CloseWindow

VTKExamples/Cxx/Visualization/CloseWindow


Code

CloseWindow.cxx

#include <vtkSmartPointer.h>

#include <vtkActor.h>
#include <vtkCallbackCommand.h>
#include <vtkCommand.h>
#include <vtkCubeSource.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>

void KeypressCallbackFunction (
  vtkObject* caller,
  long unsigned int eventId,
  void* clientData,
  void* callData );

int main(int, char *[])
{
  vtkSmartPointer<vtkCubeSource> cubeSource = 
    vtkSmartPointer<vtkCubeSource>::New();
  cubeSource->Update();

  // Create a mapper and actor
  vtkSmartPointer<vtkPolyDataMapper> mapper = 
    vtkSmartPointer<vtkPolyDataMapper>::New();
  mapper->SetInputConnection(cubeSource->GetOutputPort());

  vtkSmartPointer<vtkActor> actor = 
    vtkSmartPointer<vtkActor>::New();
  actor->SetMapper(mapper);

  // Create a renderer, render window, and interactor
  vtkSmartPointer<vtkRenderer> renderer = 
    vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renderWindow = 
    vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->AddRenderer(renderer);
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = 
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  renderWindowInteractor->SetRenderWindow(renderWindow);

  vtkSmartPointer<vtkCallbackCommand> keypressCallback = 
    vtkSmartPointer<vtkCallbackCommand>::New();
  keypressCallback->SetCallback ( KeypressCallbackFunction );
  renderWindowInteractor->AddObserver (
    vtkCommand::KeyPressEvent,
    keypressCallback );

  // Add the actor to the scene
  renderer->AddActor(actor);

  // Render and interact
  renderWindow->Render();
  renderWindow->SetWindowName("First Window");
  renderWindowInteractor->Start();

  std::cout << "Window 1 closed..." << std::endl;

  // Make another interactor, but use the same render window
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor2 = 
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  renderWindowInteractor2->AddObserver (
    vtkCommand::KeyPressEvent, keypressCallback );

  renderWindowInteractor2->SetRenderWindow(renderWindow);
  renderWindow->Render();
  renderWindow->SetWindowName("Second Window");

  renderWindowInteractor2->Start();
  std::cout << "Window 2 closed. Exiting..." << std::endl;

  return EXIT_SUCCESS;
}

void KeypressCallbackFunction (
  vtkObject* caller,
  long unsigned int vtkNotUsed(eventId),
  void* vtkNotUsed(clientData),
  void* vtkNotUsed(callData) )
{

  vtkRenderWindowInteractor *iren = 
    static_cast<vtkRenderWindowInteractor*>(caller);
  // Close the window
  iren->GetRenderWindow()->Finalize();

  // Stop the interactor
  iren->TerminateApp();
  std::cout << "Closing window..." << std::endl;
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)

PROJECT(CloseWindow)

find_package(VTK REQUIRED)
include(${VTK_USE_FILE})

add_executable(CloseWindow MACOSX_BUNDLE CloseWindow.cxx )

target_link_libraries(CloseWindow ${VTK_LIBRARIES})

Download and Build CloseWindow

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

cd CloseWindow/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:

./CloseWindow

WINDOWS USERS

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