Hi,

i have written a sample program using Qwindow.
i would like to set some color or add some image to QWindow, but as soon as i run the program the window is opening with background color of other below windows , in my case i m opening from qtcreator,so the window is opening with qtcrator background.


hellotest.cpp
Qt Code: 
  1. #include "hellotest.h"
  2.  
  3. HelloTest :: HelloTest(QWindow *parent):
  4.   QWindow(parent)
  5.  
  6. {
  7.      QWidget *cont = new QWidget;
  9.     qDebug() << "in hello test";
  10.     //QWidget *window = new QWidget(parent);
  11.     //QProcess *process = new QProcess(this);
  13.     //args<<"-style"<<"fusion";
  14.     //process->start("../../sample-build-Qt5_1Alpha-Debug/sample");//,args);
  15.  
  16.     QWidget *window = new QWidget ;//::createWindowContainer(this,0,0);
  17.     window -> resize(500,500);
  18.     window ->setPalette(QPalette(QColor(255,0,0,255)));
  19.     //setIcon(QIcon("/home/ramu/Pictures/screen.png"));
  20.     //window -> setPalette(QPalette(QColor(0,255,0,255)));
  21.     //window -> setAutoFillBackground(true);
  22.     cont -> setLayout(vl);
  23.     vl -> addWidget(window);
  24. }
  25.  
  26. HelloTest::~HelloTest()
  27. {
  28.  
  29. }
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hellotest.h

Qt Code: 
  1. #ifndef HELLOTEST_H
  2. #define HELLOTEST_H
  3.  
  4. #include <QtWidgets/QWidget>
  5. #include <QDebug>
  6. #include <QtX11Extras/qx11info_x11.h>
  7. #include <QtWidgets/QApplication>
  8. #include <QtWidgets/QVBoxLayout>
  9. #include <QWindow>
  10. #include<QProcess>
  11.  
  12. class HelloTest :public QWindow
  13. {
  14.     Q_OBJECT
  15.  
  16.     public:
  17.         HelloTest(QWindow *parent = 0);
  18.         ~HelloTest();
  19.     private:
  20.  
  21.  
  22.  
  23. };
  24.  
  25. #endif // HELLOTEST_H
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main.cpp
Qt Code: 
  1. #include "hellotest.h"
  2. //QX11EmbedWidget *embed;
  3. QWindow *embed;
  4. //QWidget * embed;
  5. HelloTest *hellotest;
  6.  
  7. int main(int argc, char *argv[])
  8. {
  9.     QApplication qapp(argc, argv);
  10.     QString windowId(qapp.arguments()[1]);
  11.     QVBoxLayout* layout = new QVBoxLayout;
  12.  
  13.     //embed = new QWidget;
  14.     embed = new QWindow;
  15.    // embed -> setMinimumSize(500,500);
  16.      embed -> resize(500,500);
  17.     // embed ->setIcon(QIcon("/home/Pictures/screen.png"));
  18.     //embed -> setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Expanding);
  19.  
  20.     //embed -> setPalette(QColor(255,0,0,255));
  21.  
  22.      //embed -> setAutoFillBackground(true);
  23.  
  24.     hellotest = new HelloTest(embed);
  25.     //hellotest -> setContentsMargins(0,0,0,0);
  26.  
  27.     if(NULL == embed)
  28.     {
  29.         qDebug() << "Unable to create hellotest";
  30.         return 0;
  31.     }
  32.     if(argc < 2)
  33.     {
  34.         qDebug() << "More Arguments Needed";
  35.         return 0;
  36.     }
  37.     qDebug()<<"windowId in WG:"<<windowId;
  38.  
  39.     //layout -> addWidget(hellotest);
  40.     //embed -> setLayout(layout);
  41.    // embed -> embedInto(windowId.toULong());
  42.    // embed ->fromWinId(windowId.toULong());
  43.    // embed -> setVisible(true);
  44.     embed -> show();
  45.     return qapp.exec();
  46. }
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