使用VSCode进行Qt开发

变量名：QTDIR变量值：C:\Qt\5.15.2\msvc2019_64（请根据实际安装路径进行修改）

#========================================== NOTICE BEGIN ==========================================
#FOR QT DEPENDENCY MODULES,
#1. you should define QT_DIR in parent CMakeLists.txt or you should set environment value QTDIR, which pointer to Qt's directory
#2. DEPENDENCY_QT_MODULES as an INPUT variable, you should set DEPENDENCY_QT_MODULES in parent CMakeLists.txt BEFORE include this file, which is a list of Qt's librarys you needed in your project, such as Widgets, Core, Gui, etc.
#3. LINK_LIBS as an OUTPUT variable, you should link librarys with the vaiable ${LINK_LIBS} in your parent CMakeLists.txt AFTER include this file.
#========================================== NOTICE END ==========================================
#check Qt's path
if(NOT EXISTS "${QT_DIR}")
#try to use env
set(CMAKE_PREFIX_PATH "$ENV{QTDIR}")
message(STATUS "using QT_DIR from env: ${CMAKE_PREFIX_PATH}")
else()
set(CMAKE_PREFIX_PATH "${QT_DIR}")
endif()
if(NOT EXISTS "${CMAKE_PREFIX_PATH}")
message(FATAL_ERROR "Qt's directory is invalid! ${CMAKE_PREFIX_PATH}")
endif()
#check Qt version
set(QT_VERSION_PREFIX Qt5)
find_package(Qt6 COMPONENTS Widgets)
if(${Qt6Widgets_FOUND})
set(QT_VERSION_PREFIX Qt6)
endif()
message(STATUS "QT_VERSION_PREFIX = ${QT_VERSION_PREFIX}")
# Find includes in corresponding build directories
set(CMAKE_INCLUDE_CURRENT_DIR ON)
# Instruct CMake to run moc automatically when needed.
set(CMAKE_AUTOMOC ON )
set(CMAKE_AUTOUIC ON )
set(CMAKE_AUTORCC ON )
if(ENABLE_MESSAGELOGCONTEXT)
set(QT_MESSAGELOGCONTEXT TRUE)
add_definitions(-DQT_MESSAGELOGCONTEXT)
endif(ENABLE_MESSAGELOGCONTEXT)
foreach(QT_MODULE_NAME ${DEPENDENCY_QT_MODULES})
# Find the QtWidgets library
find_package(${QT_VERSION_PREFIX}${QT_MODULE_NAME} REQUIRED)
# Add the include directories for the Qt 6 Widgets module to
# the compile lines.
include_directories(${${QT_VERSION_PREFIX}${QT_MODULE_NAME}_INCLUDE_DIRS})
# Use the compile definitions defined in the Qt 6 Widgets module
add_definitions(${${QT_VERSION_PREFIX}${QT_MODULE_NAME}_DEFINITIONS})
# Add compiler flags for building executables (-fPIE)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${${QT_VERSION_PREFIX}${QT_MODULE_NAME}_EXECUTABLE_COMPILE_FLAGS}")
# add library
if (DEFINED ${QT_VERSION_PREFIX}::${QT_MODULE_NAME})
list(APPEND LINK_LIBS ${QT_VERSION_PREFIX}::${QT_MODULE_NAME})
endif()
endforeach(QT_MODULE_NAME ${DEPENDENCY_QT_MODULES})

set(DEPENDENCY_QT_MODULES Widgets Core Gui)
include(DEPENDENCY_QT_MODULES.cmake)
target_link_libraries(test_qt_cmake PRIVATE ${LINK_LIBS})