SDL2: saving image as png error

问题

I am trying to make a 2d-map editor. Now if my map is finish I want to save it.

I tried this:

IMG_SavePNG(SDL_GetWindowSurface(window), "C:/Users/<MY_NAME>/Desktop");

but nothing happens. No image get saved and also no error.

Here is the creation of my window:

SDL_Window* window = SDL_CreateWindow("Famonex", 100, 100, WINDOW_WIDTH, WINDOW_HEIGHT,    SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE);

Here are my includes:

#include <SDL.h>
#include <SDL_image.h>
#include <SDL_mixer.h>

回答1:

Damn I just failed at the filepath. I forgot the last word: (filename.png).

But now my image is total black :S.

来源：https://stackoverflow.com/questions/23587461/sdl2-saving-image-as-png-error