public int Camera_GetCount()
{
IVS_INDEX_RANGE pIndexRange = new IVS_INDEX_RANGE();
pIndexRange.uiFromIndex = 1;
pIndexRange.uiToIndex = 1;
int iCameraCount = 0;
try
{
long sizeList = Marshal.SizeOf(typeof(IVS_CAMERA_BRIEF_INFO_LIST)); //992
long sizeInfo = Marshal.SizeOf(typeof(IVS_CAMERA_BRIEF_INFO)); //980
long deviceInfoLen = (pIndexRange.uiToIndex - pIndexRange.uiFromIndex) * sizeInfo; //2939020
long iBuffSize = sizeList + deviceInfoLen; //2940012
IntPtr pDeviceListPtr = Marshal.AllocHGlobal((int)iBuffSize); //734789664
IntPtr pDeviceINFO = Marshal.AllocHGlobal((int)deviceInfoLen); //737738784
int iCode = IVS_API.IVS_SDK_GetDeviceList(ApplicationEvent.iSession, 2, ref pIndexRange, pDeviceListPtr, (uint)iBuffSize); //0
IVS_CAMERA_BRIEF_INFO_LIST list = new IVS_CAMERA_BRIEF_INFO_LIST();
list.stCamerBriefInfo = new IVS_CAMERA_BRIEF_INFO[pIndexRange.uiToIndex - pIndexRange.uiFromIndex];
list = (IVS_CAMERA_BRIEF_INFO_LIST)Marshal.PtrToStructure(pDeviceListPtr, typeof(IVS_CAMERA_BRIEF_INFO_LIST));
iCameraCount = StringEx.getInt(list.uiTotal); //得到数量
Marshal.FreeHGlobal(pDeviceListPtr);
Marshal.FreeHGlobal(pDeviceINFO);
}
catch (System.Exception ex)
{
System.Console.WriteLine(ex.ToString());
}
return(iCameraCount);
}
public void InitCamearaList(int iPACK_SIZE)
{
CAMEAR_INF_LIST.Clear();
CAMEAR_CODE_LIST.Clear();
CameraNameList.Items.Clear();
IVS_INDEX_RANGE pIndexRange = new IVS_INDEX_RANGE();
pIndexRange.uiFromIndex = 1;
pIndexRange.uiToIndex = (uint)iPACK_SIZE;
try
{
long sizeList = Marshal.SizeOf(typeof(IVS_CAMERA_BRIEF_INFO_LIST)); //992
long sizeInfo = Marshal.SizeOf(typeof(IVS_CAMERA_BRIEF_INFO)); //980
long deviceInfoLen = (pIndexRange.uiToIndex - pIndexRange.uiFromIndex) * sizeInfo; //2939020
long iBuffSize = sizeList + deviceInfoLen; //2940012
IntPtr pDeviceListPtr = Marshal.AllocHGlobal((int)iBuffSize); //734789664
IntPtr pDeviceINFO = Marshal.AllocHGlobal((int)deviceInfoLen); //737738784
int iRet = IVS_API.IVS_SDK_GetDeviceList(ApplicationEvent.iSession, 2, ref pIndexRange, pDeviceListPtr, (uint)iBuffSize); //0
IVS_CAMERA_BRIEF_INFO_LIST list = new IVS_CAMERA_BRIEF_INFO_LIST();
list.stCamerBriefInfo = new IVS_CAMERA_BRIEF_INFO[pIndexRange.uiToIndex - pIndexRange.uiFromIndex];
list = (IVS_CAMERA_BRIEF_INFO_LIST)Marshal.PtrToStructure(pDeviceListPtr, typeof(IVS_CAMERA_BRIEF_INFO_LIST));
int cCameraCount = StringEx.getInt(list.uiTotal);//得到数量
if (list.uiTotal > 0)
{
IntPtr tempInfoIntPtr = Marshal.AllocHGlobal((int)sizeInfo);//531396896
byte[] tempInfoByte = new byte[sizeInfo];
for (int index = -1; index < pIndexRange.uiToIndex - pIndexRange.uiFromIndex && index < list.uiTotal - 1; index++)
{
Marshal.Copy((IntPtr)(pDeviceListPtr + (int)sizeList + (int)sizeInfo * index), tempInfoByte, 0, (int)sizeInfo);
Marshal.Copy(tempInfoByte, 0, tempInfoIntPtr, (int)sizeInfo);
IVS_CAMERA_BRIEF_INFO st = (IVS_CAMERA_BRIEF_INFO)Marshal.PtrToStructure(tempInfoIntPtr, typeof(IVS_CAMERA_BRIEF_INFO));//摄像机的内容
CAMEAR_INF_LIST.Add(st);
CAMEAR_CODE_LIST.Add(st.cCode);
CameraNameList.Items.Add(st.cName);
}
Marshal.FreeHGlobal(tempInfoIntPtr);
}
else
{
}
Marshal.FreeHGlobal(pDeviceListPtr);
Marshal.FreeHGlobal(pDeviceINFO);
}
catch (System.Exception ex)
{
System.Console.WriteLine(ex.ToString());
}
}