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| This example demonstrates how to observe and event that is invoked by a filter.
| | {{warning|1=The media wiki content on this page is no longer maintained. The examples presented on the https://itk.org/Wiki/* pages likely require ITK version 4.13 or earlier releases. In many cases, the examples on this page no longer conform to the best practices for modern ITK versions. |
| | }} |
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| ==ObserveEvent.cxx==
| | [https://itk.org/ITKExamples[ITK Sphinx Examples]] |
| <source lang="cpp">
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| #include "itkBinaryNotImageFilter.h"
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| #include "itkCommand.h"
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| typedef itk::Image<unsigned char, 2> ImageType;
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| class MyCommand : public itk::Command
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| {
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| public:
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| itkNewMacro( MyCommand );
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| public:
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| void Execute(itk::Object *caller, const itk::EventObject & event)
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| {
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| Execute( (const itk::Object *)caller, event);
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| }
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| void Execute(const itk::Object * object, const itk::EventObject & event)
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| {
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| std::cout << "Command called." << std::endl;
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| }
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| };
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| int main(int, char*[])
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| {
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| ImageType::Pointer image = ImageType::New();
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| typedef itk::BinaryNotImageFilter <ImageType>
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| BinaryNotImageFilterType;
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| BinaryNotImageFilterType::Pointer filter = BinaryNotImageFilterType::New();
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| filter->SetInput(image);
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| MyCommand::Pointer myCommand = MyCommand::New();
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| filter->AddObserver(itk::ProgressEvent(), myCommand);
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| filter->Update();
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| return EXIT_SUCCESS;
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| }
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| </source>
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| {{ITKCMakeLists|ObserveEvent}}
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