SDL.SDL_Rect rectangle=newSDL.SDL_Rect();;//////SDL画矩形长方形////////////0:红,1:绿,2:蓝 (默认值为1:绿色)publicvoidDrawRect(intwidth,intheight,intcolor=1){if(color ==0) { SDL.SDL_SetRenderDrawColor(sdlrenderer,255,0,0,1);// 红}elseif(color ==1) { SDL.SDL_SetRende...
#include <SDL.h> int main(int argc, char* argv[]) { // 初始化SDL SDL_Init(SDL_INIT_VIDEO); // 创建窗口 SDL_Window* window = SDL_CreateWindow("Transparent Rectangle", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 800, 600, SDL_WINDOW_SHOWN); // 创建渲染器 SDL_Renderer* rendere...
#include <SDL2/SDL.h> int main() { SDL_Init(SDL_INIT_VIDEO); SDL_Window* window = SDL_CreateWindow("Moving Rectangle", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, 0); SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, 0); SDL_Rect rect = { 100, 100, 50,...
Uint32 color); Draw a rectangle with upper left corner in x,y being w the width and h the height. voidDraw_FillRect(SDL_Surface *super, Sint16 x,Sint16 y, Uint16 w,Uint16 h, Uint32 color); The same as above but the rectangle is filled. This function is equivalent to SDL_FillR...
let rectText = Rectangle (P (V2 50 50)) (V2 (div intWidth 8) (div intHeight 8)) copy renderer texture Nothing $ Just rectText destroyTexture texture present renderer unless qPressed (appLoop renderer font) 程序的运行截图如下: C:\Windows\Fonts\YuGothB.ttc 是我随便找的一个字体,有需要可...
I followed your suggestion to use SDL3 for some 2D drawing. Please review my code logic。 According to the code logic, the display should be in the upper left corner of the window, showing a red rectangle and a green rectangle. But this is not the case when using SDL3. The following...
Rect是rectangle的前四个字母,就是英语“矩形”的意思。所以SDL_Rect就是SDL的矩形的结构体定义。 在SDL源代码中,此结构体的定义如下: typedef struct{ Sint16 x, y; Uint16 w, h; } SDL_Rect; 1. 2. 3. 4. 这个结构体包含四个参数: 给应用添加图标 ...
#include "SDL.h" /* Moving Rectangle */ int main(int argc, char *argv[]) { SDL_Window *window; SDL_Renderer *renderer; SDL_Texture *texture; SDL_Event event; SDL_Rect r; if (SDL_Init(SDL_INIT_VIDEO) < 0) { SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL:...
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SDL讲解,图形基本概念非常到位 SDL–2Video 静宜大学信息工程系蔡奇伟副教授©2007 纲要 绘图系统设定显示模式绘图页BLIT ColorkeyAlpha值Clipping 显示到荧幕SDL_image函式库 图形显示 framebuffer 像素(Pixel,PictureElement)Pixel&Resolution 荧幕上的一个光点称为一个像素（...