我该怎么做图形很容易地在一个现代的Linux？ [英] How do I do graphics easily in a modern linux?

问题描述

下面是何许C程序的例子人们可以在旧时代写的：

 的#include＆LT;＆graphics.h中GT;
＃包括LT＆;＆stdlib.h中GT;
＃包括LT＆;＆stdio.h中GT;
＃包括LT＆;＆CONIO.H GT;无效的主要（）
{
    INT GD = DETECT，克;    initgraph（安培; GD，和安培;克，C：\\\\ \\\\ TURBOC BGI）;
    圆（200100150）;    残培（）;
    closegraph（）;
}
 

我认为这是MSDOS下的Turbo C。它可以让你在屏幕上绘图，并可以很容易地扩展到迅速做动画图形，如在黑客的xscreensaver发现。

我怎么会写在Ubuntu在GCC等价？它可以用Java做？

解决方案

 ＃包括LT＆; X11 / Xlib.h＆GT;
＃包括LT＆;＆stdlib.h中GT;/ * GCC -std = gnu99 -o圈circle.c -lX11 * /INT主（INT ARGC，CHAR *的argv []）
{  / *连接到X服务器，使一个窗口* /
  显示* DPY = XOpenDisplay（GETENV（显示））;
  窗口W = XCreateSimpleWindow（DPY，DefaultRootWindow（DPY）
                                  100，100，640，480，1，
                                  BlackPixel（DPY，DefaultScreen（DPY））
                                  WhitePixel（DPY，DefaultScreen（DPY）））;  / *提高并等待* /
  XSelectInput（DPY，W，StructureNotifyMask）;
  XMapRaised（DPY，w）的;
  对于（XEventË;（e.type = MapNotify）！;
      XWindowEvent（DPY，W，StructureNotifyMask，急症室））;  / *创建一个图形上下文在窗口绘制* /
  GC G = XCreateGC（DPY，W，0，NULL）;  / *绘制一个圆* /
  XDrawArc（DPY，W，G，200,100,150,150,0,360 * 64）;
  XFlush（DPY）;  / *等待按键preSS * /
  XSelectInput（DPY，W，KeyReleaseMask）;
  对于（XEventË;（e.type = KeyRelease）！;
      XWindowEvent（DPY，W，KeyReleaseMask，急症室））;  /*清理*/
  XDestroyWindow（DPY，w）的;
  XCloseDisplay（DPY）;
}
 

Here is an example of the sort of C program one could write in the old days:

#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>

void main()
{
    int gd=DETECT, gm;

    initgraph(&gd, &gm, "c:\\turboc\\bgi");
    circle(200,100,150);

    getch();
    closegraph();
}

I think this was turbo C under MSDOS. It gives you a drawing on the screen and can be easily extended to do speedy animated graphics such as those found in xscreensaver hacks.

How would I write the equivalent in gcc on ubuntu? Can it be done in Java?

解决方案

#include<X11/Xlib.h>
#include<stdlib.h>

/* gcc -std=gnu99 -o circle circle.c -lX11 */

int main (int argc, char *argv[])
{

  /* connect to the X server and make a window */
  Display *dpy = XOpenDisplay (getenv ("DISPLAY"));
  Window w = XCreateSimpleWindow (dpy, DefaultRootWindow (dpy),
                                  100, 100, 640, 480, 1,
                                  BlackPixel (dpy, DefaultScreen (dpy)),
                                  WhitePixel (dpy, DefaultScreen (dpy)));

  /* raise it and wait */
  XSelectInput (dpy, w, StructureNotifyMask);
  XMapRaised (dpy, w);
  for(XEvent e; ( e.type != MapNotify );
      XWindowEvent (dpy, w, StructureNotifyMask, &e));

  /* create a graphics context for drawing in the window */
  GC g = XCreateGC (dpy, w, 0, NULL);

  /* draw a circle */
  XDrawArc(dpy,w,g,200,100,150,150,0,360*64);
  XFlush(dpy);

  /*wait for key press*/
  XSelectInput (dpy, w, KeyReleaseMask);
  for(XEvent e; ( e.type != KeyRelease ); 
      XWindowEvent (dpy, w, KeyReleaseMask, &e));

  /*clean up*/
  XDestroyWindow( dpy, w );
  XCloseDisplay (dpy);
}

这篇关于我该怎么做图形很容易地在一个现代的Linux？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！