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Thanks for the reply Roger..I tried the way u suggested.. I unregistered the server ,built it again and then registered it..I also cleaned up the client and tried to built it again..HRESULT Of ::CoCreateInstance() returned 0 and the interface pointer points a valid address..But, again Access Denied while calling the server method... 
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RevathiRamakumar wrote: HRESULT Of ::CoCreateInstance() returned 0 and the interface pointer points a valid address..But, again Access Denied while calling the server method...
That's odd...
If you're able to successfully create the server and get a valid pointer to the interface, I cannot see how you could get an access violation making the call.
It feels like there's some kind of mismatch between the server, typelib and client.
If you have changed from an IDispatch-derived interface to an IUnknown-derived, the virtual table the client tries to use may be out of sync. That's why I suggested that you should unregister all and rebuild from scratch.
How is your interface declared in the IDL-file?
It should be something like this:
[
object,
uuid( xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx ),
oleautomation,
helpstring( "IGetStatus interface" ),
]
interface IGetStatus : IUnknown
{
HRESULT GetBeat( [out] BSTR* pbstrTheBeat );
HRESULT GetCPU( [out] unsigned long* pulCpuLoad );
HRESULT GetMemory( [out] unsigned long* pulMemory );
};
Also make sure in the client that the IGetStatus interface, declared in the complier generated header file, only contains QueryInterface(), AddRef(), Release(), GetBeat(), GetCPU() and GetMemory().
Try using one of the other interface functions since it's more straight forward with integer values and you don't have to worry about string obscurities.
When you get that working you can continue with IGetStatus::GetBeat().
"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown
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Thanks for ur reply...When I tried calling AddRef() It worked fine...
ULONG i = pGetStatus->AddRef();//i=2
But, when the other methods are being called, it gives me access denied error..K I'll keep trying ..Thank u...
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Hi Mr.Roger I got it working after changing the Authentication level to NONE in dcomcnfg...Initially it was dEFAULT after changing it to NONE its working fine..
Thank u... 
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try
{
_bstr_t str1 ;
str1 = pGetStatus->GetBeat();
char* Text = str1;
AfxMessageBox(Text);
UINT CPU_Info = pGetStatus->Get_CPU();
int Memory_Info = pGetStatus->Get_Memory();
}
With best wishes,
Vita
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Thank u....Ya I tried them but ,getting Access Denied Error..
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Hi.. Now I could call the methods... I changed the Authentication level as NONE in the DCOM configuration... Its working fine..
Thank u ...
modified on Wednesday, April 15, 2009 6:28 AM
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Hi,
I accidently took out the Configuration Permissions on the Microsoft Word Document DCOM object on a Windows Server 2003, and now I cannot edit anything on any of the property pages, which means I have no way to get the permissions back in there unless I do it programmatically. I have searched everywhere, and occasionally something comes up that can modify permissions, but it's always for Launch and Activation, and Access, never for Configuration. This elusive set of permissions seems to live somewhere else in the nether regions of DCOM, and I cannot find it. Does anyone have any ideas?
Thanks!
Sean
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You could try and run the Office installation again.
«_Superman_»
I love work. It gives me something to do between weekends.
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Thanks, but it simply looks for the existence of the DCOM object, but doesn't change its permissions.
See solution below tho!
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I found my own solution!
You can read the full doc here:
http://www.tech-archive.net/Archive/Development/microsoft.public.win32.programmer.ole/2005-06/msg00138.html[^]
Essentially, the configuration permissions are just a logical view of the registry ACL on the AppId key. So Launch and Activation permissions are serialized security descriptors stored in their respective registry value, whereas Configuration permissions are just read from the AppID key directly. So repairing the permissions is simply a matter of adding them back to the registry key itself!
Sean
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Hi -- I am reading a Motorola scanner via a PC serial port using a standard Motorola supplied VB program. The problem is that every time the PC is rebooted, two buttons have to be pressed on the VB application program to enable the connection between the application and the scanner.
Would someone be interested in helping us modify the application so that this connection is established automatically? Willing to pay for help.
Thanks.
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COM here stands for Component Object Model and not a serial port.
You should put the VB application in the Run registry key so that it starts up automatically after a reboot and then call the button click routines in the Form load event so that it connects automatically to the scanner.
«_Superman_»
I love work. It gives me something to do between weekends.
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Hi all,
I created a ActiveX(C# and .NET).
now,i've register it in my computer. and use <object> tag in html file.
when i open the IE and specify the html address, what's UsageMode? Designtime? Runtime?
how to differentiate this two mode?
i implement LicenseProvider in ActiveX,and write code in GetLicense procedure.
if (context.UsageMode == LicenseUsageMode.Designtime)
{
System.Windows.Forms.MessageBox.Show("Designtime");
}
if (context.UsageMode == LicenseUsageMode.Runtime)
{
System.Windows.Forms.MessageBox.Show("Runtime");
}
but, it always show Designtime.
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I’m getting a assertion in below code. What could be the prolbem.
bool AxControl::CreateOleClientInstance(CLSID clsidActual)
{
clsid = clsidActual;
AfxEnableControlContainer();
pDoc = new COCXDocument();
pDoc->OnNewDocument();
pClient = new COCXClientItem(pDoc);
CoInitialize(NULL);
pClient->CreateNewItem(clsidActual);
pClient->m_lpObject->QueryInterface(
IID_IDispatch, (void**)&m_lpObjectdispatch);
return true;
}
VIBIN
"Fool's run away,where angle's fear to tread"
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...you know, I googled COCXClientItem, and there WAS NOTHING.
What is it? Did you write the code? Derive it from some other class that is publicly documented?
Assertions usually crash the application (by design), so I assume that the code you displayed above actually compiled. That means that COCXClientItem must be in one of your header files, or would have generated a compiler error.
I would suspect that the clsidActual variable did not pass some simple error checking test (for instance, checking for an invalid value). You could do that yourself before you passed it to COCXClientItem->CreateNewItem ().
This most closely resembles your code example: COleClientItem::CreateNewItem[^], except that it has four function parameters, whereas yours has only one.
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Hello All,
When we right click on any mail present in inbox then we get a context menu.
I need to customize that context menu.
Can anybody help me?
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I am trying to access a c++ created DLL from within Excel, with semi-success only:
I've followed the following tutorial EXACTLY: http://newtonexcelbach.wordpress.com...ng-excel-to-c/
Now, when I try and use the dll-functions that I've declared in the VB code, the function GetPrice(), which takes no arguments and simply returns a number, works fine.
However, as soon as I create a dll-function which takes input arguments, I get a #VALUE error in the cell in Excel ("A value used in formula is of the wrong data type" ).
I've downloaded the complete sample from the URL above and get the same error when running it (after recalculating the formulas).
I've created a test 'proxy' function (in which the code can be stepped through, which calls the dll function) to ensure that values sent to the dll function are indeed of type double and that seems to be the case ...
This guy seems to have had the same problem, however no solution was posted:
http://www.ozgrid.com/forum/showthread.php?t=54245[^]
Any help / tips would be greatly appreciated!
g
excell dll newbie
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when I am Loading the EXE file I am getting this error. How can I rectiy this
error
Could not load file or assembly 'Microsoft.Office.Interop.Word, Version=11.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c' or one of its dependencies. The system cannot find the file specified.
Here is the Code Below
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Text.RegularExpressions;
using System.IO;
using Microsoft.Office.Interop.Word;
namespace WordCheckPercent
{
public partial class Form1 : Form
{
Match m;
Regex r;
FileStream fsr;
FileStream fsw;
StreamReader sr;
StreamWriter sw;
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
button1.Enabled = false;
button2.Enabled = false;
File.Delete("c:\\tmp.txt");
File.Delete("c:\\tmp1.txt");
//Word.Application app = new Word.ApplicationClass();
Microsoft.Office.Interop.Word.ApplicationClass app = new Microsoft.Office.Interop.Word.ApplicationClass();
object nullobj = System.Reflection.Missing.Value;
string docpath = "";
foreach(string str in Directory.GetFiles(textBox1.Text))
{
if((str.EndsWith(".doc"))||(str.EndsWith(".rtf")))
{
docpath=str;
break;
}
}
object file =docpath;
Microsoft.Office.Interop.Word.Document doc = app.Documents.Open
(ref file, ref nullobj, ref nullobj, ref nullobj,
ref nullobj, ref nullobj, ref nullobj, ref nullobj,
ref nullobj, ref nullobj, ref nullobj, ref nullobj,
ref nullobj, ref nullobj, ref nullobj, ref nullobj);
doc.ActiveWindow.Selection.WholeStory();
doc.ActiveWindow.Selection.Copy();
IDataObject data = Clipboard.GetDataObject();
// string text = data.GetData(DataFormats.Text).ToString();
//string text = data.GetData(DataFormats.Text).ToString();
string text = data.GetData(DataFormats.Text).ToString();
// MessageBox.Show(text);
doc.Close(ref nullobj, ref nullobj, ref nullobj);
app.Quit(ref nullobj, ref nullobj, ref nullobj);
fsw=new FileStream("c:\\tmp.txt",FileMode.Create,FileAccess.Write);
sw=new StreamWriter(fsw);
sw.Write(text);
sw.Close();fsw.Close();
fsr = new FileStream("c:\\tmp.txt", FileMode.Open, FileAccess.Read);
sr = new StreamReader(fsr);
string line = sr.ReadToEnd();
line = Regex.Replace(line, " ", "\r\n");
line = Regex.Replace(line, @"([\r\n]+)", "\r\n");
sr.Close(); fsr.Close();
fsw = new FileStream("c:\\tmp1.txt", FileMode.Create, FileAccess.Write);
sw = new StreamWriter(fsw);
sw.Write(line);
sw.Close(); fsw.Close();
fsr = new FileStream("c:\\tmp1.txt", FileMode.Open, FileAccess.Read);
sr = new StreamReader(fsr);
int countdoc = 0;
while ((line = sr.ReadLine()) != null)
{
if (line != "")
{
countdoc = countdoc + 1;
}
// MessageBox.Show(line);
}
sr.Close(); fsr.Close();
MessageBox.Show("Source file Word count :- "+countdoc.ToString());
////////////////////////////////////////////////////////////
progressBar1.Visible = true;
this.progressBar1.Maximum = countdoc;
this.progressBar1.Minimum = 0;
this.progressBar1.Step = 1;
File.Delete(textBox1.Text + "\\error.txt");
fsr = new FileStream("c:\\tmp1.txt", FileMode.Open, FileAccess.Read);
sr = new StreamReader(fsr);
bool status = false;
Microsoft.Office.Interop.Word.ApplicationClass winword = new Microsoft.Office.Interop.Word.ApplicationClass();
Object o = System.Reflection.Missing.Value;
while ((line = sr.ReadLine()) != null)
{
m = Regex.Match(line, @"([a-z])([^a-z])([a-z])", RegexOptions.IgnoreCase);
if (m.Success)
{
}
else
{
line = Regex.Replace(line, @"([a-z])([^a-z])", "$1", RegexOptions.IgnoreCase);
line = Regex.Replace(line, @"([^a-z])([a-z])", "$2", RegexOptions.IgnoreCase);
}
status = winword.CheckSpelling(line, ref o, ref o, ref o, ref o, ref o, ref o, ref o, ref o, ref o, ref o, ref o, ref o);
if (line.Length == 1)
{
if ((line == "i") || (line == "I") || (line == "a") || (line == "A"))
{
status = true;
line = " " + line + " ";
}
else
{
m = Regex.Match(line, @"[a-z]", RegexOptions.IgnoreCase);
if (m.Success)
{
status = false;
line = " " + line + " ";
}
else
{
status = true;
}
}
}
if (status == false)
{
fsw = new FileStream(textBox1.Text + "\\error.txt", FileMode.Append, FileAccess.Write);
sw = new StreamWriter(fsw);
sw.WriteLine(line);
sw.Close(); fsw.Close();
}
progressBar1.PerformStep();
}
winword.Quit(ref nullobj, ref nullobj, ref nullobj);
progressBar1.Visible = false;
////////////////////////////////////
int counttxt = 0;
fsr = new FileStream(textBox1.Text + "\\error.txt", FileMode.Open, FileAccess.Read);
sr = new StreamReader(fsr);
while ((line = sr.ReadLine()) != null)
{
if (line != "")
{
counttxt = counttxt + 1;
}
}
sr.Close(); fsr.Close();
MessageBox.Show("Total Error count:- "+counttxt.ToString());
fsw = new FileStream(textBox1.Text+"\\DataAccuracy.txt", FileMode.Create, FileAccess.Write);
sw = new StreamWriter(fsw);
double mu=(counttxt*100);
double final=100-(mu/countdoc);
int ab = docpath.LastIndexOf("\\");
string filnam = docpath.Substring(ab + 1);
sw.WriteLine("###########################" + filnam + "###########################");
sw.WriteLine("\r\n\r\n");
sw.WriteLine("Source file Word count :- " + countdoc);
sw.WriteLine();
sw.WriteLine("Total Error count:- " + counttxt);
sw.WriteLine();
sw.WriteLine("Data Accuracy for given file is :- "+final+"%");
sw.Close(); fsw.Close();
this.Close();
File.Delete("c:\\tmp.txt");
// File.Delete("c:\\tmp1.txt");
}
private void button2_Click(object sender, EventArgs e)
{
if (this.folderBrowserDialog1.ShowDialog() == DialogResult.OK)
this.textBox1.Text = this.folderBrowserDialog1.SelectedPath;
}
}
}
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This is the COM Forum. If you post this at the .NET Framework Forum, you'll probably get a better response.
But, it's probably just a version problem. As I recall, there is a method to specify the correct version.
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Hello,
I have COM component. It contains one GetRecordSet method which takes one of the parameter ADODB.Connection and return ADODB.Recordset. But while accessing through ASP it gives error Invalid Procedure call or argument.
Same method works fine from VB and VC.
If you have any solution for it,then plz let me know.
Thanks !
Regards,
Vibhuti
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I have a C# class which contains a jagged array as one of its properties exposed to COM:
string[][] Measurements
The property vcan easily be read/set by .Net applications but I was asked to expose it to COM applications (namely VB6 and VBScript). I was able to expose all the properties to COM except this jagged array because there's no marshalling support for jagged arrays. So, I've tried to change it from string[][] to string[,] Measurements, but now I can see this property in VB6 and when I call it I can't get the data populated in a VB array. LBound and UBound give the correct array size but this code give wrong type error:
For r = LBound(objClass.Measurements, 1) To UBound(objClass.Measurements, 1)
For f = LBound(objClass.Measurements, 2) To UBound(objClass.Measurements, 2)
sMeasurements = sMeasurements & objClass.Measurements[r, f])
Next
Next
And this code returns the data scrambled: the values in objClass.Measurements(0,0) then objCard.Measurements(1,0) then (0,1) then (1,1) etc. instead of (0,0) then (0,1) then (0,2) then (0,3) etc.:
For Each sReading In objClass.Measurements
Debug.Print sReading
Next
Any idea how I should declare the jagged array in the C# module and how I should call it from VB6 or VBScript?
Thanks,
Martha
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AFAIK, this example demonstrates jagged array in VB:
Dim v As Variant, i As Long, j As Long
v = Array(Array(1, 2), Array(3, 4, 5))
For i = LBound(v) To UBound(v)
For j = LBound(v(i)) To UBound(v(i))
Debug.Print v(i)(j)
Next
Next
It can be also applied to "v() As Variant".
With best wishes,
Vita
modified on Wednesday, March 25, 2009 5:30 AM
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Hi Guys. My first post in this forumn so please bare with me. I have built an app that references office 12 because I have Office 2007 installed on my PC. However, when I build the exe and install this on another machine it doesn want to work. Is it because the other machine has office 2003 installed on it? Is there an easy way for me to get around this other than having to uninstall Office 2007 from my machine and installing Office 2003 so I can reference the correct com file and build the project with it??
Excellence is doing ordinary things extraordinarily well.
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The simplest and most obvious solution is to write a function that determines what version of Office is installed on the LOCAL MACHINE, and then references the existing library component based on that condition.
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