102 lines
2.5 KiB
C++
102 lines
2.5 KiB
C++
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#include "widget.h"
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#include <QApplication>
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#include <QList>
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#include <QObject>
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#include <QList>
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#include <QDebug>
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// X11 一种可能性是添加 QTextStream 包含该错误出现的位置。
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// 至于 X11 相关的错误，请尝试将 X11 包含在 Qt 包含之后。
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#include <X11/Xlib.h>
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#include <X11/Xatom.h>
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#include <X11/X.h>
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#include <unistd.h>
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// https://www.jianshu.com/p/c906fbe1ad00
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// https://stackoverflow.com/questions/1201179/how-to-identify-top-level-x11-windows-using-xlib
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// https://www.cnblogs.com/alalazy/p/12323089.html
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class WindowsMatchingPid
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{
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public:
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WindowsMatchingPid(Display *display, Window wRoot, unsigned long pid)
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: _display(display)
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, _pid(pid)
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{
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_atomPID = XInternAtom(display, "_NET_WM_PID", True);
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if(_atomPID == None)
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{
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return;
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}
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search(wRoot);
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}
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const QList<Window> result() const { return _result; }
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private:
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unsigned long _pid;
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Atom _atomPID;
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Display *_display;
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QList<Window> _result;
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void search(Window w)
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{
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Atom type;
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int format;
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unsigned long nItems;
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unsigned long bytesAfter;
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unsigned char *propPID = 0;
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if(Success == XGetWindowProperty(_display, w, _atomPID, 0, 1, False, XA_CARDINAL,
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&type, &format, &nItems, &bytesAfter, &propPID))
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{
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if(propPID != 0)
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{
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if(_pid == *((unsigned long *)propPID))
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_result.append(w);
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XFree(propPID);
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}
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}
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Window wRoot;
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Window wParent;
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Window *wChild;
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unsigned nChildren;
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if(0 != XQueryTree(_display, w, &wRoot, &wParent, &wChild, &nChildren))
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{
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for(unsigned i = 0; i < nChildren; i++)
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search(wChild[i]);
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}
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}
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};
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int main(int argc, char *argv[])
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{
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QApplication a(argc, argv);
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// Widget w;
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// w.show();
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QList<QObject*> m_pformList;
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int pid = getpid();
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Display *display = XOpenDisplay(0);
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WindowsMatchingPid match(display, XDefaultRootWindow(display), pid);
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const QList<Window> result = match.result();
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for(int i=0; i<result.count();i++)
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{
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unsigned long winId = (unsigned long)(result.at(i));
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QWidget* win = QWidget::find(winId);
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if(win!=NULL&&win->isWindow()&&win->isVisible()){
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m_pformList.append((QObject*)win);
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}
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}
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XCloseDisplay(display);
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return a.exec();
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}
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