我有PID的进程(和名称),我想把它带到前面的 linux(ubuntu)上.在Mac上,我将简单地做SetFrontProcess(pid),在 Windows上我将枚举窗口,选出我想要的一个,并调用SetWindowPos(hwnd,HWND_TOPMOST,SWP_NOMOVE | SWP_NOSIZE);但是我在linux上怎么做了.我已经看过X Lib了,但是大多数/所有这些功能似乎在你的进程中的Windows上运行.

编辑：使用bdk的答案我将这些帮助器添加到我的代码以获取窗口

bool searchHelper(Display* display,Window w,Atom& atomPID,unsigned long pid,Window& result)
{
    bool ret = false;

    Atom atomType;
    int format;
    unsigned long nItems;
    unsigned long bytesAfter;
    unsigned char* propPID = 0;
    if (Success == XGetWindowProperty(display,w,atomPID,1,False,XA_CARDINAL,&atomType,&format,&nItems,&bytesAfter,&propPID))
    {
        if (propPID != 0)
        {
            if (pid == *((unsigned long *)propPID))
            {
                result = w;
                ret = true;
            }
            XFree(propPID);
        }
    }

    if (ret)
        return ret; //we found we can stop

    //check the children of the window
    Window wRoot;
    Window wParent;
    Window *wChild=NULL;
    unsigned nChildren=0;
    if (XQueryTree(display,&wRoot,&wParent,&wChild,&nChildren) != 0 )
    {
        for (unsigned i=0; i<nChildren; ++i)
        {
            ret = searchHelper(display,wChild[i],pid,result);
            if (ret)
                break;
        }
    }
    return ret;
}

bool getWindowFromPid(unsigned long pid,Display* display,Window& result)
{
    Window window = XDefaultRootWindow(display);
    Atom atomPID = XInternAtom(display,"_NET_WM_PID",true);
    if (atomPID == None)
    {
        qDebug("XInternAtom failure");
        return false;
    }
    return searchHelper(display,window,result);
}

现在我成功地获得了窗口,但是当我执行以下操作

if (getWindowFromPid(pid,display,window))
{
    qDebug("Found window ID:%d",window);
    int result = XRaiseWindow(display,window);
    qDebug("XRaiseWindow returned:%d",result);
}

XRaiseWindow返回1(BadRequest). XRaiseWindow的文档没有提到BadRequest的返回码是可能的结果.我不知道有什么问题.我不允许在不同的过程中将其称为Windows？这个焦点是防止钢铁阻碍我吗？有什么想法吗？

编辑编辑：

所以看看xwininfo.c在使用-frame调用它时会做什么,我根据bdk的建议改变了我的代码如下.

if (getWindowFromPid(pid,window))
    {
        qDebug("Found window ID:%d",window);

        //Need the windowmanger frame (or parent) id not window id
        Window root,parent;
        Window *childlist;
        unsigned int ujunk;
        int status = XQueryTree(display,&root,&parent,&childlist,&ujunk);
        if (status && parent && parent != root)
        {
            qDebug("Found frame window ID:%d",parent);
            window = parent;
        }

        XSetWindowAttributes xswa;
        xswa.override_redirect=True;
        int result = XChangeWindowAttributes (display,CWOverrideRedirect,&xswa);
        qDebug("XChangeWindowAttributes returned:%d",result);
        result = XRaiseWindow(display,window);
        qDebug("XRaiseWindow returned:%d",result);
    }
    else
        qDebug("unable to find the window for the pid");

在这一点上,我找到窗口框架ID,但是我从XChangeWindowAttributes和XRaiseWindow得到一个返回代码“1”.我只是不允许修改另一个进程的窗口？

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

 int main(int argc,char **argv)
 {
   Display *dsp = XOpenDisplay(NULL);
   long id = strtol(argv[1],NULL,16);
   XSetWindowAttributes xswa;
   xswa.override_redirect=True;
   XChangeWindowAttributes (dsp,id,&xswa);
   XRaiseWindow ( dsp,id );
   XCloseDisplay ( dsp );
 }