QMainWindow to display X Window

[augusbas]

Hi all,

I have developed a Qt application, with QMainWindow as main Object. Inside the same Qt application there is a X Window instructions to create a X Window. Code got compiled successfully . Both my Qt window and X window will display separately.Please refer the PNG attachment. I need the X Window to be displayed on QMainWindow. Somebody please guide.

I got below errors when i am trying to integrate X and Qt

X Error: BadWindow (invalid Window parameter) 3
Major opcode: 3 (X_GetWindowAttributes)
Resource id: 0x0
Error: Couldn't find per display information

I have attached the code of main.cpp for reference

[augusbas]

Some body who can help me ...

[Lykurg]

And how should we help you, without seeing any code of your application? Please provide a minimal compilable example, reproducing your problem.

[augusbas]

And how should we help you, without seeing any code of your application? Please provide a minimal compilable example, reproducing your problem.

Hi Lkyurg,

Hi, I have attached my code for your review in my thread. Have you seen that?

For reference i have attached my code again. Any inputs required i am ready to provide

#include <QApplication>
#include <QX11EmbedWidget>
#include <QWidget>
#include <QX11Info>
#include <QPaintDevice>
#include <QGraphicsView>
#include <QMainWindow>
 
/* Standard headers. */
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
 
/* X headers. */
#include <X11/StringDefs.h>
#include <X11/Intrinsic.h>
#include <X11/Core.h>
#include <X11/Xaw/Box.h>
#include <X11/Xaw/Command.h>
#include <X11/Xaw/Form.h>
#include <X11/Xaw/AsciiText.h>
#include <X11/Xaw/Toggle.h>
#include <X11/Shell.h>
 
/* SPx headers. */
#include "SPx.h"
 
/*Class header */
#include "Radar.h"             // Class for creating  QMainWindow 
 
static int UpdateTimerMsecs = 50;
 
#define START_VIEW_X  0
#define START_VIEW_Y	 0
#define START_VIEW_W 200000
#define START_VIEW_H	 200000
 
static void sigIntHandler(int sig)
{
    printf("SIGINT received - exiting application.\n");
    exit(EXIT_SUCCESS);
} 
 
int main(int argc, char *argv[])
 {
        QApplication app(argc, argv);
 
          Display *XDisplay = 0;
     	  int c;
	  Radar *TopLevel= new Radar;
          Window win= TopLevel->winId();
 
          qDebug("Window ID of win is %x",win);
 
          //QGraphicsView *TopLevel;
    	  //QWidget *TopLevel= new QWidget;
          //QPaintDevice *TopLevel;
 
   	 Display *display=TopLevel->x11Info().display();
         //Display *display=QX11Info::display();
	 SPxScDestDisplayX11 *scDestX11;
	 SPxScSourceLocal *ScanConverter = NULL;
 
	 double Vx = START_VIEW_X;
	 double Vy = START_VIEW_Y;
	 double Vw = START_VIEW_W;
	 double Vh = START_VIEW_H;
    	 signal(SIGINT, sigIntHandler);
 
    	if( SPxInit() != SPX_NO_ERROR )
    	{
		printf("Failed to initialise SPx.\n");
		exit(-1);
    	}
 
       XDisplay = display;                                              //x11Info().
	qDebug("X Display %x",XDisplay);
 
 
	scDestX11 = new SPxScDestDisplayX11();
    	scDestX11->UseDisplay(TopLevel->x11Info().display());
    	scDestX11->Create(0, 1600, 1200, 0, 0, 0);
    	scDestX11->SetUpdateInterval(UpdateTimerMsecs);
	SPxRIB *rib  = new SPxRIB(1024 * 1024, NULL);
	SPxPIM *pim = new SPxPIM(rib, 2048, 2048, SPX_PIM_RAN_PEAK, SPX_PIM_AZI_PEAK, SPX_PIM_OUTPUT(1));
 
        ScanConverter = new SPxScSourceLocal(scDestX11);
	ScanConverter->SetWinGeom(10,10,500,500);
        ScanConverter->ShowRadar(0,1);
	ScanConverter->SetFade(SPX_RADAR_FADE_REAL_TIME,200);
        new SPxRunProcess(SPxProScanConv, NULL, pim, ScanConverter);
 
        SPxScFollowX11 *WinFollow = new SPxScFollowX11(ScanConverter,TopLevel->x11Info().display(),win,0);      //Having doubts over this 
 
 
	WinFollow->AddSC(ScanConverter);
 
        WinFollow->CheckUnderTimer(250);
 
       SPxTestGenerator *testGen = new SPxTestGenerator(rib, 2048, 2.0,1000,33, 0);
 
        testGen->Enable(TRUE);
 
 
     TopLevel->show();
     return app.exec();
 }

#include <QApplication>
#include <QX11EmbedWidget>
#include <QWidget>
#include <QX11Info>
#include <QPaintDevice>
#include <QGraphicsView>
#include <QMainWindow>

/* Standard headers. */
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>

/* X headers. */
#include <X11/StringDefs.h>
#include <X11/Intrinsic.h>
#include <X11/Core.h>
#include <X11/Xaw/Box.h>
#include <X11/Xaw/Command.h>
#include <X11/Xaw/Form.h>
#include <X11/Xaw/AsciiText.h>
#include <X11/Xaw/Toggle.h>
#include <X11/Shell.h>

/* SPx headers. */
#include "SPx.h"

/*Class header */
#include "Radar.h"             // Class for creating  QMainWindow 

static int UpdateTimerMsecs = 50;

#define START_VIEW_X  0
#define START_VIEW_Y	 0
#define START_VIEW_W 200000
#define START_VIEW_H	 200000

static void sigIntHandler(int sig)
{
    printf("SIGINT received - exiting application.\n");
    exit(EXIT_SUCCESS);
} 

int main(int argc, char *argv[])
 {
        QApplication app(argc, argv);

          Display *XDisplay = 0;
     	  int c;
	  Radar *TopLevel= new Radar;
          Window win= TopLevel->winId();

          qDebug("Window ID of win is %x",win);

          //QGraphicsView *TopLevel;
    	  //QWidget *TopLevel= new QWidget;
          //QPaintDevice *TopLevel;
    	
   	 Display *display=TopLevel->x11Info().display();
         //Display *display=QX11Info::display();
	 SPxScDestDisplayX11 *scDestX11;
	 SPxScSourceLocal *ScanConverter = NULL;
	
	 double Vx = START_VIEW_X;
	 double Vy = START_VIEW_Y;
	 double Vw = START_VIEW_W;
	 double Vh = START_VIEW_H;
    	 signal(SIGINT, sigIntHandler);
   
    	if( SPxInit() != SPX_NO_ERROR )
    	{
		printf("Failed to initialise SPx.\n");
		exit(-1);
    	}

       XDisplay = display;                                              //x11Info().
	qDebug("X Display %x",XDisplay);
 

	scDestX11 = new SPxScDestDisplayX11();
    	scDestX11->UseDisplay(TopLevel->x11Info().display());
    	scDestX11->Create(0, 1600, 1200, 0, 0, 0);
    	scDestX11->SetUpdateInterval(UpdateTimerMsecs);
	SPxRIB *rib  = new SPxRIB(1024 * 1024, NULL);
	SPxPIM *pim = new SPxPIM(rib, 2048, 2048, SPX_PIM_RAN_PEAK, SPX_PIM_AZI_PEAK, SPX_PIM_OUTPUT(1));

        ScanConverter = new SPxScSourceLocal(scDestX11);
	ScanConverter->SetWinGeom(10,10,500,500);
        ScanConverter->ShowRadar(0,1);
	ScanConverter->SetFade(SPX_RADAR_FADE_REAL_TIME,200);
        new SPxRunProcess(SPxProScanConv, NULL, pim, ScanConverter);
        
        SPxScFollowX11 *WinFollow = new SPxScFollowX11(ScanConverter,TopLevel->x11Info().display(),win,0);      //Having doubts over this 
	
   
	WinFollow->AddSC(ScanConverter);
   
        WinFollow->CheckUnderTimer(250);

       SPxTestGenerator *testGen = new SPxTestGenerator(rib, 2048, 2.0,1000,33, 0);

        testGen->Enable(TRUE);
    

     TopLevel->show();
     return app.exec();
 }

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[Lykurg]

True, I missed that there is a file attachment under the image. Sorry.

In your code I can't figure out, where you set the X window in your TopLevel (QMainWindow) object (in a layout or similar). Also I can't see where you use QX11EmbedWidget.

[augusbas]

True, I missed that there is a file attachment under the image. Sorry.

In your code I can't figure out, where you set the X window in your TopLevel (QMainWindow) object (in a layout or similar). Also I can't see where you use QX11EmbedWidget.

Hi,

Thanks for your reply .

Completely new on integrating X with Qt. I didn't use QX11EmbedWidget? in my code . No idea of exactly how to use it in this case.

In my code there are 3rd party libraries are used for X window creation.

if You see the below code, it creates Window and use the display id ,given by me.

SPxScDestDisplayX11 *scDestX11;
       scDestX11 = new SPxScDestDisplayX11();
    	scDestX11->UseDisplay(TopLevel->x11Info().display());    // I am using QWindow as a display input ,Not sure whether its right
    	scDestX11->Create(0, 1600, 1200, 0, 0, 0);

SPxScDestDisplayX11 *scDestX11;
       scDestX11 = new SPxScDestDisplayX11();
    	scDestX11->UseDisplay(TopLevel->x11Info().display());    // I am using QWindow as a display input ,Not sure whether its right
    	scDestX11->Create(0, 1600, 1200, 0, 0, 0);

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Below code is for giving the display details of Qt in it

SPxScFollowX11 *WinFollow = new SPxScFollowX11(ScanConverter,TopLevel->x11Info().display(),win,0);  //   win is my Window id if you see the attached file

SPxScFollowX11 *WinFollow = new SPxScFollowX11(ScanConverter,TopLevel->x11Info().display(),win,0);  //   win is my Window id if you see the attached file

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.

If you want i can sent across the GTK code used by them for the same what i am trying to do with QT.

Advise me.