Qt如何在控制台项目中使用opencv打开视频

Qt如何在控制台项目中使用opencv打开视频？
重要代码：
1、在pro文件中这样设置：
QT -= gui
QT += core widgets serialport
2、不要继承和使用：QCoreApplication
#include

pro文件：

```cpp
QT -= gui
QT += core widgets serialport

CONFIG += c++11 console
CONFIG -= app_bundle

# The following define makes your compiler emit warnings if you use
# any Qt feature that has been marked deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
        main.cpp

win32{
   
   
    INCLUDEPATH += D:/opencv4.1.2/build/install/include/ \
                   C:/Boost/include/boost-1_70/

    LIBS += D:/opencv4.1.2/build/install/x86/mingw/bin/libopencv_*.dll \
            C:/Boost/lib/libboost_*-mgw53-mt-d-x32-1_70.a
}
# Default rules for deployment.
qnx: target.path = /tmp/$${
   
   TARGET}/bin
else: unix:!android: target.path = /opt/$${
   
   TARGET}