Instruction manual

Chapter 6. Samples

6.1. Programming example

This small programming example shows how to use the basic API functions to setup the grabber

hardware for getting a snap shot from the camera into memory.

The import library eleye716.lib (compiler dependent) has to be specified in your development tool.

#include "elpceye7.h"

#define IMAGE_WIDTH 560

#define IMAGE_HEIGHT 480

int main(int argc, char* argv[])

{

long Err, nRet = 0;

long wBoardID;

long wBufID;

void ** ppVideoMemory;

// open the grabber

wBoardID = el_OpenHW(0, 1);

if( wBoardID < 0)

{

printf( "Errorcode:%d\n", el_GetErrorCode() );

return false;

}

// initialize with default values

nRet = el_InitContext(wBoardID, NULL);

if( nRet != 0)

{

printf( "Errorcode:%d\n", el_GetErrorCode() );

return false;

}

wBufID = 0;

// initialize HW and allocate memory for the image

ppVideoMemory = el_InitHW(wBoardID, NULL, IMAGE_WIDTH, IMAGE_HEIGHT, 1, 0,

&wBufID);

if ( !ppVideoMemory )

{

printf( "Errorcode:%d\n", el_GetErrorCode() );

return false;

}

. setup the display

// aquire one snap shot

nRet = el_Acquire(wBoardID, EL_SNAP);

if( nRet != 0)

{

printf( "Errorcode:%d\n", el_GetErrorCode() );

return false;