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Bookmark or Share- c++ - What is an SDL renderer? - Stack OverflowThe SDL_Renderer renders SDL_Texture, which stores the pixel information of one element. It's the new version of SDL_Surface which is much the same. The difference is mostly that SDL_Surface is just a struct containing pixel information, while SDL_Texture is an efficient, driver-specific representation of pixel data.
- c - How to render text in SDL2? - Stack OverflowSDL_Color TextColor = { 255, 0, 0, 255}; // Red SDL color. TTF_Font* Font; // The font to be loaded from the ttf file. SDL_Surface* TextSurface; // The surface necessary to create the font texture. SDL_Texture* TextTexture; // The font texture prepared for render. SDL_Rect TextRect; // Text rectangle area with the position for the texture text.
- events - Inputs in SDL (on key pressed) - Stack OverflowI would like to know how can I detect the press of a key or release of a key in a while loop in SDL. Now, I know you can get the events with SDL like OnKeyPressed, OnKeyReleased, OnKeyHit, etc, but I want to know how to build functions like 'KeyPressed' that returns a boolean, instead of being an event. Example:
- c - Drawing a rectangle with SDL2 - Stack OverflowSDL_Renderer and SDL_Window needs to be set up before you can use them. You already create your window properly, so I won't cover that. Here's how to set up an SDL_Renderer. SDL_Renderer* SDL_CreateRenderer(SDL_Window* window, int index, Uint32 flags)
- c++ - How to draw pixels in SDL 2.0? - Stack OverflowIf you want to set a large rectangle of pixels at once, e.g. the entire screen or a sprite, use SDL_Texture + SDL_RenderCopy and possibly SDL_TEXTUREACCESS_STREAMING, as that will be much faster. Examples at: What is a Blit in SDL? Rendering pixels from array of RGB values in SDL 1.2? Tested on libsdl 2.0.2, Ubuntu 15.10.
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