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  • Users: arnoldw
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  1. arnoldw

    Accessing USB-device: How to determine lpFileName in CreateFile call

    I am trying to communicate (send and receive ASCII-characters) with a USB-barcode printer. In order to get a handle to the device I believe I have to call CreateFile and it has the following prototype: HANDLE WINAPI CreateFile( __in LPCTSTR lpFileName, __in DWORD dwDesiredAccess...
    • arnoldw
    • Thread
    • Replies: 2
    • Forum: C++
  2. arnoldw

    How can I get gotFocus events from a user form?

    I have user form in a macro in Excel. I want the user form to generate gotFocus events when it gets focus. Is this possible?
  3. arnoldw

    How do I call an instance method from an exported method in a MFC DLL?

    I have created a dll in MFC using the Visual Studio wizard and the dll exports a function called MyExportedMethod: #include "stdafx.h" #include "DllProblem.h" BEGIN_MESSAGE_MAP(CDllProblemApp, CWinApp) END_MESSAGE_MAP() CDllProblemApp::CDllProblemApp() { } CDllProblemApp theApp; BOOL...
    • arnoldw
    • Thread
    • Replies: 2
    • Forum: C++
  4. arnoldw

    Office Add-in: Can Excel worksheet be parent of a Windows Form?

    I have created a Shared Office add-in for Excel. The add-in works great and in my C# code I create a Windows Form (System.Windows.Forms.Form). Can I make this Form be a child of the Excel window itself? Basically, I want to make sure the dialog is always on top of the Excel window.
  5. arnoldw

    How to write a very simple ActiveX component with a GUI

    I would like to write a very simple custom ActiveX component with one button and one checkbox on it. I will put this ActiveX component into a user form in an Excel macro and I want this ActiveX component to communicate (invoke methods and generate events) with the VBA code that embeds it, based...
    • arnoldw
    • Thread
    • Replies: 0
    • Forum: C++
  6. arnoldw

    How do I invoke methods in a custom made ActiveX component?

    I have written a custom ActiveX component and I inserted it into a user from in Excel. How do I go about to invoke methods that the ActiveX component exports? Also, how do I subscribe to events from the ActiveX component? If anybody could refer me to an online tutorial or provide snippets of...
  7. arnoldw

    ActiveX component written in C#

    I would like to write an ActiveX component in C#. I followed the following instructions: http://www.codeproject.com/cs/miscctrl/exposingdotnetcontrols.asp When I test this ActiveX component using tstcon32.exe, the component runs fine, with the exception that nothing happens when I invoke the...
  8. arnoldw

    Export method and create interrupts from a .NET Component

    I have created a custom made .NET Component (in Visual Studio .NET 2003) that contains a regular button and a checkbox. I build a .dll file and then use the .NET Component in a LabVIEW application. In LabVIEW I can get a long list of methods that the .NET Component supports (BeginInvoke(Delegate...

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