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Oh derp. I forgot .jpg wasn't supported. That's why it wasn't loading. The GL issue wasn't fixed however but as you said it doesn't effect the program (from what I can see) at all. Thanks

I was following the tutorial for TGUI in Visual Studio 2013 Pro (Win 8.1 64bit enterprise) when I ran across this problem. Everything compiles fine but when I go to debug the program only the username and password text is displayed the image is not.

The exact error is "An internal OpenGL call failed in RenderTarget.cpp : GL_IVALID_VALUE, a numeric argument is out of range"

I have no idea what that means and the only thing I found on google like that was https://github.com/texus/TGUI/issues/17 .

(Copy paste my code)

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ifdef SFML_STATIC
#pragma comment(lib, "glew.lib")
#pragma comment(lib, "freetype.lib")
#pragma comment(lib, "jpeg.lib")
#pragma comment(lib, "opengl32.lib")
#pragma comment(lib, "winmm.lib")
#pragma comment(lib, "gdi32.lib") 
#endif // SFML_STATIC


#include <SFML/Graphics.hpp>

#include <TGUI/TGUI.hpp>

void loadWidgets(tgui::Gui& gui);

int main()
{
// Create the window
sf::RenderWindow window(sf::VideoMode(800, 600), "Window");
tgui::Gui gui(window);

// Load the font (you should check the return value to make sure that it is loaded)
gui.setGlobalFont("DejaVuSans.ttf");

loadWidgets(gui);

while (window.isOpen())
{
sf::Event event;
while (window.pollEvent(event))
{
if (event.type == sf::Event::Closed)
window.close();

// Pass the event to all the widgets (if there would be widgets)
gui.handleEvent(event);
}

// The callback loop
tgui::Callback callback;
while (gui.pollCallback(callback))
{
// Make sure tha callback comes from the button
if (callback.id == 1)
{
// Get the username and password
tgui::EditBox::Ptr editBoxUsername = gui.get("Username");
tgui::EditBox::Ptr editBoxPassword = gui.get("Password");

sf::String username = editBoxUsername->getText();
sf::String password = editBoxPassword->getText();

// Continue here by checking if the username and password are correct ...
}
}


window.clear();

// Draw all created widgets
gui.draw();

window.display();
}

return EXIT_SUCCESS;
}

void loadWidgets(tgui::Gui& gui)
{
// Create the background image
tgui::Picture::Ptr picture(gui);
picture->load("miranda.jpg");
picture->setSize(800, 600);

// Create the username label
tgui::Label::Ptr labelUsername(gui);
labelUsername->setText("Username:");
labelUsername->setPosition(200, 100);

// Create the password label
tgui::Label::Ptr labelPassword(gui);
labelPassword->setText("Password:");
labelPassword->setPosition(200, 250);

// Create the username edit box
tgui::EditBox::Ptr editBoxUsername(gui, "Username");
editBoxUsername->load("TGUI/widgets/Black.conf");
editBoxUsername->setSize(400, 40);
editBoxUsername->setPosition(200, 140);

// Create the password edit box (we will copy the previously created edit box)
tgui::EditBox::Ptr editBoxPassword = gui.copy(editBoxUsername, "Password");
editBoxPassword->setPosition(200, 290);
editBoxPassword->setPasswordCharacter('*');

// Create the login button
tgui::Button::Ptr button(gui);
button->load("TGUI/widgets/Black.conf");
button->setSize(260, 60);
button->setPosition(270, 440);
button->setText("Login");
button->bindCallback(tgui::Button::LeftMouseClicked);
button->setCallbackId(1);
}