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SysTray from .NET
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| Total Hit (1687) |
The .NET Framework includes a NotifyIcon component but this unfortunately doesn't support InfoTip (balloon) notification; at least, not in v1.0 of the Framework. This sample provides an equivalent class which uses the Shell code directly to allow all the tooltip facilities to be used.
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Associations
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| Total Hit (1609) |
Applications such as WinZip add new items to Explorer's File and context menus for all files and folders on the system. Although WinZip uses Shell Extensions to achieve this, it is much easier to do using verbs. This article demonstrates how to use the .NET Registry classes to add new shortcut verbs
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Creating and Modifying Shortcuts
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| Total Hit (1735) |
This article provides a .NET class wrapper around the ShellLink object which enables you to read, create and modify Shortcuts under any version of Windows. As a bonus, you also get an Icon Picker implementation which demonstrates how to extract all the Windows icon resources from any executable or D
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System Image List
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| Total Hit (2515) |
Although you can easily extract copies of icons for any file from the Shell using the SHGetFileInfo call, if you need to be able to display the icon for a large number of files you can end up with too many icons and run out of resources. The System Image List uses an intelligent caching technique to
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Getting File Icons Using The Shell
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| Total Hit (1493) |
The .NET Framework doesn't provide much in the way for classes to interact with the Shell. This article provides a simple class which wraps the Shell's SHGetFileInfo to extract large and small icons plus the display name and file type for any file.
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.NET Button ListBar Control
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| Total Hit (2250) |
The Button ListBar control provides an emulation of the ListBar provided in the Windows Add/Remove Programs window. Under XP it uses the UxTheme API to draw parts of the toolbar, and degrades to use standard GDI drawing calls when used on earlier OS versions. Both C# and VB.NET versions of the same
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VS.NET ListBar Control
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| Total Hit (1193) |
This control uses the Outlook Style ListBar control as a basis for a full implementation of a Visual Studio-style List Bar which holds lists of controls. Bars and items can be dragged around the control, and items can be dragged, pressed or double-clicked to add the item to an object. For additional
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Skinned ListBar
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| Total Hit (1948) |
This article demonstrates overriding the drawing routines in the Outlook Style ListBar to create a new ListBar which inherits the behaviour of the original control but draws in a much customised way.
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.NET Outlook Style ListBar Control
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| Total Hit (1808) |
The .NET ListBar control aims to provide the most accurate reproduction of the Microsoft Outlook bar control. All the features of the Outlook bar control are supported and more: in particular the control provides nicer drag-drop operation, has more display modes and provides an extensible object mod
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Cancellable In-Place Edit Popups
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| Total Hit (1638) |
Controls like the ListView and the Outlook ListBar allow you to edit items in place by either double-clicking them or through a context UI feature such as a menu. This article provides a class which helps with the tricky parts of implementing in-place editing, and demonstrates how to use it to creat
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Use .NET Forms as Popup Windows
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| Total Hit (2275) |
This article provides a reusable class which you can use to convert a form into a popup which works in the same way as the drop-down portion of a ListBox or the popup controls for picking colours or tables in Office. In addition to wrapping all the functionality you need to ensure the popup is cance
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Floating Controls, Tooltip-style
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| Total Hit (2361) |
This article started when I was implementing the VS.NET ListBar control. If you move the mouse over an item whose text is partially obscured in the VS.NET ListBar, a popup appears to show more of the text. The same technique is also implemented in the ListView and TreeView controls using a ToolTip.
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Font ComboBox
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| Total Hit (2505) |
This control adds a thin wrapper around the Icon ComboBox to convert it into an Office-style font picker control. Features include a most-recently used font section, initialisation on a background thread, auto-complete and built-in detection of non-character fonts like Wingdings (VB.NET and C# code
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Virtual ListBox
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| Total Hit (2161) |
Virtual List Boxes can be used if you ever need to try and show a list containing a vast quantity of data. Instead of adding physical objects to the ListBox, instead you tell it how many rows there should be, and it simply defers all drawing of items to the owner of the box using owner draw item met
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Adding an Icon or Control to a TextBox or ComboBox
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| Total Hit (2575) |
The standard .NET Framework ComboBox does not support an icon in the text box section of the control. This article presents a class which can be used to show an icon, a control or a custom-drawn image into any TextBox or ComboBox (VB.NET and C# code provided).
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Reusing The ComboBox DropDown
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| Total Hit (1046) |
Normally, the combo box drop-down portion only appears underneath the combo box part of a control. However, using an age-old Windows hack you can get at the handle of the drop-down List and move it to any position you like on screen. This article provides a reusable class for manipulating the drop-d
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Flat Style Combo Boxes
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| Total Hit (2109) |
This article provides a class which you can attach to any .NET ComboBox control to allow it to render with a VS.NET or Office XP flat style by subclassing the messages associated with the control (VB.NET and C# code provided).
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vbAccelerator IconComboBox Control
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| Total Hit (1546) |
One of the more notable omissions from the set of .NET Framework Windows controls is a Combo Box which supports icons, despite a control of this type being used to good effect in Explorer and IE. This article provides a reusable control which extends the standard ComboBox to allow you to associate i
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Sophisticated Drag-Drop Images
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| Total Hit (2133) |
The standard .NET Framework drag-drop functionality provides a cursor to indicate that a drag-drop function is in progress. This article demonstrates how to add an image of the object being dragged to the drag-drop control, in the same way that Explorer does using the ImageList APIs.
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Highlighting and Shadowing Image List Images
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| Total Hit (1985) |
For some reason, the System.Windows.Forms.ImageList does not provide a Draw method that allows an image to be drawn highlighted or selected, even though this is part of the basic functionality of the underlying ComCtl32 ImageList. This article provides a method of drawing selected and lightened imag
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Simple Interprocess Communications using WM_COPYDATA
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| Total Hit (2301) |
Whilst the .NET Framework has some very sophisticated techniques for communication between processes on different machines, it doesn't provide so much support for communication between processes on the same machine. The Windows API offers a rich set of inter-process communications features, at vario
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Adding Mouse Gesture Support to .NET Windows Applications
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| Total Hit (1969) |
Use of mouse gestures to control application is becoming increasingly common in the more sophisticated web browsers. This sample demonstrates how you can support a range of mouse gestures in .NET Windows Forms Applications by implementing an IMessageFilter. VB.NET and C# code provided.
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Receiving and Using Clipboard Change Notifications
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| Total Hit (2248) |
Clipboard support in the .NET Framework is fairly comprehensive, however, support for notification of clipboard changes is not provided. Knowing when the clipboard changes makes building an application with a toolbar containing a Paste button simpler; it also enables you to store a history of clipbo
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Subclassing In .NET
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| Total Hit (1967) |
In VB 5 and 6, subclassing was something of a pain. To do it at all you needed a raft of cunning hacks and had to keep a very careful track on which object was subclassing what. All of that pain is removed in .NET with the System.Windows.Forms.NativeWindow class, which makes it almost trivial to pro
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HotKeyForm
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| Total Hit (1856) |
One of the Windows API features which isn't included in the .NET Framework is setting up and receiving notifications from system-wide HotKeys. This article presents an extended version of System.Windows.Forms.Form which adds HotKey functionality.
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Efficiently Searching a Sorted Array
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| Total Hit (1528) |
Pop quiz, hotshot: you have an array of strings consisting of the various IP addresses of the visitors of the last 24 hours to your Web site. You want to determine if your site has been visited by the IP address 231.34.124.3. How can you quickly figure out if the string "231.34.124.3" is in the arra
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