[VBnet Code Library] Subclassing Index

	Subclassing Methods dealing with callbacks, enumeration, hooks and subclassing are for VB5/VB6 only. Updated Monday December 26, 2011
Category	Topic
Balloon Tips (InfoTips) vb6 vb5	Shell_NotifyIcon: Use SetTimer to Define Balloon Tip Life A subclassed Balloon Tip demo to respond to balloon messages, with a bonus self-closing timer using the SetTimer API. Jun 17.2004 Shell_NotifyIcon: Display Systray Balloon Tips How to add Balloon Tips to a systray application running under Windows 2000 or Windows XP. Jul 7.2002 Shell_NotifyIcon: Respond to Systray Balloon Tip Clicks Subclassing to respond to Balloon Tip messages. Jan 7.2003

Controls vb6 vb5	WM_CTLCOLORSTATIC: Change the BackColor of a Slider Subclassing to change the background colour of a VB slider control. Includes code to enable/disable the slider's ToolTips. Apr 7.2004 WM_CONTEXTMENU: Kill the Default Combo Box Context Menu Eliminating the combo edit context menu via subclassing. Dec 19.2000 WM_CONTEXTMENU: Kill the Default Text Box Context Menu Eliminating the default textbox context menu via subclassing. Jun 6.1999 WM_DRAWITEM: Set Command Button ForeColor Now command buttons can have their own button text colour. Jul 12.1999 WM_VSCROLL: Subclassing Listview Scrollbar Messages Demonstrates detecting scrollbar action within a ListView, and scrolling a second control, modifying the scroll message, or discarding the message Aug 29.2000 WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader Detect column resizing, header repositioning, clicks and double clicks on the ListView header. Aug 22.1999 WM_PAINT: Subclassing to Create a Flat Combo Box Use the DrawEdge API to alter the appearance of a combo box. Nov 24.1999 WM_LBUTTONDOWN: Substitute a Tabbed List for a Combo's Dropdown List Trapping a combo's dropdown and substituting a standard List control supporting tab stops. Mar 16.2001 WM_LBUTTONDOWN: Substitute a ListView for a Combo's Dropdown List Trapping a combo's dropdown and substituting a standard ListView control. Mar 16.2001 WM_LBUTTONDOWN: Using a Combo in a MSFlexGrid to Select Data Add automatic resizing to a combo/flexgrid. Feb 8.1999

Date/Time vb6 vb5	WM_TIMECHANGE: Detect System Changes to the Date/Time Subclass a form to receive date/time change notifications, or notify other windows that it has changed. June 8.1999

Forms vb6 vb5	WM_SYSCOMMAND: Change and Respond to a Customized System Menu Modify and react to new items added to a System Menu. Apr 17.1999 WM_SIZING: Maintain Form Aspect Ratio During Resizing Detecting form resizing and changing the window rect to assure aspect ratio is maintained. Jan 25.2002 Subclassing Form Messages: WM_ACTIVATEAPP: Detect Application Activation State Detecting when an application gains and looses focus to another Windows app. Jun 6.1999 Subclassing Form Messages: WM_NCHITTEST: Simulating a Non-Client Action to Move a Form Click anywhere on the form to reposition it on screen. Jul 1.1998 WM_GETMINMAXINFO: Restrict Form Resizing Code to restrict resizing of a form to a size you specify. Jul 1.1998 WM_HOTKEY: System-Wide Keyboard Trapping Create and respond to a system-wide hotkey hook. Jul 16.1999

Shell vb6 vb5	SHChangeNotifyRegister: Receive Shell Change Notifications Track additions, deletions and changes to the physical and virtual file system. Sep 13.1998

System Tray vb6 vb5	Shell_NotifyIcon: Animate the System Tray Icon Creating a system tray icon with timed animation. Jan 29.2002 Shell_NotifyIcon: Use SetTimer to Define Balloon Tip Life A subclassed Balloon Tip demo to respond to balloon messages, with a bonus self-closing timer using the SetTimer API. Jun 17.2004 Shell_NotifyIcon: Display Systray Balloon Tips How to add Balloon Tips to a systray application running under Windows 2000 or Windows XP. Jul 7.2002 Shell_NotifyIcon: Respond to Systray Balloon Tip Clicks Subclassing to respond to Balloon Tip messages. Jan 7.2003 Shell_NotifyIcon: Add Icon to Windows System Tray Add and respond to an icon placed in the System Tray. June 6.1999 Shell_NotifyIcon: Respond to Systray Icon/Menu Interaction Add and respond to an icon placed in the System Tray. Demos using the systray to display drive statistics via GetDriveSpaceFreeEx. Jun 6.1999 Shell_NotifyIcon: Respond to Systray Icon/Menu Interaction in a MDI App Add and respond to an icon placed in the System Tray in a MDI application. Demos using the systray to display drive statistics via GetDriveSpaceFreeEx in MDI Child Windows. Jul 31.1999 TransparentBlt: Simulating Microsoft's 'Windows Messenger' Notifications Aug 14.2002 How to create and show a small form that appears and behaves like a notification window displayed by the Microsoft Windows Messenger application. Shell_NotifyIcon: Windows Systray NOTIFYICONDATA Overview Discussion of determining shell version to utilize systray code across all platforms. Jan 14.2003

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