error:invalid use of undefined type 'struct QWorkspace'

hi,

idk if somebody has tried this before, but I had first time opportunity to use Qworkspace API in my program and the compiler is throwing out this puzzling error each time::
error:invalid use of undefined type 'struct QWorkspace'

I've included the required QWorkspace header file properly in my header file, but still I'm getting this error, code snippets are as follows:
Header file snippet is::

Code:

---

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QMainWindow>
 
class QWorkspace;
 
class MainWindow : public QMainWindow
{
	Q_OBJECT
public:
	MainWindow();
private:
	QWorkspace *workspace;
 
};
#endif

---

CPP file snippet is ::

Code:

---

#include <QtGui>
 
#include "test.h"
 
MainWindow::MainWindow()
{
	workspace = new QWorkspace;
	setCentralWidget(workspace);
 
                /*some stupid code of application*/
 
}

---

is there anything I'm missing out in that?



Thanks

Are you sure this is exactly the same code you were compiling? It's just that I can't see anything syntactically wrong and the includes sure are sufficient...

The following code which is infact the above classes put in a single file compiles and executes just fine on my system.

Code:

---

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QMainWindow>
 
class QWorkspace;
 
class MainWindow : public QMainWindow
{
    Q_OBJECT
public:
    MainWindow();
private:
    QWorkspace *workspace;
 
};
#endif 
 
 
#include <QtGui>
 
MainWindow::MainWindow()
{
    workspace = new QWorkspace;
    setCentralWidget(workspace);
 
                /*some stupid code of application*/
 
} 
 
int main(int argc, char **argv)
{
	QApplication app(argc, argv);
	MainWindow mw;
	mw.show();
	return app.exec();
}
 
#include "main.moc"

---

Thanks jpn and momesana for your quick and helpful replies.
Actually it worked out later on, i don't know what was the problem initially when I was compiling it, but it got compiled well, after giving it second shot.
I guess may be there was linking libraries problem with the Makefile I created on my own >:<

Thanks and Regards

Quote:

---

Originally Posted by LiCodeX

I guess may be there was linking libraries problem with the Makefile I created on my own

---

Wow, does somebody still write makefiles by hand these days. Why not use qmake which would do it for you? :)

Quote:

---

Originally Posted by jpn

Wow, does somebody still write makefiles by hand these days. Why not use qmake which would do it for you? :)

---

:o yeah it was unnecessary futile attempt to get it done on my own.
sometimes getting word done by easy utility bothers me a bit :p


Thanks