I have been working on several programming languages like Java and Python and recently I came to C++. I want to build a GUI program and eventually I was suggested to use FLTK, which is claimed to be lightweight and user-friendly. However, what I was told is to install a series of third-party tools, while I still can't figure out how to create a simple GUI application.
I was first told to install an enormous IDE Dev-C++ and download the FLTK source code (obtained here). Then some "tutorials" on the Internet also suggested me install a FLTK package (obtained here), while I couldn't find any tutorials or documentations about how to actually "import" the library (I mean, something like specifying the classpath and import classes in Java). I eventually tried to copy the FLTK source code into the Dev-C++ folder Dev-Cpp\MinGW64\x86_64-w64-mingw32\include, created a FLTK project and started compiling the following code (auto-generated):
/*
** Copyright © YYYY NAME
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU Library General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/**
@file main.cpp
@author NAME
@date YYYY-MM-DD
@version 0.01
*/
#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Box.H>
int
main(int argc, char ** argv)
{
Fl_Window *window;
Fl_Box *box;
window = new Fl_Window(300, 180);
box = new Fl_Box(20, 40, 260, 100, "Hello World!");
box->box(FL_UP_BOX);
box->labelsize(36);
box->labelfont(FL_BOLD+FL_ITALIC);
box->labeltype(FL_SHADOW_LABEL);
window->end();
window->show(argc, argv);
return(Fl::run());
}
Instead of a successful compilation, what appears is an error message: (copied from the Compile Log)
Compiling single file...
--------
- Filename: C:\C++\GUITest\main.cxx
- Compiler Name: TDM-GCC 4.9.2 32-bit Release
Processing C++ source file...
--------
- C++ Compiler: C:\Program Files\Dev-Cpp\MinGW64\bin\g++.exe
- Command: g++.exe "C:\C++\GUITest\main.cxx" -o "C:\C++\GUITest\main.exe" -m32 -std=c++11 -I"C:\Program Files\Dev-Cpp\MinGW64\include" -I"C:\Program Files\Dev-Cpp\MinGW64\x86_64-w64-mingw32\include" -I"C:\Program Files\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include" -I"C:\Program Files\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++" -L"C:\Program Files\Dev-Cpp\MinGW64\x86_64-w64-mingw32\lib32" -static-libgcc -m32
In file included from C:/Program Files/Dev-Cpp/MinGW64/x86_64-w64-mingw32/include/vadefs.h:9:0,
from C:/Program Files/Dev-Cpp/MinGW64/x86_64-w64-mingw32/include/_mingw.h:282,
from C:/Program Files/Dev-Cpp/MinGW64/x86_64-w64-mingw32/include/crtdefs.h:10,
from C:/Program Files/Dev-Cpp/MinGW64/x86_64-w64-mingw32/include/stdio.h:9,
from C:/Program Files/Dev-Cpp/MinGW64/x86_64-w64-mingw32/include/FL/fl_utf8.h:33,
from C:/Program Files/Dev-Cpp/MinGW64/x86_64-w64-mingw32/include/FL/Fl.H:30,
from C:\C++\GUITest\main.cxx:26:
C:/Program Files/Dev-Cpp/MinGW64/x86_64-w64-mingw32/include/_mingw.h:686:33: fatal error: sdks/_mingw_directx.h: No such file or directory
#include "sdks/_mingw_directx.h"
^
compilation terminated.
I really don't know how should I proceed. It seems to me that C++ is a support-lacking and undeveloped programming language which really sucks. Please help me, or at least, give me some hints, to create a simple GUI, and correct my misconceptions if there are any. Thanks in advance.
