Flickering

[BeautiCode]

So I'm just getting back into SFML...This program is meant to display the message as I hold down the backspace button. But it's flickering badly, why is this?

Code: [Select]

#include <SFML/Graphics/RenderWindow.hpp>
#include <SFML/Graphics/Text.hpp>
#include <SFML/Graphics/Font.hpp>
#include <SFML/Window/Event.hpp>
int main()
{
sf::RenderWindow win(sf::VideoMode(500, 500), "Refresher", sf::Style::Default);
sf::Text wb;
sf::Font font;
font.loadFromFile("C:\\Windows\\Fonts\\Arial.ttf");
win.setVerticalSyncEnabled(true);
wb.setColor(sf::Color::Blue);
wb.setString("Welcome Back to SFML!");
wb.setCharacterSize(20);
wb.setStyle(sf::Text::Bold);
wb.setFont(font);
wb.setOrigin(wb.getLocalBounds().width / 2.0f, wb.getLocalBounds().height / 2.0f);
wb.setPosition(win.getSize().x / 2.0f, win.getSize().y / 2.0f);
while (win.isOpen())
{
sf::Event e;
win.clear();
while (win.pollEvent(e))
{
switch (e.type)
{
case sf::Event::Closed:
{
win.close();
}break;
case sf::Event::KeyPressed:
{
switch (e.key.code)
{
case sf::Keyboard::BackSpace:
{
win.draw(wb);
}break;
}
}break;
}
}
win.display();
}
return 0;
}

[AlejandroCoria]

That's because the event is generated when the key is pressed, and every few milliseconds (depending on the configuration of your operating system). They do not occur in all frames. You should use a bool to maintain the state of the key.

[BeautiCode]

That's because the event is generated when the key is pressed, and every few milliseconds (depending on the configuration of your operating system). They do not occur in all frames. You should use a bool to maintain the state of the key.

Alright thank you. One more question, I forgot...How do you remove the console in the back of the window?

[AlejandroCoria]

You should look at your project settings (if you are using an IDE).

[BeautiCode]

You should look at your project settings (if you are using an IDE).

Trying to find the setting in VS2013

[BeautiCode]

My solution in Code::Blocks was to change the "Build Targets" setting, but I don't see that in VS2013.

[BeautiCode]

Nvm I found a solution.
I linked

Code: [Select]

sfml-main-d.lib
and changed
debug -> configeration properties -> linker -> system -> SubSystem to "Windows"

[Hapax]

There is no need to store a boolean value in conjunction with events here. It would make more sense to simply read the current state of the key (outside of the event loop) with:

if (sf::Keyboard::isKeyPressed(sf::Keyboard::BackSpace))
    window.draw(wb);

See the keyboard tutorial 

[AlejandroCoria]

That's right. I usually recommend the use of events because they are only activated when the window is in focus, which is what you usually want. But obviously it is another possible solution

[Hapax]

I usually recommend the use of events because they are only activated when the window is in focus, which is what you usually want

Or you could combine isKeyPressed() with this 

[AlejandroCoria]

I started using SFML in version 1.6 and for some reason I never remember that function was added