位图无法在 SDL 中加载

***固定
*****结果我的位图文件被破坏了。我可以打开文件查看，但我的应用程序无法查看。我制作了一个新的图像，效果很好。

我在sdl中显示位图图像时遇到问题。程序以代码2退出，所以我知道位图没有加载。我在windows 7 64位上使用vc2010。BMP的名称是hello.BMP，我试着把它放在应用程序文件、源文件和项目文件旁边，但它仍然无法加载它。我也试过把它放进c:\中，然后从那里加载它，但没有成功。这是我第一次尝试使用SDL。这是代码：

#include "stdlib.h"
#include "SDL.h"
    int main(int argc, char *argv[])
    {
        SDL_Surface *screen;    //This pointer will reference the backbuffer
        SDL_Surface *image;    //This pointer will reference our bitmap sprite
        SDL_Surface *temp;    //This pointer will temporarily reference our bitmap sprite
        SDL_Rect src, dest;    //These rectangles will describe the source and destination regions of our blit
        //We must first initialize the SDL video component, and check for success
        if (SDL_Init(SDL_INIT_VIDEO) != 0) {
            printf("Unable to initialize SDL: %sn", SDL_GetError());
            return 1;
        }
        //When this program exits, SDL_Quit must be called
        atexit(SDL_Quit);
        //Set the video mode to fullscreen 640x480 with 16bit colour and double-buffering
        screen = SDL_SetVideoMode(640, 480, 16, SDL_DOUBLEBUF | SDL_FULLSCREEN);
        if (screen == NULL) {
            printf("Unable to set video mode: %sn", SDL_GetError());
            return 1;
        }
        //Load the bitmap into a temporary surface, and check for success
        temp = SDL_LoadBMP("hello.bmp");
        if (temp == NULL) {
            printf("Unable to load bitmap: %sn", SDL_GetError());
            return 2;
        }
        //Convert the surface to the appropriate display format
        image = SDL_DisplayFormat(temp);
        //Release the temporary surface
        SDL_FreeSurface(temp);
        //Construct the source rectangle for our blit
        src.x = 0;
        src.y = 0;
        src.w = image->w;    //Use image->w to display the entire width of the image
        src.h = image->h;    //Use image->h to display the entire height of the image
        //Construct the destination rectangle for our blit
        dest.x = 100;        //Display the image at the (X,Y) coordinates (100,100)
        dest.y = 100;
        dest.w = image->w;    //Ensure the destination is large enough for the image's entire width/height
        dest.h = image->h;
        //Blit the image to the backbuffer
        SDL_BlitSurface(image, &src, screen, &dest);
        //Flip the backbuffer to the primary
        SDL_Flip(screen);
        //Wait for 2500ms (2.5 seconds) so we can see the image
        SDL_Delay(2500);
        //Release the surface
        SDL_FreeSurface(image);
        //Return success!
        return 0;
    }