# ShowEventDriver

VTKExamples/Cxx/Qt/ShowEventDriver

### Description

Small example (not doing anything actually) to show the use of the overwritten QWidget::showEvent() function to initialize the VTK widget when it is actually used, not directly in the constructor.

### Code

ShowEventDriver.cxx

    #include <QApplication>

    #include "ShowEvent.h"

    int main(int argc, char *argv[])
    {
      QApplication app(argc, argv);
      ShowEvent showEvent;

      showEvent.show();
      return app.exec();
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 2.8)

    PROJECT(ShowEventDriver)

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

    add_executable(ShowEventDriver MACOSX_BUNDLE ShowEventDriver.cxx)

    target_link_libraries(ShowEventDriver ${VTK_LIBRARIES})

### Download and Build ShowEventDriver

Danger

The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.

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

    cd ShowEventDriver/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:

    ./ShowEventDriver

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