After qt designer is started, the cause and solution of the interface problems are not displayed. qtdesigner
Qt 5.6.1it does not mean that the interface still cannot be displayed when the double-hitting uifile is directly started in vs2. however, the task manager can see that the process exists. A few days ago, it was still normal, but yesterday I added a NVIDIA graphics card (with a kernel), which may be related to this. Fortunately, you can use QtCreator to open the ui file and edit it.
The corresponding Qt bug is found, but it is still in the enabled status... Address: https://bugreports.qt.io/browse/QTBUG-53984
According to the bug description, the 64-bit win10 system and dual-graphics card are used. When the designer is started, Qt5WebEngineWidgets. dll gets stuck, and the designer does not display the interface.
The cause is as follows:
1. Use QtCreator instead
2. Rename Qt5WebEngineWidgets. dll.
3. Replace Qt with 5.6.0
4. the NVIDIA graphics card is not used for encoding (theoretically feasible, not tested)
5. versions after fixing bugs
6. Find the problematic code and modify and compile it by yourself.
Select one of the above solutions. I chose solution 1, which is not commonly used as a designer anyway. When solution 5 or later needs to customize the Qt code, I easily changed the problem (Solution 6 ). There should be no other feasible solutions. If so, please reply. Thank you!