- this->_AddInput( "Input" );
-
- this->m_Parameters->ConfigureAsString( "FileName", "" );
+ this->_AddInput( "Input", true );
+ this->m_Parameters->ConfigureAsSaveFileName( "FileName" );
+ this->m_Parameters->SetAcceptedFileExtensions(
+ "FileName",
+ "Mesh files (*.vtk *.stl *.obj)"
+ );