio
2012\Projects\testv\testv\testv.obj
Error 3 error LNK2019: unresolved external symbol "public: virtual
__thiscall Fl_Widget::~Fl_Widget(void)" (??1Fl_Widget##UAE#XZ) referenced in function "public: virtual __thiscall
Fl_Box::~Fl_Box(void)"
(??1Fl_Box##UAE#XZ) C:\Users\CS\documents\visual studio
2012\Projects\testv\testv\testv.obj
Error 4 error LNK2001: unresolved external symbol "public: virtual
void __thiscall Fl_Widget::resize(int,int,int,int)"
(?resize#Fl_Widget##UAEXHHHH#Z) C:\Users\CS\documents\visual studio
2012\Projects\testv\testv\testv.obj
Error 5 error LNK2001: unresolved external symbol "protected: virtual
void __thiscall Fl_Box::draw(void)"
(?draw#Fl_Box##MAEXXZ) C:\Users\CS\documents\visual studio
2012\Projects\testv\testv\testv.obj
Error 6 error LNK2001: unresolved external symbol "public: virtual int
__thiscall Fl_Box::handle(int)" (?handle#Fl_Box##UAEHH#Z) C:\Users\CS\documents\visual studio
2012\Projects\testv\testv\testv.obj
Error 7 error LNK2019: unresolved external symbol "public: __thiscall
Fl_Window::Fl_Window(int,int,char const *)"
(??0Fl_Window##QAE#HHPBD#Z) referenced in function
_main C:\Users\CS\documents\visual studio 2012\Projects\testv\testv\testv.obj
Error 8 error LNK2019: unresolved external symbol "public: virtual
__thiscall Fl_Window::~Fl_Window(void)" (??1Fl_Window##UAE#XZ) referenced in function _main C:\Users\CS\documents\visual studio
2012\Projects\testv\testv\testv.obj
Error 9 error LNK2019: unresolved external symbol "public: virtual
void __thiscall Fl_Window::show(void)" (?show#Fl_Window##UAEXXZ)
referenced in function _main C:\Users\CS\documents\visual studio
2012\Projects\testv\testv\testv.obj
Error 10 error LNK2019: unresolved external symbol WinMain#16
referenced in function __tmainCRTStartup C:\Users\CS\documents\visual
studio 2012\Projects\testv\testv\MSVCRTD.lib(crtexew.obj)
Error 11 error LNK1120: 10 unresolved
externals C:\Users\CS\documents\visual studio
2012\Projects\testv\Debug\testv.exe
I think the problem is to do with the creating the project. After I created an empty project from Win32 Project I clicked on Add new item and chose the .cpp type. I don't know was it correct or not.
Any idea for fixing the problem?

Answer 1

You are getting that error because you are entering all the library names on one line without a separator. It is taking the whole list as one library. Click on the ellipsis then enter each library name separated by a newline.
Instead of wsock32.lib, use ws2_32.lib

Answer 2

You are getting that error because you are entering all the library
names on one line without a separator. It is taking the whole list as
one library. Click on the ellipsis then enter each library name
separated by a newline.
Instead of wsock32.lib, use ws2_32.lib
Just to add. To Separate each library, put a semicolon after each library name (ex. libraryname.lib; libraryname.lib) or just press enter on the text box to go to the next line so Visual Studio will read it as next line and anything you enter to it will consider it as a library name.
Example:
libraryname.lib - Now, press enter so it will go to the next line, VS will recognize at a library name.
libraryname.lib - This is the next line and your new library
I am studying C++ and using Microsoft Visual Studio 2015 ^_^