# QImageToImageSource

VTKExamples/Cxx/Qt/QImageToImageSource

### Description

This example demonstrates the use of vtkQImageToImageSource.

See also the ImageDataToQImage example.

### Code

QImageToImageSource.cxx

    #include <QApplication>
    #include <QPixmap>

    #include <vtkSmartPointer.h>
    #include <vtkQImageToImageSource.h>

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

      QPixmap pixmap(10,10);
      QColor color(10,20,30);
      pixmap.fill(color);

      vtkSmartPointer<vtkQImageToImageSource> qimageToImageSource =
        vtkSmartPointer<vtkQImageToImageSource>::New();
      QImage qimage = pixmap.toImage();
      qimageToImageSource->SetQImage(&qimage);
      qimageToImageSource->Update();

    //  vtkImageData* image = qimageToImageSource->GetOutput();

      return EXIT_SUCCESS;
    }

### CMakeLists.txt

    cmake_minimum_required(VERSION 2.8)

    PROJECT(QImageToImageSource)

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

    add_executable(QImageToImageSource MACOSX_BUNDLE QImageToImageSource.cxx )

    target_link_libraries(QImageToImageSource ${VTK_LIBRARIES})

### Download and Build QImageToImageSource

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

    cd QImageToImageSource/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:

    ./QImageToImageSource

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.