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I have a simple C++ project which uses the CoCreateInstance to access and use some C# code (com-exposed class). The simple code looks like: // ... hr = CoCreateInstance( CLSID_rclsid, NULL, ...
Kaktus's user avatar
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ActiveX control was registered from dll file using regsvr32: cd \windows\syswow64 regsvr32 "C:\mapp\mycontrol.dll" FoxPro object is created from it using ofiscalprinter=CREATEOBJECT('...
Andrus's user avatar
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I am currently using a COM Interop DLL, generated with tlbimp, to access a proprietary COM library from C# (net8), so no source code available (TLB embedded in DLL). It works, but stops me from using ...
boennhoff's user avatar
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I'm currently using a COM component to initialize an instance of CCertRequest from CertCliLib. I would like to move to CSWin32 with that, but it seems the CCertRequest does not implement any ...
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When launching MMC in 64-bit Windows, MMC64 will start, then if the -32 switch was passed in the command line, MMC64 will try and start MMC32 and, if succesful, MMC64 will terminate. When creating an ...
matpop's user avatar
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I've recently started doing a bit of Python coding, using VS Code, to create macros / applications for CATIA (using it's COM interface). In CATIA itself, I can use the included VBA editor to write ...
JJB's user avatar
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3 votes
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The documentation on delete on paste states: If the target does not do an optimized move, it calls the IDataObject::SetData method with the CFSTR_PERFORMEDDROPEFFECT format set to DROPEFFECT_MOVE. ...
mbolp's user avatar
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I'm building a Windows Service in C# (.NET Framework 4.8) that should automatically import sales receipts from XML files into Comarch ERP Optima. The service is supposed to create a COM session using ...
adrianmatysiak1916's user avatar
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2 answers
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Though I've got built example from msdn-docs on how to Expose .NET Core components to COM with C:\COMServerDemo>dotnet build build.proj after changing in *.proj files of Server & Client <...
JeeyCi's user avatar
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I am trying to update Pivot Tables in Excel using PowerShell. The PivotTable is based on a normal range, and I'm writing: $newSource = "'Sheet1'!R1C1:R${lastRow}C7" $pivotSheetNames = @(&...
Pete1230z's user avatar
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1 vote
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I am creating a COM server using native C++. And I need to use void pointer as a parameter type in the server interface. [ dual, oleautomation, uuid(E62A1CB0-86A7-40AE-AFE4-75562C32A498) ] ...
Stanislav Panferov's user avatar
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Yes, you read the title correctly - this is an issue that only occurs when UAC is off (for example, with the built-in Administrator account on Windows Server systems). Repro steps: Create a COM-...
Heinzi's user avatar
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1 vote
1 answer
170 views

I defined the following IDispatch-only interface in my C# project: [ComVisible(true)] [InterfaceType(ComInterfaceType.InterfaceIsIDispatch)] [Guid("3532C4E8-D320-487C-8BD4-...
Gabboxl's user avatar
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1 vote
1 answer
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I would like to convert Windows status constants to human-readable error messages, and I seem to be failing. The following code is little helpful: #include <Windows.h> #include <comdef.h> ...
bers's user avatar
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2 answers
173 views

I have a series of functions and objects in C++ that will be called/invoked by Lua, I already have existing code that does exactly this (using the MFC COM dispatch) for VBScript (see the bottom of ...
N Krueger's user avatar
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2 votes
1 answer
119 views

I try to set an excel column to autofit width using com automation. I get an access violation when calling Invoke. I know that the range that points to the column is ok, because I can use it to change ...
vals's user avatar
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2 votes
0 answers
80 views

I'm integrating in Java with a DLL that allows me to add an instance to be notified. I have tried several solutions and in none of them was the COM object able to notify me. I suspect that the way I ...
Kildary Klein's user avatar
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If you navigate Explorer into a shell namespace extension, and then navigate away from the namespace extension into some other folder branch, then Explorer will release all instances of the namespace ...
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I have recently upgraded my application from Delphi 7 to Delphi 10.4. My application launches VBA 6.5, which kind of is hosted within Delphi (i.e. it vanishes along with the main application). I am ...
Ashok kumar's user avatar
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1 vote
1 answer
139 views

I've tried a few different ways of enumerating redirected USB devices using the Remote Desktop ActiveX control in PowerShell but haven't been able to figure out a way to achieve this. That is, USB ...
Paul π's user avatar
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I am trying to develop a very basic HelloWorld example, where an unpackaged (exe based) client is trying to talk to a out of proc COM server which is packaged as an msix. I am using windows template ...
coda's user avatar
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42 views

I have a c# COM wrapper class [Guid('XXX')] public Class A : CoClassWithEvents { public event OnDoMeDelegate OnDoMe; public void CallMe(){ } } idl file coclass CoClassWithEvents { ...
Ibrahim Mahmoud's user avatar
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I am writing a python program and need to interact with existing com dll objects written in C++. I can access the Dispatch interface of the dll using the comtypes module and get the correct function ...
James Johns's user avatar
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2 votes
1 answer
84 views

I have a lot of experience in C++ but am new to COM, MFC and MIDL. I'm trying to create a 32 bit COM server from an IDL file supplied by a third party. The IDL section looks like this: [uuid(3CA6AC95-...
Stephen's user avatar
  • 61
-1 votes
3 answers
345 views

I'm using NLog library for logging purposes. I have declared the following class: public partial class FenetrePrincipale : Form { #region NLog private static readonly Logger logger = ...
Dominique's user avatar
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