public void Next(int enumcountmax, out OPCItemAttributes[] attributes)
{
attributes = null;
IntPtr ptrAtt;
int count;
ifEnum.Next(enumcountmax, out ptrAtt, out count);
int runatt = (int)ptrAtt;
if ((runatt == 0) || (count <= 0) || (count > enumcountmax))
{
return;
}
attributes = new OPCItemAttributes[count];
IntPtr ptrString;
for (int i = 0; i < count; i++)
{
attributes[i] = new OPCItemAttributes();
ptrString = (IntPtr)Marshal.ReadInt32((IntPtr)runatt);
attributes[i].AccessPath = Marshal.PtrToStringUni(ptrString);
Marshal.FreeCoTaskMem(ptrString);
ptrString = (IntPtr)Marshal.ReadInt32((IntPtr)(runatt + 4));
attributes[i].ItemID = Marshal.PtrToStringUni(ptrString);
Marshal.FreeCoTaskMem(ptrString);
attributes[i].Active = (Marshal.ReadInt32((IntPtr)(runatt + 8))) != 0;
attributes[i].HandleClient = Marshal.ReadInt32((IntPtr)(runatt + 12));
attributes[i].HandleServer = Marshal.ReadInt32((IntPtr)(runatt + 16));
attributes[i].AccessRights = (OPCACCESSRIGHTS)Marshal.ReadInt32((IntPtr)(runatt + 20));
attributes[i].RequestedDataType = (VarEnum)Marshal.ReadInt16((IntPtr)(runatt + 32));
attributes[i].CanonicalDataType = (VarEnum)Marshal.ReadInt16((IntPtr)(runatt + 34));
attributes[i].EUType = (OPCEUTYPE)Marshal.ReadInt32((IntPtr)(runatt + 36));
attributes[i].EUInfo = Marshal.GetObjectForNativeVariant((IntPtr)(runatt + 40));
DUMMY_VARIANT.VariantClear((IntPtr)(runatt + 40));
int ptrblob = Marshal.ReadInt32((IntPtr)(runatt + 28));
if ((ptrblob != 0))
{
int blobsize = Marshal.ReadInt32((IntPtr)(runatt + 24));
if (blobsize > 0)
{
attributes[i].Blob = new byte[blobsize];
Marshal.Copy((IntPtr)ptrblob, attributes[i].Blob, 0, blobsize);
}
Marshal.FreeCoTaskMem((IntPtr)ptrblob);
}
runatt += 56;
}
Marshal.FreeCoTaskMem(ptrAtt);
}
// ------------------------ IOPCSyncIO ---------------
public bool Read(OPCDATASOURCE src, int[] arrHSrv, out OPCItemState[] arrStat)
{
arrStat = null;
int count = arrHSrv.Length;
IntPtr ptrStat;
IntPtr ptrErr;
int hresult = ifSync.Read(src, count, arrHSrv, out ptrStat, out ptrErr);
if (HRESULTS.Failed(hresult))
{
Marshal.ThrowExceptionForHR(hresult);
}
int runErr = (int)ptrErr;
int runStat = (int)ptrStat;
if ((runErr == 0) || (runStat == 0))
{
Marshal.ThrowExceptionForHR(HRESULTS.E_ABORT);
}
arrStat = new OPCItemState[count];
for (int i = 0; i < count; i++)
{ // WORKAROUND !!!
arrStat[i] = new OPCItemState();
arrStat[i].Error = Marshal.ReadInt32((IntPtr)runErr);
runErr += 4;
arrStat[i].HandleClient = Marshal.ReadInt32((IntPtr)runStat);
if (HRESULTS.Succeeded(arrStat[i].Error))
{
short vt = Marshal.ReadInt16((IntPtr)(runStat + 16));
if (vt == (short)VarEnum.VT_ERROR)
{
arrStat[i].Error = Marshal.ReadInt32((IntPtr)(runStat + 24));
}
arrStat[i].TimeStamp = Marshal.ReadInt64((IntPtr)(runStat + 4));
arrStat[i].Quality = Marshal.ReadInt16((IntPtr)(runStat + 12));
arrStat[i].DataValue = Marshal.GetObjectForNativeVariant((IntPtr)(runStat + 16));
DUMMY_VARIANT.VariantClear((IntPtr)(runStat + 16));
}
else
{
arrStat[i].DataValue = null;
}
runStat += 32;
}
Marshal.FreeCoTaskMem(ptrStat);
Marshal.FreeCoTaskMem(ptrErr);
return(hresult == HRESULTS.S_OK);
}
public bool ViewItem(string opcid)
{
try
{
RemoveItem(); // first remove previous item if any
itmHandleClient = 1234;
OPCItemDef[] aD = new OPCItemDef[1];
aD[0] = new OPCItemDef(opcid, true, itmHandleClient, VarEnum.VT_EMPTY);
OPCItemResult[] arrRes;
theGrp.AddItems(aD, out arrRes);
if (arrRes == null)
{
return(false);
}
if (arrRes[0].Error != HRESULTS.S_OK)
{
return(false);
}
btnItemMore.Enabled = true;
itmHandleServer = arrRes[0].HandleServer;
itmAccessRights = arrRes[0].AccessRights;
itmTypeCode = VT2TypeCode(arrRes[0].CanonicalDataType);
txtItemID.Text = opcid;
txtItemDataType.Text = DUMMY_VARIANT.VarEnumToString(arrRes[0].CanonicalDataType);
if ((itmAccessRights & OPCACCESSRIGHTS.OPC_READABLE) != 0)
{
int cancelID;
theGrp.Refresh2(OPCDATASOURCE.OPC_DS_DEVICE, 7788, out cancelID);
}
else
{
txtItemValue.Text = "no read access";
}
if (itmTypeCode != TypeCode.Object) // Object=failed!
{
// check if write is premitted
if ((itmAccessRights & OPCACCESSRIGHTS.OPC_WRITEABLE) != 0)
{
btnItemWrite.Enabled = true;
}
}
}
catch (COMException)
{
MessageBox.Show(this, "AddItem OPC error!", "ViewItem", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return(false);
}
return(true);
}
public bool GetItemProperties(string itemID, int[] propertyIDs, out OPCPropertyData[] propertiesData)
{
propertiesData = null;
int count = propertyIDs.Length;
if (count < 1)
{
return(false);
}
IntPtr ptrDat;
IntPtr ptrErr;
int hresult = ifItmProps.GetItemProperties(itemID, count, propertyIDs, out ptrDat, out ptrErr);
if (HRESULTS.Failed(hresult))
{
Marshal.ThrowExceptionForHR(hresult);
}
int runDat = (int)ptrDat;
int runErr = (int)ptrErr;
if ((runDat == 0) || (runErr == 0))
{
Marshal.ThrowExceptionForHR(HRESULTS.E_ABORT);
}
propertiesData = new OPCPropertyData[count];
for (int i = 0; i < count; i++)
{
propertiesData[i] = new OPCPropertyData();
propertiesData[i].PropertyID = propertyIDs[i];
propertiesData[i].Error = Marshal.ReadInt32((IntPtr)runErr);
runErr += 4;
if (propertiesData[i].Error == HRESULTS.S_OK)
{
propertiesData[i].Data = Marshal.GetObjectForNativeVariant((IntPtr)runDat);
DUMMY_VARIANT.VariantClear((IntPtr)runDat);
}
else
{
propertiesData[i].Data = null;
}
runDat += DUMMY_VARIANT.ConstSize;
}
Marshal.FreeCoTaskMem(ptrDat);
Marshal.FreeCoTaskMem(ptrErr);
return(hresult == HRESULTS.S_OK);
}
public bool Read(OPCDATASOURCE src, int[] arrHSrv, out OPCItemState[] arrStat)
{
IntPtr ptr;
IntPtr ptr2;
arrStat = null;
int length = arrHSrv.Length;
int hresultcode = this.ifSync.Read(src, length, arrHSrv, out ptr, out ptr2);
if (HRESULTS.Failed(hresultcode))
{
Marshal.ThrowExceptionForHR(hresultcode);
}
int num3 = (int)ptr2;
int num4 = (int)ptr;
if ((num3 == 0) || (num4 == 0))
{
Marshal.ThrowExceptionForHR(-2147467260);
}
arrStat = new OPCItemState[length];
for (int i = 0; i < length; i++)
{
arrStat[i] = new OPCItemState();
arrStat[i].Error = Marshal.ReadInt32((IntPtr)num3);
num3 += 4;
arrStat[i].HandleClient = Marshal.ReadInt32((IntPtr)num4);
if (HRESULTS.Succeeded(arrStat[i].Error))
{
if (Marshal.ReadInt16((IntPtr)(num4 + 0x10)) == 10)
{
arrStat[i].Error = Marshal.ReadInt32((IntPtr)(num4 + 0x18));
}
arrStat[i].TimeStamp = Marshal.ReadInt64((IntPtr)(num4 + 4));
arrStat[i].Quality = Marshal.ReadInt16((IntPtr)(num4 + 12));
arrStat[i].DataValue = Marshal.GetObjectForNativeVariant((IntPtr)(num4 + 0x10));
DUMMY_VARIANT.VariantClear((IntPtr)(num4 + 0x10));
}
else
{
arrStat[i].DataValue = null;
}
num4 += 0x20;
}
Marshal.FreeCoTaskMem(ptr);
Marshal.FreeCoTaskMem(ptr2);
return(hresultcode == 0);
}
public bool GetItemProperties(string itemID, int[] propertyIDs, out OPCPropertyData[] propertiesData)
{
IntPtr ptr;
IntPtr ptr2;
propertiesData = null;
int length = propertyIDs.Length;
if (length < 1)
{
return(false);
}
int hresultcode = this.ifItmProps.GetItemProperties(itemID, length, propertyIDs, out ptr, out ptr2);
if (HRESULTS.Failed(hresultcode))
{
Marshal.ThrowExceptionForHR(hresultcode);
}
int num3 = (int)ptr;
int num4 = (int)ptr2;
if ((num3 == 0) || (num4 == 0))
{
Marshal.ThrowExceptionForHR(-2147467260);
}
propertiesData = new OPCPropertyData[length];
for (int i = 0; i < length; i++)
{
propertiesData[i] = new OPCPropertyData();
propertiesData[i].PropertyID = propertyIDs[i];
propertiesData[i].Error = Marshal.ReadInt32((IntPtr)num4);
num4 += 4;
if (propertiesData[i].Error == 0)
{
propertiesData[i].Data = Marshal.GetObjectForNativeVariant((IntPtr)num3);
DUMMY_VARIANT.VariantClear((IntPtr)num3);
}
else
{
propertiesData[i].Data = null;
}
num3 += DUMMY_VARIANT.ConstSize;
}
Marshal.FreeCoTaskMem(ptr);
Marshal.FreeCoTaskMem(ptr2);
return(hresultcode == 0);
}
public void Next(int enumcountmax, out OPCItemAttributes[] attributes)
{
IntPtr ptr;
int num;
attributes = null;
this.ifEnum.Next(enumcountmax, out ptr, out num);
int num2 = (int)ptr;
if (((num2 != 0) && (num > 0)) && (num <= enumcountmax))
{
attributes = new OPCItemAttributes[num];
for (int i = 0; i < num; i++)
{
attributes[i] = new OPCItemAttributes();
IntPtr ptr2 = (IntPtr)Marshal.ReadInt32((IntPtr)num2);
attributes[i].AccessPath = Marshal.PtrToStringUni(ptr2);
Marshal.FreeCoTaskMem(ptr2);
ptr2 = (IntPtr)Marshal.ReadInt32((IntPtr)(num2 + 4));
attributes[i].ItemID = Marshal.PtrToStringUni(ptr2);
Marshal.FreeCoTaskMem(ptr2);
attributes[i].Active = Marshal.ReadInt32((IntPtr)(num2 + 8)) != 0;
attributes[i].HandleClient = Marshal.ReadInt32((IntPtr)(num2 + 12));
attributes[i].HandleServer = Marshal.ReadInt32((IntPtr)(num2 + 0x10));
attributes[i].AccessRights = (OPCACCESSRIGHTS)Marshal.ReadInt32((IntPtr)(num2 + 20));
attributes[i].RequestedDataType = (VarEnum)Marshal.ReadInt16((IntPtr)(num2 + 0x20));
attributes[i].CanonicalDataType = (VarEnum)Marshal.ReadInt16((IntPtr)(num2 + 0x22));
attributes[i].EUType = (OPCEUTYPE)Marshal.ReadInt32((IntPtr)(num2 + 0x24));
attributes[i].EUInfo = Marshal.GetObjectForNativeVariant((IntPtr)(num2 + 40));
DUMMY_VARIANT.VariantClear((IntPtr)(num2 + 40));
int num4 = Marshal.ReadInt32((IntPtr)(num2 + 0x1c));
if (num4 != 0)
{
int length = Marshal.ReadInt32((IntPtr)(num2 + 0x18));
if (length > 0)
{
attributes[i].Blob = new byte[length];
Marshal.Copy((IntPtr)num4, attributes[i].Blob, 0, length);
}
Marshal.FreeCoTaskMem((IntPtr)num4);
}
num2 += 0x38;
}
Marshal.FreeCoTaskMem(ptr);
}
}
public void TestVarEnumToString01()
{
System.Runtime.InteropServices.VarEnum varEnum = (System.Runtime.InteropServices.VarEnum)DUMMY_VARIANT.VT_ILLEGAL;
//Test Procedure Call
string str = DUMMY_VARIANT.VarEnumToString(varEnum);
//Post Condition Check
Assert.AreEqual("VT_ILLEGAL", str);
//test
varEnum = (System.Runtime.InteropServices.VarEnum)DUMMY_VARIANT.VT_ARRAY;
//Test Procedure Call
str = DUMMY_VARIANT.VarEnumToString(varEnum);
//Post Condition Check
Assert.AreEqual("VT_ARRAY | VT_EMPTY", str);
//test
varEnum = (System.Runtime.InteropServices.VarEnum)DUMMY_VARIANT.VT_BYREF;
//Test Procedure Call
str = DUMMY_VARIANT.VarEnumToString(varEnum);
//Post Condition Check
Assert.AreEqual("VT_BYREF | VT_EMPTY", str);
//test
varEnum = (System.Runtime.InteropServices.VarEnum)DUMMY_VARIANT.VT_VECTOR;
//Test Procedure Call
str = DUMMY_VARIANT.VarEnumToString(varEnum);
//Post Condition Check
Assert.AreEqual("VT_VECTOR | VT_EMPTY", str);
//test
varEnum = (System.Runtime.InteropServices.VarEnum)DUMMY_VARIANT.VT_TYPEMASK;
//Test Procedure Call
str = DUMMY_VARIANT.VarEnumToString(varEnum);
//test
varEnum = System.Runtime.InteropServices.VarEnum.VT_I4;
//Test Procedure Call
str = DUMMY_VARIANT.VarEnumToString(varEnum);
//Post Condition Check
Assert.AreEqual("VT_I4", str);
}
public void ListAllProperties(ref OpcServer theSrv, string itemid)
{
listPropsView.Items.Clear();
string[] istrs = new string[5];
OPCProperty[] props;
OPCPropertyData[] propdata;
int[] propertyIDs = new int[1];
OPCPropertyItem[] propitm;
try
{
theSrv.QueryAvailableProperties(itemid, out props);
if (props == null)
{
return;
}
foreach (OPCProperty p in props)
{
istrs[0] = p.PropertyID.ToString();
istrs[1] = p.Description;
istrs[2] = DUMMY_VARIANT.VarEnumToString(p.DataType);
istrs[3] = "";
istrs[4] = "";
propertyIDs[0] = p.PropertyID;
theSrv.GetItemProperties(itemid, propertyIDs, out propdata);
if (propdata != null)
{
if (propdata[0].Error != HRESULTS.S_OK)
{
istrs[3] = "!Error 0x" + propdata[0].Error.ToString("X");
}
else
{
istrs[3] = propdata[0].Data.ToString();
}
}
if (p.PropertyID > 6)
{
theSrv.LookupItemIDs(itemid, propertyIDs, out propitm);
if (propitm != null)
{
if (propitm[0].Error != HRESULTS.S_OK)
{
istrs[4] = "!Error 0x" + propitm[0].Error.ToString("X");
}
else
{
istrs[4] = propitm[0].newItemID;
}
}
}
listPropsView.Items.Add(new ListViewItem(istrs));
}
}
catch (COMException)
{
MessageBox.Show(this, "QueryAvailableProperties failed!", "Item Properties", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
// preselect top item in ListView
listPropsView.Items[0].Selected = true;
}
public void TestCreateDUMMY_VARIANT01()
{
DUMMY_VARIANT dUMMY_VARIANT = CreateDUMMY_VARIANT01();
Assert.IsNotNull(dUMMY_VARIANT);
}
public static DUMMY_VARIANT CreateDUMMY_VARIANT01()
{
DUMMY_VARIANT dUMMY_VARIANT = new DUMMY_VARIANT();
return(dUMMY_VARIANT);
}
public override string ToString()
{
return(string.Concat(new object[] { "ID:", this.PropertyID, " '", this.Description, "' T:", DUMMY_VARIANT.VarEnumToString(this.DataType) }));
}
public override string ToString()
{
return("ID:" + PropertyID + " '" + Description + "' T:" + DUMMY_VARIANT.VarEnumToString(DataType));
}
public OPCItemState[] Read(int[] arrHSrv)
{
OPCItemState[] arrStat;
arrStat = null;
int count = arrHSrv.Length;
IntPtr ptrStat;
IntPtr ptrErr;
int hresult = ifSync.Read(OPCDATASOURCE.OPC_DS_DEVICE, count, arrHSrv, out ptrStat, out ptrErr);
if (HRESULTS.Failed(hresult))
{
#region 新建组读取
values = new List <ItemValue>();
readed = false;
OPC.Data.OpcGroup grouop = new OpcGroup("wef2", true, 500, 500, 0);
this.group = grouop;
this.Server.OpcGroups.Add(grouop);
grouop.DataChanged += new DataChangeEventHandler(grouop_DataChanged);
int index = 0;
foreach (int hid in arrHSrv)
{
OPCItem item = this.Items.GetItemByServerHandler(hid);
values.Add(new ItemValue(item.ID, null));
}
foreach (int hid in arrHSrv)
{
OPCItem item = this.Items.GetItemByServerHandler(hid);
OPCItem newItem = new OPCItem(item.ID, index);
grouop.Items.Add(newItem);
index++;
}
while (true)
{
if (readed)
{
OPCItemState[] states = new OPCItemState[arrHSrv.Length];
for (int i = 0; i < states.Length; i++)
{
states[i] = values[i].value;
}
this.group = null;
grouop.Items.Clear();
this.Server.OpcGroups.Remove(grouop);
return(states);
}
Thread.Sleep(20);
}
#endregion
if (HRESULTS.Failed(hresult))
{
throw (new Exception("读取Item值出错，public OPCItemState[] Read(int[] arrHSrv)函数ifSync.Read(OPCDATASOURCE.OPC_DS_CACHE, count, arrHSrv, out ptrStat, out ptrErr)语句"));
}
}
int runErr = (int)ptrErr;
int runStat = (int)ptrStat;
if ((runErr == 0) || (runStat == 0))
{
Marshal.ThrowExceptionForHR(HRESULTS.E_ABORT);
}
arrStat = new OPCItemState[count];
for (int i = 0; i < count; i++)
{ // WORKAROUND !!!
OPCItemState item = new OPCItemState();
arrStat[i] = item;
item.Error = Marshal.ReadInt32((IntPtr)runErr);
runErr += 4;
item.HandleClient = Marshal.ReadInt32((IntPtr)runStat);
if (HRESULTS.Succeeded(item.Error))
{
short vt = Marshal.ReadInt16((IntPtr)(runStat + 16));
if (vt == (short)VarEnum.VT_ERROR)
{
item.Error = Marshal.ReadInt32((IntPtr)(runStat + 24));
}
try
{
item.TimeStamp = DateTime.FromFileTime(Marshal.ReadInt64((IntPtr)(runStat + 4)));
}
catch
{
}
try
{
item.QualityString = OpcGroup.QualityToString(Marshal.ReadInt16((IntPtr)(runStat + 12)));
}
catch
{
}
item.DataValue = Marshal.GetObjectForNativeVariant((IntPtr)(runStat + 16));
DUMMY_VARIANT.VariantClear((IntPtr)(runStat + 16));
}
else
{
item.DataValue = null;
}
runStat += 32;
}
Marshal.FreeCoTaskMem(ptrStat);
Marshal.FreeCoTaskMem(ptrErr);
return(arrStat);
//if (hresult == HRESULTS.S_OK)
//{
// return arrStat;
//}
//else
//{
// return null;
//}
}
