3 replies to this topic

[Bluefirehawk]

Hi guys

I tried to link to the SFML library with a QTCreator project under windows. And it didn't work.
QTCreator doesn't allow me to select .dll files, the wizard only accepts .lib.

So this is what i did:

• I downloaded SFML 1.6 for MinGW and put it in the project folder under /lib.
• I have MinGW installed and selected it as my compiler/builder in the project settings.
• I tried building the program with both writing down the relative path to the dll, and by using -L(path to /lib) -lmylib... with the first one, it said it didn't find sfml-window.dll, with the second one, it didn't find sfml-graphics.dll when trying to run the exe.

I am guessing, i am doing something very simple very wrong. Here are the relevant files:

project file

Spoiler

TEMPLATE = app
CONFIG += console
CONFIG += debug_and_release
#QT += opengl
SOURCES += main.cpp \
	sources/nestedtest/myclass.cpp
HEADERS += \
	sources/nestedtest/myclass.h
win32-g++ {
	CONFIG(release, debug) {
		TARGET = tryout_release
	} else {
		TARGET = tryout_debug
	}
	INCLUDEPATH += $$PWD/lib/SFML-1.6/include
	DEPENDPATH += $$PWD/lib/SFML-1.6/include
	LIBS += -L$$PWD/lib/SFML-1.6/lib/ -lsfml-graphics -lsfml-window -lsfml-audio -lsfml-system
	#LIBS += $$PWD/lib/SFML-1.6/lib/sfml-graphics.dll
	#LIBS += $$PWD/lib/SFML-1.6/lib/sfml-window.dll
	#LIBS += $$PWD/lib/SFML-1.6/lib/sfml-audio.dll
	#LIBS += $$PWD/lib/SFML-1.6/lib/sfml-system.dll
}

main.cpp

Spoiler

#include <iostream>
#include <SFML/Graphics.hpp>
#include <QDebug>
using namespace std;
// Creates the RenderWindow with a size of 800*600 and 32 bits colordepth as
// a global variable
sf::RenderWindow App(sf::VideoMode(800, 600, 32), "Jump & Run Tutorial");
// The event that we use to catch the closing of the game
sf::Event Event;
bool init() {
	// return that initialization was successful
	return true;
}
void update() {
	// look for events
	while (App.GetEvent(Event))
	{
		// if the user did close the window (by pressing the x button of the
		// window, e.g.), close the game
		if (Event.Type == sf::Event::Closed) {
			App.Close();
		}
	}
}
void draw() {
	// Clear the graphics window
	App.Clear();
	// Everything that needs to be drawn will be here later
	// Actualize the display
	App.Display();
	// Look the the console window to see this output
	//qDebug()<<"Just to see qDebug in action.";
}
int main()
{
	bool initSuccess=init();
	// if an error occured during init() close the game
	if (!initSuccess){
		App.Close();
	}
	// gameloop till game is closed
	while (App.IsOpened())
	{
		update();
		draw();
	}
	return EXIT_SUCCESS;
}

[Faelenor]

You don't link a DDL, you link the library file corresponding to the DDL. Did you read the instruction on SFML website?

http://www.sfml-dev.....6/start-vc.php

Edit: well, the link I provided is for VS, but the idea is the same...

Edited by Faelenor, 05 October 2012 - 06:58 AM.

[Bluefirehawk]

I don't use visual studio, I use MinGW. There are no .lib files (all i've found about those suggested they are proprietary VS libraries).

I read the instructions, I can compile and link samples via GCC, but I want to do it with QMake. I haven't found a satisfying tutorial for QMake, the only thing I've found was to put the dlls in the windows system folder, which i would like to avoid.

E:The strange thing is i can compile, the linker too finishes without an error. I am guessing the exe doesn't know where to find the dll's.

Edited by Bluefirehawk, 05 October 2012 - 07:08 AM.

[Faelenor]

In that case, you just have to copy the DDL in your .exe folder? Or make sure the startup directory is the one containing the DDL?