[英]Window not displaying SDL2
I am using SDL2 for the first time, and when I try to create a window, it's not displaying.我第一次使用 SDL2,当我尝试创建 window 时,它没有显示。 The only sight of the window is an icon spawning in my dock ( Image of the icon , SDLTest.out is the name of my executable file).
window 的唯一视线是在我的 Dock中生成的图标(图标的图像,SDLTest.out 是我的可执行文件的名称)。 I found out that it spawned when
SDL_INIT()
was called.我发现它是在调用
SDL_INIT()
时产生的。
I tried updating the window, changing its color and adding the flag SDL_WINDOW_SHOWN
, but none of these solutions worked.我尝试更新 window,更改其颜色并添加标志
SDL_WINDOW_SHOWN
,但这些解决方案均无效。 I even pasted a code from the Internet, but it didn't work better.我什至从互联网上粘贴了一个代码,但效果并不好。
Here is the code that I pasted:这是我粘贴的代码:
#include <SDL2/SDL.h>
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv[])
{
SDL_Window *window = NULL;
SDL_Renderer *renderer = NULL;
int status = EXIT_FAILURE;
SDL_Color orange = {255, 127, 40, 255};
if(0 != SDL_Init(SDL_INIT_VIDEO))
{
fprintf(stderr, "Error SDL_Init : %s", SDL_GetError());
goto Quit;
}
window = SDL_CreateWindow("SDL2", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
640, 480, SDL_WINDOW_SHOWN);
if(NULL == window)
{
fprintf(stderr, "Error SDL_CreateWindow : %s", SDL_GetError());
goto Quit;
}
renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
if(NULL == renderer)
{
fprintf(stderr, "Error SDL_CreateRenderer : %s", SDL_GetError());
goto Quit;
}
if(0 != SDL_SetRenderDrawColor(renderer, orange.r, orange.g, orange.b, orange.a))
{
fprintf(stderr, "Error SDL_SetRenderDrawColor : %s", SDL_GetError());
goto Quit;
}
if(0 != SDL_RenderClear(renderer))
{
fprintf(stderr, "Error SDL_SetRenderDrawColor : %s", SDL_GetError());
goto Quit;
}
SDL_Delay(500);
SDL_RenderPresent(renderer);
SDL_Delay(500);
status = EXIT_SUCCESS;
Quit:
if(NULL != renderer)
SDL_DestroyRenderer(renderer);
if(NULL != window)
SDL_DestroyWindow(window);
SDL_Quit();
return status;
}
My OS is MacOS 11.6, my compiler GCC, my computer has a graphic card Intel Iris Pro Graphics 6200, and I installed SDL2 using Homebrew.我的操作系统是 MacOS 11.6,我的编译器是 GCC,我的电脑有显卡 Intel Iris Pro Graphics 6200,我使用 Homebrew 安装了 SDL2。
Can someone help me?有人能帮我吗?
I just needed an event loop.我只需要一个事件循环。 I added this code and it worked:
我添加了这段代码,它起作用了:
SDL_bool quit = SDL_FALSE;
while(!quit)
{
SDL_RenderPresent(renderer);
SDL_WaitEvent(&event);
if(event.type == SDL_QUIT)
quit = SDL_TRUE;
}
Thank you to HolyBlackCat for your comment!感谢HolyBlackCat 的评论!
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