288 lines
12 KiB
C++
288 lines
12 KiB
C++
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/*=============================================================================
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Copyright (C) 2014 Allied Vision Technologies. All Rights Reserved.
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Redistribution of this file, in original or modified form, without
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prior written consent of Allied Vision Technologies is prohibited.
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-------------------------------------------------------------------------------
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File: EventHandling.cpp
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Description: The EventHandling example will register observer on all
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'EventData' features and turn on camera notification for
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'AcquisitionStart' events.
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-------------------------------------------------------------------------------
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF TITLE,
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NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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=============================================================================*/
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#include <sstream>
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#include <iostream>
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#include <vector>
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#include <algorithm>
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#include <EventHandling.h>
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#include <EventObserver.h>
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#include "Common/StreamSystemInfo.h"
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#include "Common/ErrorCodeToMessage.h"
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namespace AVT {
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namespace VmbAPI {
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namespace Examples {
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// Purpose: Example execution.
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//
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// Parameter:
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// [in ] std::string cameraID Use camera with this ID for the example.
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void EventHandling::RunExample( std::string cameraID )
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{
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VimbaSystem& sys = VimbaSystem::GetInstance(); // Get a reference to the VimbaSystem singleton
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std::cout << "Vimba C++ API Version " << sys << "\n\n"; // Print out version of Vimba
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VmbErrorType err = sys.Startup(); // Initialize the Vimba API
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CameraPtr pCamera = CameraPtr(); // Our camera
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if( VmbErrorSuccess == err )
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{
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if( cameraID.empty() ) // If no ID was provided use the first camera
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{
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CameraPtrVector cameras;
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err = sys.GetCameras( cameras );
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if( VmbErrorSuccess == err
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&& !cameras.empty() )
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{
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err = cameras[0]->Open( VmbAccessModeFull ); // Open the camera
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if( VmbErrorSuccess == err )
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{
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pCamera = cameras[0];
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err = pCamera->GetID( cameraID );
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}
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}
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}
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else
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{
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err = sys.OpenCameraByID( cameraID.c_str(), VmbAccessModeFull, pCamera ); // Open the camera
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}
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if( NULL != pCamera )
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{
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VmbInterfaceType interfaceType;
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pCamera->GetInterfaceType( interfaceType );
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if( VmbErrorSuccess == err )
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{
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switch ( interfaceType )
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{
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case VmbInterfaceEthernet:
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{
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if( VmbErrorSuccess == err )
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{
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err = DeactivateAllCameraNotifications( pCamera );
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if( VmbErrorSuccess == err )
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{
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err = ActivateNotification( pCamera, "AcquisitionStart" );
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if( VmbErrorSuccess == err )
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{
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err = RegisterEventObserver( pCamera );
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if( VmbErrorSuccess == err )
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{
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std::cout << "Acquire image to trigger event.\n";
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std::cout << "\n----------- Events -----------\n\n";
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FramePtr pFrame;
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VmbInt32_t exampleTimeoutValue = 2000;
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pCamera->AcquireSingleImage( pFrame, exampleTimeoutValue ); // Trigger the event
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}
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}
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}
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}
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break;
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}
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default:
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std::cout << "Interface type of camera not supported by this example.: " << cameraID << "\n";
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}
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}
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else
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{
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std::cout << "Could not get interface type. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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pCamera->Close();
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}
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else
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{
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std::cout << "Could not open camera or no camera available. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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sys.Shutdown();
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}
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else
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{
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std::cout << "Could not start system. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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}
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// Purpose: Deactivate all camera notification.
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//
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// Parameter:
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// [in ] CameraPtr pCamera Intern camera object.
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//
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// Returns:
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// VmbErrorSuccess in case of success otherwise an error code
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VmbErrorType EventHandling::DeactivateAllCameraNotifications( CameraPtr pCamera )
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{
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std::cout << "Deactivate notifications.\n";
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FeaturePtr pFeatureEventSelector;
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VmbErrorType err = pCamera->GetFeatureByName( "EventSelector", pFeatureEventSelector );
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if( VmbErrorSuccess == err )
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{
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EnumEntryVector eventSelectorEntrys;
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err = pFeatureEventSelector->GetEntries( eventSelectorEntrys );
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if( VmbErrorSuccess == err )
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{
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FeaturePtr pFeatureEnumEntry;
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for( size_t i = 0; i < eventSelectorEntrys.size(); i++ )
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{
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std::string entryValue = "";
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err = eventSelectorEntrys[i].GetName( entryValue );
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if( VmbErrorSuccess == err )
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{
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bool isCurrentEntryAvailable = false;
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err = pFeatureEventSelector->IsValueAvailable( entryValue.c_str(), isCurrentEntryAvailable );
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if ( VmbErrorSuccess == err )
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{
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if ( isCurrentEntryAvailable )
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{
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err = pFeatureEventSelector->SetValue( entryValue.c_str() );
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if( VmbErrorSuccess == err )
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{
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err = pCamera->GetFeatureByName( "EventNotification", pFeatureEnumEntry );
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if( VmbErrorSuccess == err )
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{
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err = pFeatureEnumEntry->SetValue( "Off" );
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if( VmbErrorSuccess != err )
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{
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std::cout << "Could not set notification 'Off'. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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}
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else
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{
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std::cout << "Could not get feature 'EventNotification'. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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}
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else
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{
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std::cout << "Could not set 'EventSelector' value to '" << entryValue << "'. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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}
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}
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else
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{
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std::cout << "Could not check if entry is currently available. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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}
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else
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{
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std::cout << "Could not get entry value. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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}
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}
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else
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{
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std::cout << "Could not get 'EventSelector' entry's. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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}
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else
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{
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std::cout << "Could not get feature 'EventSelector'. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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return err;
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}
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// Purpose: Create for each 'Camera->EventData' feature an observer and register it.
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//
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// Parameter:
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// [in ] CameraPtr pCamera Intern camera object.
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//
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// Returns:
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// VmbErrorSuccess in case of success otherwise an error code
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VmbErrorType EventHandling::RegisterEventObserver( CameraPtr pCamera )
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{
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FeaturePtrVector features;
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VmbErrorType err = pCamera->GetFeatures( features );
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if( VmbErrorSuccess == err )
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{
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for( size_t i = 0; i < features.size(); i++ )
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{
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std::string category;
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err = features[i]->GetCategory( category );
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if( 0 == category.compare( "/EventControl/EventData" ) && VmbErrorSuccess == err )
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{
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IFeatureObserverPtr pObserver;
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SP_SET( pObserver, new EventObserver( pCamera ) );
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err = features[i]->RegisterObserver( pObserver );
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if( VmbErrorSuccess != err )
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{
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std::cout << "Could not register observer. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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}
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}
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}
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else
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{
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std::cout << "Could not get features. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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return err;
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}
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// Purpose: Activate camera notification.
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//
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// Parameter:
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// [in ] CameraPtr pCamera Intern camera object.
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// [in ] std::string eventName Name of event to activate.
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//
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// Returns:
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// VmbErrorSuccess in case of success otherwise an error code
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VmbErrorType EventHandling::ActivateNotification( CameraPtr pCamera, std::string eventName )
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{
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std::cout << "Activate notification for '" << eventName << "' events.\n";
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FeaturePtr feature;
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VmbErrorType err = pCamera->GetFeatureByName( "EventSelector", feature );
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if( VmbErrorSuccess == err )
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{
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err = feature->SetValue( eventName.c_str() );
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if( VmbErrorSuccess == err )
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{
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err = pCamera->GetFeatureByName( "EventNotification", feature );
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if( VmbErrorSuccess == err )
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{
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err = feature->SetValue( "On" );
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if( VmbErrorSuccess != err )
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{
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std::cout << "Could not set notification 'On'. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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}
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else
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{
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std::cout << "Could not get feature 'EventNotification'. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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}
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else
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{
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std::cout << "Could not get selector '" << eventName << "'. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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}
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else
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{
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std::cout << "Could not get feature 'EventSelector'. Error code: " << err << " (" << AVT::VmbAPI::Examples::ErrorCodeToMessage( err ) << ")" << "\n";
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}
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return err;
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}
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}}} // namespace AVT::VmbAPI::Examples
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