VersionMacros

VTKExamples/Cxx/Utilities/VersionMacros

Question

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Code

VersionMacros.cxx

#include <vtkPolyData.h>
#include <vtkVersion.h> // NOTE: without this include, the VTK_[]_VERSION are not defined!

// These functions allow you to output the version defines at compile time
#define STR(x) STR2(x)
#define STR2(x) #x

int main(int, char *[])
{
  #if VTK_MAJOR_VERSION>5 || (VTK_MAJOR_VERSION==5 && VTK_MINOR_VERSION>4)
    #pragma message(STR(VTK_MAJOR_VERSION))
  #endif

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(VersionMacros)

find_package(VTK COMPONENTS 
  vtkCommonCore
  vtkCommonDataModel QUIET)
if (NOT VTK_FOUND)
  message("Skipping VersionMacros: ${VTK_NOT_FOUND_MESSAGE}")
  return ()
endif()
message (STATUS "VTK_VERSION: ${VTK_VERSION}")
if (VTK_VERSION VERSION_LESS "8.90.0")
  # old system
  include(${VTK_USE_FILE})
  add_executable(VersionMacros MACOSX_BUNDLE VersionMacros.cxx )
  target_link_libraries(VersionMacros PRIVATE ${VTK_LIBRARIES})
else ()
  # include all components
  add_executable(VersionMacros MACOSX_BUNDLE VersionMacros.cxx )
  target_link_libraries(VersionMacros PRIVATE ${VTK_LIBRARIES})
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS VersionMacros
    MODULES ${VTK_LIBRARIES}
    )
endif ()

Download and Build VersionMacros

Click here to download VersionMacros and its CMakeLists.txt file. Once the tarball VersionMacros.tar has been downloaded and extracted,

cd VersionMacros/build

If VTK is installed:

cmake ..

If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:

cmake -DVTK_DIR:PATH=/home/me/vtk_build ..

Build the project:

make

and run it:

./VersionMacros

WINDOWS USERS

Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.