X11无法打开窗口

如何解决X11无法打开窗口

我试图打开一个X11窗口，打印一个像素，然后添加代码以使Terminate（）返回true。但这不会成为一个窗口。这是我的代码：

#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xos.h>
#include <iostream>

int x = 0;
int y = 0;

bool Termination() {
    return true;
}

int main() {
    display *dspl = XOpendisplay(NULL);
    if (!dspl) return 1;

    int screenNumber = DefaultScreen(dspl);
    unsigned long white = WhitePixel(dspl,screenNumber);
    unsigned long black = BlackPixel(dspl,screenNumber);

    Window win = XCreateSimpleWindow(dspl,DefaultRootwindow(dspl),50,1280,720,black,white);
    XSetStandardProperties(dspl,win,"Lel","Gaem",None,NULL,NULL);

    GC gc = XCreateGC(dspl,0);
    XSetBackground(dspl,gc,black);
    XSetForeground(dspl,white);
    XClearWindow(dspl,win);
    XMapRaised(dspl,win);

    XDrawPoint(dspl,x,y);

    while (Termination())
    {
    }

    XFreeGC(dspl,gc);
    XDestroyWindow(dspl,win);
    XClosedisplay(dspl);
    printf("Job's done!\n");
    return 0;
}

什么使X11无法显示我的窗口？

解决方法

在片刻之前添加

  XMapWindow(dspl,win);
  XInternAtom(dspl,"WM_DELETE_WINDOW",False);