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Filter by week: 1 2 3 4 5 System.Runtime.InteropServices.COMException: Class not registered Posted by Donnie at 10/7/2004 4:13:05 PM Hello,
I'm trying to develop an ASP.NET application that uses a third-party COM
dll. I've added a reference to the dll in the web app project along with
adding a "using" directive in the code-behind (referencing the COM
namespace). Every time I try and run the application and call methods o...more >>
TypeLib created has no methods Posted by NOtcarvinSPAM NO[at]SPAM lycos.com at 10/7/2004 12:36:12 PM My simple problem is that when I use either RegAsm or TlbExp on a .NET Assembly,
the TypeLib created doesn't contain any methods. Only my classes are in there.
I'm assuming this is just my inexperience in using COM Interop?
Any help appreciated.
Tom...more >>
MSXML and C# Posted by Matej Trampus at 10/7/2004 8:05:06 AM Can anybody provides me with more information about interop between MSXML and
C#.
There is a knowledge base article on this subject:
815112 INFO: Use of MSXML is Not Supported in .NET Applications
.... but it provides very little information. I have several questions:
1.
I am in worki...more >>
Explorer Context Menu / IcontextMenu2 Interface Posted by Jeff Gaines at 10/6/2004 11:09:34 AM
I am working on a file manager type app (in C#) that use the
API/Interop quite extensively.
I am managing to get Explorer's context menu to appear and all of the
items show up properly (and work) except the 'Open With' item.
I am trapping the appropriate messages in my WndProc as follows:
...more >>
Exposing .Net struct in COM Posted by Mads at 10/6/2004 1:53:03 AM I'm trying to make my own ValueType in C#, i need to call this from COM so i
need to expose it.
When i'm trying to assign it from COM it says "Incompatible types: FinVal
and Integer"
public struct FinVal
{
private bool _assigned;
private bool Assigned
{
get
{
return _assig...more >>
marsal string array inside a struct Posted by Luis Abreu at 10/5/2004 11:20:49 PM I want to implement the interface IPerPropertyBrowsing. I'm having some
doubts regarding the correct implementation of this method:
HRESULT GetPredefinedStrings(
DISPID dispID, //Dispatch identifier for property
CALPOLESTR *pcaStringsOut, //Receives a pointer to an array of
...more >>
"regasm xxx.dll" vs "regasm xxx.dll /regfile" Posted by GT at 10/5/2004 11:09:02 PM Is this a regasm bug or does anyone have an explanation to this behaviour?
I have a com dll that defines additional "Implemented Categories".
When I register with regasm they are defined in the registry as expected.
When I try to create a registry file with the corresponding settings by
...more >>
Access to C# functions or classes from unmanaged C++ Posted by Clement at 10/5/2004 8:43:43 PM I have made a dll in unmanaged C++ code using Visual Studio.Net 2003. I
would like to access C# functions or class methods from this dll. The C#
code would be in an other dll.
Typically, the C++ code does shell interaction, while the C# part is a
GUI and a web services client. The functions...more >>
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error msg "assembly identity could not be determined" Posted by Rudy at 10/5/2004 4:52:48 PM I created a .NET-DLL and it should be called from a VB6 - program.
I created key.snk file added the path to the assemblyInfo-file, I gave a
GUID to all public classes, I created a tlb and ran gacutil. Also I see it
under windows/assembly! Although when running VB 6 that calls the DLL I get
an er...more >>
tlbimp.exe substitues coclass name for interface name Posted by zhangrusi at 10/5/2004 2:19:02 PM I am using tlbimp.exe to create managed wrappers around some COM objects.
Suppose I have an interface IFoo, and a second interface IBar whose methods
contain IFoo parameters. I am finding that if I add a coclass, CFoo, that
implements IFoo, to my type library, tlbimp.exe replaces IFoo with C...more >>
How to create my own interop assembly? Posted by Mansi at 10/5/2004 11:49:03 AM Hi,
I'm trying to automate excel 2000 from c# .NET. I also need for my code to
work on Excel 2000 and 2003. Since there are no PIAs available for office
2000, what steps do I need to follow to create my own interop assembly for
excel 2000. I'm assuming that once I link to this interop as...more >>
How to pass by reference to a managed C++ method Posted by Chandra at 10/5/2004 11:01:01 AM
void foo(int& a, int& b)
how can this method be called from C#?
foo( ref a, ref b) doesnt work??
Thanks!...more >>
IJW Memory Management Posted by Luis Fajardo at 10/5/2004 8:47:03 AM I need the help of the C++ gurus out there. I have the following code, it's
working great, but I'm concern about the lack memory management I'm doing. I
just want to confirm if I'm doing something wrong or my code is fine. I
don't want to put this code in production and find out in some day...more >>
defining the 'LIB' as a variable(VB) Posted by Tom Potts at 10/5/2004 6:33:07 AM rather than
Declare Function initscr Lib "stringpathto.dll" () As IntPtr
is there a way of using a constant similar to the following (which doesnt
work..)
Dim const dllpath as string = "stringpathto.dll"
Declare Function initscr Lib dllpath () As IntPtr
as I've got some very large dlls...more >>
Exception from Managed Component being swallowed in Interop Posted by Ian Tompsett at 10/4/2004 11:13:02 PM
I've got an OCX written in VB6 that has been successfully wrapped in a .NET
user control (in C#) using COM interop.
The OCX exposes a method for going off to a database and populating itself.
If anything goes wrong in this process it raises an event (using RaiseEvent),
which I'm happily ...more >>
memcpy equivelant in C# Posted by Torben at 10/4/2004 10:11:13 PM Hi,
I am currently trying to re-write some VC++ code into C#
but are having problems finding a way to convert the C++
memcpy into C#. The following is part of the existing code:
static int search_count;
static CFGINFO SearchInfo[MAX_DEVICE_NUM];
typedef struct _DS_INFO{
DWORD ...more >>
Import Type Library from C# .net into Delphi 5 Posted by Jimmy Lim at 10/4/2004 9:07:05 PM I am facing a problem using Delphi 5 here.
I used tlbexp.exe to export Type Library file from .net assembly.
With the ***.tlb file, i tried to import into delphi and install it on the
component palette. The following errors shown:-
[Error] mscorlib_TLB.pas(4515): Type 'Byte' is not yet complete...more >>
LPWSTR Posted by Robert Misiak at 10/4/2004 7:02:05 PM How do I marshal a LPWSTR argument? I need to read the string value after
calling the function. Should I use ref or out?
Something like:
static extern void Function([MarshalAs(UnmanagedType.LPWStr)] ref string
lpwVal);
??
Thanks,
Robert
...more >>
Limit on number of COM objects in C#/.NET??? Posted by Shawn Anderson at 10/4/2004 5:24:10 PM Does anyone know if there is a limit to the number of COM objects that can
be opened from a .NET application? I know it may be an odd question, but I
am trying to track down a bug in some code using the Outlook interop objects
and this is the only thing I have left to think ok.
Thanks
...more >>
DHCP Server Management API - DhcpEnumSubnetClients Posted by MichaelDH at 10/4/2004 1:49:04 AM Hello,
I'm about to script web page using .NET to manage DHCP servers.
Everything works fine so far as I'm using the dhcpobjs.dll.
The point is that I need to dump the current leases from a scope.
As this is not possible by the dhcpobjs.dll I used a netsh command and
querying the stdou...more >>
Preventing Outlook Messages. Posted by Tim Marsden at 10/1/2004 5:04:21 PM Hi,
I am using VB.Net to send a confirmation e-mail when a program has finished.
However when I do this I get messages "A program is trying to access e-mail
account ... etc" . These messages require action before the program can
continue. I want to program to run unattended.
How do I prev...more >>
"C# call VC COM, passing in memory block address" Revisit Posted by Liping at 10/1/2004 4:59:02 PM Hi,
I felt so lucky to find this discussion dated of Aug. 1st, because we are
having a similar problem. But as I tried a couple of times following the
steps carefully, only failed to work it out.( I modified the RCW wrapper's IL
file instead of the Windows Forms callable wrapper's IL file, ...more >>
Issue with ASP.NET client, COM Interop, and Identity impersonation Posted by Anil Krishnamurthy at 10/1/2004 4:29:51 PM We have an ASP.NET application that uses COM objects through Interop. The
web application requires access to network and database resources and hence,
needs to impersonate a domain account. The problem is that even when it is
configured to run under a certain identity through Web.config, the
imp...more >>
Problems with object Identities in RCW Posted by Ralf Heitmann at 10/1/2004 3:15:28 PM Hi,
By doing interprocess calls .NET --> COM (Exe server) I get the
following strange behaviour:
The identity of my COM instances get sometimes lost. I have the
following reproducable case (manager and the three "test" instances are
of type "__ComObject".
test1 and test2 references to...more >>
Freeing excel object Posted by Andreas Håkansson at 10/1/2004 2:33:11 PM I'm using Excel (using a COM Wrapper, not the PIA) do export some
information, once done I want to close the Excel process but can't seem
to get it right.
I've been searching the newsgroups and it seems to be a common problem,
and it doesn't seem that there is a universal solution - instead s...more >>
SHFileOperation as class (not struct) problem Posted by Mike Lansdaal at 10/1/2004 1:23:05 PM I have a rather odd problem with the API call SHFileOperation from C#. I
started out with defining a SHFILEOPSTRUCT as a struct, but switched to
defining it as a class after FxCop flagged an error about not implementing
IDisposable (and since structs can't have finalizers, I was unable to ful...more >>
Pointer To Object Posted by Thomas Fisher at 10/1/2004 12:40:00 PM Hello All,
I'm pretty new to interop so this could be a really simple problem.
In trying to get a managed object from a pointer the following error is
thrown:
"The structure must not be a value class."
Here's the code I'm using in VB.Net:
Dim VIH2 As DVDMedia.VIDEOINFOHEA...more >>
Writefile: the parameter is incorrect Posted by cjohns NO[at]SPAM gmail.com at 10/1/2004 12:20:51 PM Hi
I've got a problem which I just can't solve. My writefile() call is
giving me an ERROR_INCORRECT_PARAMETER, and I have no idea why. The
createfile has succeeded, because I have independent verification of
that from the device that I'm trying to talk to (e.g. DeviceIOControl
commands work...more >>
PInvoke threading issue Posted by Brett Robichaud at 10/1/2004 12:05:22 PM I have created a simple background thread to make one pinvoke call into a
DLL I've created. My Winforms app spawns the thread in the form load event
then go about it's business. The problem is that my form appears to be
blocked while the background thread is running.
I am very familir with t...more >>
HOWTO delete Word CustomDocumentProperty Posted by spaceodyssey NO[at]SPAM tiscali.it at 10/1/2004 8:19:24 AM I try to set a CustomDocumentProperty in a Word/Excel File i opend
using Office PIA and C#.
Everything's fine except I CAN'T FIND THE WAY TO DELETE IT!!!!
Here is some code...
[CODE]
object oDocCustomProps;
string strIndex = "idDocs";
string strValue;
oDocCustomProps = oDoc.CustomDocumen...more >>
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