Example C++ Code: Read XML as Data and Manually Instantiate a GenICam Feature Node Map for the Camera

GEV_DEVICE_INTERFACE pCamera[MAX_CAMERAS] = {0};

GEVLIB_CONFIG_OPTIONS options = {0};

int numCamera = 0;

int camIndex = 0;

GEV_CAMERA_HANDLE handle = NULL;

GenApi::CNodeMapRef Camera;

// Set manual XML handling mode for the library.

GevGetLibraryConfigOptions( &options);

options. manual_xml_handling = 1;

GevSetLibraryConfigOptions( &options);

// Get camera list.

GevGetCameraList( pCamera, MAX_CAMERAS, &numCamera);

// Open the camera you want

GevOpenCamera( &pCamera[camIndex], GevExclusiveMode, &handle);

// Retrieve the XML data from the camera

{

int xmlFileSize = 0;

char *pXmlData;

BOOL compressed_data = 0;

Gev_RetrieveXMLData( handle, 0, NULL, &xmlFileSize);

xmlFileSize = (xmlFileSize + 3) & (~3));

pXmlData = (char *)malloc( xmlFileSize + 1);

Gev_RetrieveXMLData( handle, xmlFileSize, pXmlData, &xmlFileSize, &compressed_data);

pXmlData[xmlFileSize ] = 0;

GenICam::gcstring xmlStr( pXmlData );

// Generate the feature node map from the XML data.

if (compressed_data)

{

Camera._LoadXMLFromZIPData(xmlStr);

}

else

{

Camera._LoadXMLFromString(xmlStr);

}

free(pXmlData);

}

// Connect the camera to the feature map

GevConnectFeatures( handle, (void *)&Camera);

< … GenApi access to features from here on via Camera object … >