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

Boolean indicating whether the osgQt library of the OpenSceneGraph toolkit is found. For backward compatibility, the OSGQT_FOUND variable is also set to the same value.

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.

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