FindosgQt — CMake 4.3.0 Documentation

# FindosgQt

Finds the osgQt utility library from the OpenSceneGraph toolkit.

Note

In most cases, it's recommended to use the `FindOpenSceneGraph` module instead and list osgQt as a component. This will automatically handle dependencies such as the OpenThreads and core osg libraries:

    find_package(OpenSceneGraph COMPONENTS osgQt)

This module is used internally by `FindOpenSceneGraph` to find the osgQt library. It is not intended to be included directly during typical use of the `find_package()` command. However, it is available as a standalone module for advanced use cases where finer control over detection is needed. For example, to find the osgQt explicitly or bypass automatic component detection:

    find_package(osgQt)

OpenSceneGraph and osgQt headers are intended to be included in C++ project source code as:

`example.cxx`

    #include <osg/PositionAttitudeTransform>
    #include <osgQt/GraphicsWindowQt>
    // ...

When working with the OpenSceneGraph toolkit, other libraries such as OpenGL may also be required.

## Result Variables

This module defines the following variables:

`osgQt_FOUND`

  Added in version 3.3.

  Boolean indicating whether the osgQt library of the OpenSceneGraph toolkit was found.

`OSGQT_LIBRARIES`

  The libraries needed to link against to use osgQt.

`OSGQT_LIBRARY`

  A result variable that is set to the same value as the `OSGQT_LIBRARIES` variable.

## Cache Variables

The following cache variables may also be set:

`OSGQT_INCLUDE_DIR`

  The include directory containing headers needed to use osgQt.

`OSGQT_LIBRARY_DEBUG`

  The path to the osgQt debug library.

## Hints

This module accepts the following variables:

`OSGDIR`

  Environment variable that can be set to help locate the OpenSceneGraph toolkit, including its osgQt library, when installed in a custom location. It should point to the OpenSceneGraph installation prefix used when it was configured, built, and installed: `./configure --prefix=$OSGDIR`.

## Deprecated Variables

The following variables are provided for backward compatibility:

`OSGQT_FOUND`

  Deprecated since version 4.2: Use `osgQt_FOUND`, which has the same value.

  Boolean indicating whether the osgQt library of the OpenSceneGraph toolkit was found.

## Examples

Finding osgQt explicitly with this module and creating an interface imported target that encapsulates its usage requirements for linking it to a project target:

    find_package(osgQt)

    if(osgQt_FOUND AND NOT TARGET osgQt::osgQt)
      add_library(osgQt::osgQt INTERFACE IMPORTED)
      set_target_properties(
        osgQt::osgQt
        PROPERTIES
          INTERFACE_INCLUDE_DIRECTORIES "${OSGQT_INCLUDE_DIR}"
          INTERFACE_LINK_LIBRARIES "${OSGQT_LIBRARIES}"
      )
    endif()

    target_link_libraries(example PRIVATE osgQt::osgQt)

## See Also

- The `FindOpenSceneGraph` module to find OpenSceneGraph toolkit.