Mixed MFC and QT programming-use QT components in the MFC Program

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Mixed MFC and QT programming-use QT components in the MFC Program

1. Create a simpleMFC DialogProgram.

2. InBool ctestapp: initinstance ()Add to function
Qmfcapp: instance (this );

Tracking qmfcapp
The function of the static function is to create a qapplication.
Instance.

 3.
 Override the run method of ctestapp.

As follows:

int CTestApp::Run() {       int result = QMfcApp::run(this);    delete qApp;    return result;}

I am not sure what it means.

Qt help:

QMfcApp:run() will then use that QMfcApp::instance, which must then be deleted explicitly using the global qApp pointer.

I have no idea what it means.

4.
 In the testdlg. h file, define qwinwidget * widget; 5.
 Then it's easy.

Add widget = new qwinwidget (this) to the oncreate function of ctestdialog );

QHBoxLayout *hbox = new QHBoxLayout( widget );

Qlabel * label = new qlabel ("Enter text:", widget); qlineedit * edit = new qlineedit (widget); hbox-> addwidget (Label ); hbox-> addwidget (edit); widget-> move (0, 0); widget-> show ();6.
 InCtestdialogOfOndestroyMethod:

Delete widget;

Widget = 0;

7. InQmake-ProjectGenerated. ProFile:

Defines-= Unicode

Defines + = _ afxdll winver = 0x0500

Include (../src/qtwinmigrate. PRI)

Otherwise, it cannot be compiled.

8. Qmake nmakeRun