Topics

1

C / RenderWindow storage size unknown

« on: November 02, 2013, 12:01:44 am »

with sfFont, sfText, and sfRenderWindow, i want to initialize and create variables like:

sfVideoMode videoMode = { WINDOW_WIDTH, WINDOW_HEIGHT, BITS_PER_PIXEL };
sfRenderWindow renderWindow;
sfFont font;
sfText text;

&renderWindow = sfRenderWindow_create(videoMode, p_TITLE, sfDefaultStyle, NULL);
&font = sfFont_createFromFile(FILENAME_FONT);
&text = sfText_create();
 

but i get "storage size of RenderWindow isn't known" and similar errors. I don't really understand what the problem is, and CSFML's Types.h shows (which doesn't clarify anything for me):

typedef struct sfFont sfFont;
typedef struct sfRenderWindow sfRenderWindow;
typedef struct sfText sfText;
 

Can anyone explain my problem? Am I forced to initialize pointer types and _create functions while minding the scope? I'd ideally like to initialize the variables in one place then pass the pointers into a function that creates/sets their objects. This might not be possible though.

Thanks!

2

Graphics / [Solved] Pointer to sf::Text crashes when drawing to window

« on: June 28, 2013, 11:49:55 pm »

I'm having a strange issue with my SFML project. When I create a pointer for a sf::Text then draw it to the window in the same function scope, it works. However, when I create the sf::Text and store in a class in one function then draw from that member variable, it breaks in Debug mode with the message: "Unhandled exception at 0x77cc15de in TestSfmlApp.exe: 0xC0000005: Access violation reading location 0xccccccd0." Below is my project info and a condensed test program that fails for me.

System Info:
SFML 2.0 for "Visual C++ 10 (2010) - 32 bits"
Windows 7 64-bit, VS 2010

VS 2010 settings:
dynamic libs according to http://sfml-dev.org/tutorials/2.0/start-vc.php

Test program that crashes at line 42:
http://pastebin.com/L2XQeCdU
(but works when I remove lines 29-31 and 65)

Not sure if I copied the right stuff, but here's the call stack:
    ntdll.dll!77cc15de()    
    [Frames below may be incorrect and/or missing, no symbols loaded for ntdll.dll]   
    ntdll.dll!77cc15de()    
    ntdll.dll!77cb014e()    
    sfml-graphics-d-2.dll!5b80ad77()    
    sfml-graphics-d-2.dll!5b80cd56()    
    sfml-graphics-d-2.dll!5b80abae()    
    sfml-graphics-d-2.dll!5b80869a()    
    sfml-graphics-d-2.dll!5b805b2d()    
    sfml-graphics-d-2.dll!5b852986()    
    sfml-graphics-d-2.dll!5b8346e3()    
>   TestSfmlApp.exe!Game::Loop()  Line 42 + 0x1a bytes   C++
    TestSfmlApp.exe!main(int argc, char * * argv)  Line 66   C++
    TestSfmlApp.exe!__tmainCRTStartup()  Line 555 + 0x19 bytes   C
    TestSfmlApp.exe!mainCRTStartup()  Line 371   C
    kernel32.dll!770333aa()    
    ntdll.dll!77cd9ef2()    
    ntdll.dll!77cd9ec5()    


I've been stuck on this for 3-4 days now, but haven't found anything on forums or tutorials. Everything I read suggests the VS 2010 settings are wrong for linking the libraries, but I followed that link above exactly. Any suggestions?