qt_import_plugins

概要

qt_import_plugins(target
                  [INCLUDE plugin ...]
                  [EXCLUDE plugin ...]
                  [INCLUDE_BY_TYPE plugin_type plugin ...]
                  [EXCLUDE_BY_TYPE plugin_type])

描述

Specifies a custom set of plugins to import. The optional arguments: INCLUDE , EXCLUDE , INCLUDE_BY_TYPE ，和 EXCLUDE_BY_TYPE , can be used more than once.

This CMake command was introduced in Qt 5.14.

INCLUDE -- can be used to specify a list of plugins to import.
EXCLUDE -- can be used to specify a list of plugins to exclude.
INCLUDE_BY_TYPE -- can be used to override the list of plugins to import for a certain plugin type.
EXCLUDE_BY_TYPE -- can be used to specify a plugin type to exclude; then no plugins of that type are imported.

Qt 提供插件类型，譬如 imageformats , platforms ，和 sqldrivers .

If the command isn't used the target automatically links against a sane set of default plugins, for each Qt module that the target is linked against. For more information, see target_link_libraries .

Each plugin comes with a C++ stub file that automatically initializes the plugin. Consequently, any target that links against a plugin has this C++ file added to its SOURCES .

注意： This command imports plugins from static Qt builds only. On shared builds, it does nothing.

该命令在 Qt 5.15 引入。可以使用 qt5_import_plugins 在旧版 Qt。

范例

add_executable(myapp main.cpp)
target_link_libraries(myapp Qt5::Gui Qt5::Sql)
qt_import_plugins(myapp
    INCLUDE Qt5::QCocoaIntegrationPlugin
    EXCLUDE Qt5::QMinimalIntegrationPlugin
    INCLUDE_BY_TYPE imageformats Qt5::QGifPlugin Qt5::QJpegPlugin
    EXCLUDE_BY_TYPE sqldrivers
)

In the snippet above, the following occurs with the executable myapp :

The Qt5::QCocoaIntegrationPlugin is imported into myapp.
The Qt5::QMinimalIntegrationPlugin plugin is excluded from being automatically imported into myapp.
The default list of plugins for imageformats is overridden to only include Qt5::QGifPlugin and Qt5::QJpegPlugin.
所有 sqldrivers plugins are excluded from automatic importing.