我使用的是Code :: Blocks 16.01,以及LazyFoo的SDL2.0教程。我無法使用SDL_LoadBMP()加載圖像。無法在CodeBlocks中使用SDL_LoadBMP加載bmp文件
這是我第一次在這裏問一個問題。我做了Google的回答並搜索了這裏的現有問題/答案,但無法解決問題。
這是我的代碼:
/*This source code copyrighted by Lazy Foo' Productions (2004-2015)
and may not be redistributed without written permission.*/
//Using SDL and standard IO
#include <SDL.h>
#include <stdio.h>
//Screen dimension constants
const int SCREEN_WIDTH = 640;
const int SCREEN_HEIGHT = 480;
//Starts up SDL and creates window
bool init();
//Loads media
bool loadMedia();
//Frees media and shuts down SDL
void close();
//The window we'll be rendering to
SDL_Window* gWindow = NULL;
//The surface contained by the window
SDL_Surface* gScreenSurface = NULL;
//The image we will load and show on the screen
SDL_Surface* gHelloWorld = NULL;
bool init()
{
//Initialization flag
bool success = true;
//Initialize SDL
if(SDL_Init(SDL_INIT_VIDEO) < 0)
{
printf("SDL could not initialize! SDL_Error: %s\n", SDL_GetError());
success = false;
}
else
{
//Create window
gWindow = SDL_CreateWindow("SDL Tutorial - Lesson 02", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_SHOWN);
if(gWindow == NULL)
{
printf("Window could not be created! SDL_Error: %s\n", SDL_GetError());
success = false;
}
else
{
//Get window surface
gScreenSurface = SDL_GetWindowSurface(gWindow);
}
}
return success;
}
bool loadMedia()
{
//Loading success flag
bool success = true;
//Load splash image
gHelloWorld = SDL_LoadBMP("/02_getting_an_image_on_the_screen/hello_world.bmp");
if(gHelloWorld == NULL)
{
printf("Unable to load image %s! SDL Error: %s\n", "02_getting_an_image_on_the_screen/hello_world.bmp", SDL_GetError());
success = false;
}
return success;
}
void close()
{
//Deallocate surface
SDL_FreeSurface(gHelloWorld);
gHelloWorld = NULL;
//Destroy window
SDL_DestroyWindow(gWindow);
gWindow = NULL;
//Quit SDL subsystems
SDL_Quit();
}
int main(int argc, char* args[])
{
//Start up SDL and create window
if(!init())
{
printf("Failed to initialize!\n");
}
else
{
//Load media
if(!loadMedia())
{
printf("Failed to load media!\n");
}
else
{
//Apply the image
SDL_BlitSurface(gHelloWorld, NULL, gScreenSurface, NULL);
//Update the surface
SDL_UpdateWindowSurface(gWindow);
//Wait two seconds
SDL_Delay(2000);
}
}
//Free resources and close SDL
close();
return 0;
}
此代碼工作正確的,當我指定的完整路徑。但是有沒有一種更簡單的方法來做到這一點,而不是總是指定整個路徑?
我在哪裏放置圖像,以及如何指定它的路徑?
我將不勝感激您提供的任何幫助。
我把我的文件放在我的項目文件夾(02_getting_an_image_on_the_screen),但它不工作。我刪除/但它不起作用。 – FKH
如果「02_getting_an_image_on_the_screen」是您的項目名稱,您必須將文件放入其中並打開它,只需命名您的文件名。 「hello_world.bmp」 – Shiro
謝謝。我刪除(/ 02_getting_an_image_on_the_screen /),並且正常工作。 – FKH