SDL windowsurface size

[N8RzwA7f]

Hello,

in my SDL code the window has a smaller size then
the accompanying windowsurface ? How can this be?
i need them to be the same size



pWindow = SDL_CreateWindow("title",SDL_WINDOWPOS_CENTERED,SDL_WINDOWPOS_CENTERED,windowWidth,windowHeight,SDL_WINDOW_SHOWN);
pWindowSurface = SDL_GetWindowSurface(pWindow);

now pWindowSurface->w is not the same as windowWidth , pWindowSurface->w is much bigger. same for height.

thanks for any help :)

[Peter87]

Is the size of the visible window also bigger?

[newbieg]

Did you do error checking when you initialized SDL?

Try this code that's basically from lazyfoo.com, does it run correctly and output 640 in the console?

#include <SDL2/SDL.h>
#include <cstdio>

const int SCREEN_WIDTH = 640;
const int SCREEN_HEIGHT = 480;


int main(int argc, char** args)
{
        SDL_Window* window = NULL;

        SDL_Surface* screenSurface = NULL;

        if(SDL_Init(SDL_INIT_VIDEO ) < 0)
        {
                printf( "SDL Init has failed. SDL_ERROR: %s\n", SDL_GetError());
        }
        else
        {
                window = SDL_CreateWindow("SDL Tutorial", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_SHOWN);
                if(window == NULL)
                {
                        printf( "SDL Window Creation has failed. SDL_ERROR: %s\n", SDL_GetError());
                }
                else
                {
                        screenSurface = SDL_GetWindowSurface(window);
                        printf("%d\n", screenSurface->w);
                        SDL_FillRect(screenSurface, NULL, SDL_MapRGB(screenSurface->format, 0xFF, 0xFF, 0xFF));
                        SDL_UpdateWindowSurface(window);
                        SDL_Delay(2000);
                }
        SDL_DestroyWindow(window);
        SDL_Quit();
        return 0;
        }
}

I tried breaking the above code, but I couldn't replicate your error. Can you post the full code?