我想在SDL 2.0中绘制一个矩形轮廓,以便用作选择框。有谁知道如何在SDL 2.0中制作?
您正在寻找SDL_RenderDrawRect:
int SDL_RenderDrawRect(SDL_Renderer* renderer,
const SDL_Rect* rect);
典型用法如下:
SDL_Rect rectToDraw = {100,100,100,100} // Just some random rect
//Set Color of Rect with SDL_SetRenderDrawColor if needed
SDL_RenderDrawRect(renderer, &rectToDraw);