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On Windows systems, itk warnings are sent to a read only EDIT control. If the program is run from a shell, the warnings pop up and disappear. This example redirects the output to the shell.


#include <itkTextOutput.h>
int main(int, char*[])
  // Force output to stdout
  // On Windows systems, the output of warnings is normally sent to a
  // window and not the shell
  itkGenericOutputMacro(<< "This should appear in the console window, not in a pop up window");
  return EXIT_SUCCESS;


cmake_minimum_required(VERSION 3.9.5)
find_package(ITK REQUIRED)
if (ITKVtkGlue_LOADED)
  find_package(VTK REQUIRED)
add_executable(TextOutputWindow MACOSX_BUNDLE TextOutputWindow.cxx)
  target_link_libraries(TextOutputWindow ITKReview ${ITK_LIBRARIES})
  target_link_libraries(TextOutputWindow ${ITK_LIBRARIES})
endif( "${ITK_VERSION_MAJOR}" LESS 4 )

Download and Build TextOutputWindow

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

cd TextOutputWindow/build
  • If ITK is installed:
cmake ..
  • If ITK is not installed but compiled on your system, you will need to specify the path to your ITK build:
cmake -DITK_DIR:PATH=/home/me/itk_build ..

Build the project:


and run it:


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

Building All of the Examples

Many of the examples in the ITK Wiki Examples Collection require VTK. You can build all of the the examples by following these instructions. If you are a new VTK user, you may want to try the Superbuild which will build a proper ITK and VTK.


ITK >= 4

For examples that use QuickView (which depends on VTK), you must have built ITK with Module_ITKVtkGlue=ON.

ITK < 4

Some of the ITK Examples require VTK to display the images. If you download the entire ITK Wiki Examples Collection, the ItkVtkGlue directory will be included and configured. If you wish to just build a few examples, then you will need to download ItkVtkGlue and build it. When you run cmake it will ask you to specify the location of the ItkVtkGlue binary directory.