x.c

X11编程的一个小例子

/* --- Xtest.c --- */

#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <stdio.h>

main()
{
    Display *display;
    Window window;
    XSetWindowAttributes attr;
    XSizeHints *sz;

    /* 建立一个 display 的 connection */
    display = XOpenDisplay(NULL);

    /* 建立和设定 window 的属性 */
    window = XCreateWindow(display, XDefaultRootWindow(display),
               100, 100, 300, 300, 2, XDefaultDepth(display, 0),
               InputOutput, CopyFromParent, 0, &attr);

    /* 和 Window Manager 进行沟通 */
    XStoreName(display, window, "hello!! world!!");
    sz = XAllocSizeHints();
    sz->x = 100;
    sz->y = 100;
    sz->width = 300;
    sz->height = 300;
    sz->flags = USPosition | USSize;
    XSetNormalHints(display, window, sz);

    /* Mapping Window  正式影射到显示器画面*/
    printf("Map window\n");
    XMapWindow(display, window);

    printf("XFlush\n");
    XFlush(display);

/*
  .................
  .... 程式处理部分 ..
  ....................
*/

/* 关闭视窗 */
    printf("Destory Window\n");
    XDestroyWindow(display, window);

    printf("XFlush\n");
    XFlush(display);

/* 关闭 display */
    printf("close display\n");
    XCloseDisplay(display);
}