Messages

1

Graphics / Problem with an SFML VertexArray Example

« on: November 02, 2019, 05:31:08 pm »

Hello! I'm watching this example into SFML VertexArray Examples (the last in the bot: the Particle System):

https://www.sfml-dev.org/tutorials/2.5/graphics-vertex-array.php

I'm trying to use it and it's very good but i have some question, and the most important of them is:

What is the method virtual void draw(RenderTarget, RenderStates), where did they use it?

How does it works? If i remove the function, it gives the error:

particles.cpp|88|error: cannot declare variable 'particles' to be of abstract type 'ParticleSystem'

At the main where it creates the class instance. WHy? Thank you

2

General / Re: Keep Window Opened, but continue to use terminal

« on: February 13, 2019, 05:39:30 pm »

sorry, i need to keep actived a windows, but continue to use the terminal console. I'm trying using the threads that execute a function with a while(window.isopen()). But when i close it, also if i do thread.detach(), the console retrives: Failed to activate OpenGL context: the resource is already utilized

3

General / Keep Window Opened, but continue to use terminal

« on: February 13, 2019, 03:38:03 pm »

Hello! I need to create a basic plotting program (already realized). But now i need to create a second Window, that needs to be opened during all the program use, in order to retrive the information (Observer). So, when i close my first window, i return on terminal, but this window need to rest opened.

I tried to declare it in an other function and put it in the first while of the first win, but nothing.

It's possible to do that? Thank you

4

General / Re: Linking to CodeBlocks

« on: February 10, 2019, 01:23:38 am »

ok i solved, it was that i haven't put openal32.dll in the .exe folder

5

General / Linking to CodeBlocks

« on: February 09, 2019, 08:21:43 pm »

Hello! I founded this library in order to draw some polygons. I have followed the guide to link it with CodeBlocks (i have codeblocks with MinGW incorporated, so i have the libgcc_s_sjlj-1.dll. So i have downloaded the latest version GCC 5.1.0 TDM (SJLJ), but when i starrt the exmeple program (i also have the .dll on the .exe, .o and .cpp folder), it gives, for three times (i'm using graphics, system and windows): impossible to fin the ingress point __gxx_personality_v0 of mydir/sfml-system-2.dll and mydir/sfml-window-2.dll.

What i'm doing wrong? Thank you so much