Machine Vision Camera SDK (C) Developer Guide
#include "MvCameraControl.h"
void main()
{
int nRet = -1;
void* m_handle = NULL;
//Enumerate all devices corresponding to specified transport protocol
within subnet
unsigned int nTLayerType = MV_GIGE_DEVICE | MV_USB_DEVICE;
MV_CC_DEVICE_INFO_LIST m_stDevList = {0};
int nRet = MV_CC_EnumDevices(nTLayerType, &m_stDevList);
if (MV_OK != nRet)
{
printf("error: EnumDevices fail [%x]\n", nRet);
return;
}
int i = 0;
if (m_stDevList.nDeviceNum == 0)
{
printf("no camera found!\n");
return;
}
//Select the first found online device and create device handle
int nDeviceIndex = 0;
MV_CC_DEVICE_INFO m_stDevInfo = {0};
memcpy(&m_stDevInfo, m_stDevList.pDeviceInfo[nDeviceIndex],
sizeof(MV_CC_DEVICE_INFO));
nRet = MV_CC_CreateHandle(&m_handle, &m_stDevInfo);
if (MV_OK != nRet)
{
printf("error: CreateHandle fail [%x]\n", nRet);
return;
}
//Connect device
unsigned int nAccessMode = MV_ACCESS_Exclusive;
unsigned short nSwitchoverKey = 0;
nRet = MV_CC_OpenDevice(m_handle, nAccessMode, nSwitchoverKey);
if (MV_OK != nRet)
{
printf("error: OpenDevice fail [%x]\n", nRet);
return;
}
//...other processing
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