QT widget promoted to QWidget

1. First create a common belt ui window

 

 

2. Once I've created it Add a designer interface class

 

 3. Select the type to be promoted here With widget For example

 4. Be careful Class name here by Form

5. Double-click to open mainwindow.ui

 

6. stay ui Interface add widget Control

 

7. Choose widget, Right click to select promote to

 8. Add promoted classes , The name of the promotion class needs and Class name 1 in the program （ Include case ）

    

 9. Select the previously added class Select promotion  

 

10. Adding form.ui Any operation in

  The metropolis program is directly added to mainwindow windowing output

 11. Compilation result The window displays stay mainwindow、form Button in

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