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Anything's Possible

Ever heard a developer say "it can't be done?" It is one of my biggest pet peeves. The truth is, it can be done. If you approach a problem pragmatically and put enough effort into it, understanding the root issues, and not settling for sub-pa

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  • Blog Post: Interop with PROPVARIANTs in .NET

    Introduction When it comes interop, .NET has solved most of the hard problems. However, if you've worked with COM interfaces that return or take PROPVARIANTs as parameters, you may have noticed that there isn't much support for this union'd struct type. I came across one such interface, and needed...
  • Blog Post: Interop with PROPVARIANTs in .NET

    When it comes interop, .NET has solved most of the hard problems. However, if you've worked with COM interfaces that return or take PROPVARIANTs as parameters, you may have noticed that there isn't much support for this union'd struct type. I came across one such interface, and needed a good way to interop...
  • Blog Post: PropVariant.cs

    Back to Interop with PROPVARIANTs in .NET namespace System.Runtime.InteropServices.ComTypes { using System; using System.Runtime.InteropServices; /// <summary> /// Represents the OLE struct PROPVARIANT. /// </summary> /// <remarks> /// Must call Clear when finished to avoid memory...
  • Blog Post: Shell Style Drag and Drop in .NET - Part 3

    In Part 1, Shell Style Drag and Drop in .NET (WPF and WinForms) , I opened up the discussion about implementing a nice Shell style drag image, like that of Windows Explorer, in C#. This involved exposing a couple of COM interfaces to .NET, as well as implementing the COM IDataObject interface. In Shell...
  • Blog Post: Shell Style Drag and Drop in .NET - Part 2

    Last week, in Shell Style Drag and Drop in .NET (WPF and WinForms) , I looked at hooking up the COM interfaces necessary to implement drag images using the Windows Shell. This week, I'm going to introduce some .NET 3.5 extensions (which can be easily converted into .NET 3.0 and earlier static helper...
  • Blog Post: Shell Style Drag and Drop in .NET (WPF and WinForms)

    If you've worked with .NET drag and drop, you may have noticed that the pretty images that Windows Explorer paints while dragging items does not come for free. In fact, by default, .NET will give you a rather ugly black and white cursor with the drag effect indicator (copy, move, none, etc). I wasn't...
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