[VBnet API Index] Constants H

VBnet Constants Reference
Constants - H

HC_ACTION = 0	SetWindowsHookEx: Detect Caps/Numlock/Scrollock via System-wide Keyboard Hook
HC_ACTION = 0&	SetWindowsHookEx: Trapping Special Key Events using Low Level Hooks
HCBT_ACTIVATE = 5	SetWindowsHookEx: 'Self-Closing' Message Box using a VB Timer SetWindowsHookEx: 'Self-Closing' Message Box using SetTimer SetWindowsHookEx: Centre the API Message Box SetWindowsHookEx: Customize the API Message Box
HDF_BITMAP = &H2000	CreateWindowEx: Create the Common Control Header SendMessage: Add Images to a ListView Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDF_BITMAP_ON_RIGHT = &H1000	CreateWindowEx: Create the Common Control Header SendMessage: Add Images to a ListView Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDF_CENTER = 2	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDF_IMAGE = &H800	CreateWindowEx: Create the Common Control Header SendMessage: Add Images to a ListView Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDF_JUSTIFYMASK = &H3	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDF_LEFT = 0	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDF_OWNERDRAW = &H8000&	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDF_RIGHT = 1	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDF_RTLREADING = 4	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDF_STRING = &H4000	CreateWindowEx: Create the Common Control Header SendMessage: Add Images to a ListView Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDI_BITMAP = &H10	CreateWindowEx: Create the Common Control Header SendMessage: Add Images to a ListView Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDI_DI_SETITEM = &H40	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDI_FORMAT = &H4	CreateWindowEx: Create the Common Control Header SendMessage: Add Images to a ListView Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDI_HEIGHT = HDI_WIDTH	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDI_IMAGE = &H20	CreateWindowEx: Create the Common Control Header SendMessage: Add Images to a ListView Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDI_LPARAM = &H8	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDI_ORDER = &H80	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDI_TEXT = &H2	CreateWindowEx: Create the Common Control Header SendMessage: Add Images to a ListView Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDI_WIDTH = &H1	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDM_DELETEITEM = (HDM_FIRST + 2)	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDM_FIRST = &H1200	CreateWindowEx: Create the Common Control Header SendMessage: Add Images to a ListView Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDM_GETIMAGELIST = (HDM_FIRST + 9)	CreateWindowEx: Create the Common Control Header SendMessage: Add Images to a ListView Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDM_GETITEM = (HDM_FIRST + 3)	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDM_GETITEMCOUNT = (HDM_FIRST + 0)	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDM_GETITEMRECT = (HDM_FIRST + 7)	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDM_HITTEST = (HDM_FIRST + 6)	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDM_INSERTITEM = (HDM_FIRST + 1)	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDM_LAYOUT = (HDM_FIRST + 5)	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDM_ORDERTOINDEX = (HDM_FIRST + 15)	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDM_SETIMAGELIST = (HDM_FIRST + 8)	CreateWindowEx: Create the Common Control Header SendMessage: Add Images to a ListView Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDM_SETITEM = (HDM_FIRST + 4)	CreateWindowEx: Create the Common Control Header SendMessage: Add Images to a ListView Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDN_BEGINDRAG = (HDN_FIRST - 10)	WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDN_BEGINTRACK = (HDN_FIRST - 6)	WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDN_DIVIDERDBLCLICK = (HDN_FIRST - 5)	WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDN_ENDDRAG = (HDN_FIRST - 11)	WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDN_ENDTRACK = (HDN_FIRST - 7)	WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDN_FIRST = -300&	WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader WM_NOTIFY: Track Highlighted ListView Column Width Changes via Subclassing
HDN_GETDISPINFO = (HDN_FIRST - 9)	WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDN_ITEMCHANGING = (HDN_FIRST - 0)	WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader WM_NOTIFY: Track Highlighted ListView Column Width Changes via Subclassing
HDN_ITEMCLICK = (HDN_FIRST - 2)	WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDN_ITEMDBLCLICK = (HDN_FIRST - 3)	WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDN_TRACK = (HDN_FIRST - 8)	WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDS_BUTTONS = &H2	CreateWindowEx: Create the Common Control Header SendMessage: Set ListView Flat Header Style WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDS_DRAGDROP = &H40	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDS_FULLDRAG = &H80	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDS_HIDDEN = &H8	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDS_HORZ = &H0	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HDS_HOTTRACK = &H4	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HEADER32_CLASS = "SysHeader32"	CreateWindowEx: Create the Common Control Header
HEADER32_CLASS As String = "SysHeader32"	WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HEADER_CLASS = "SysHeader"	CreateWindowEx: Create the Common Control Header
HEADER_CLASS As String = "SysHeader"	WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HEAP_GENERATE_EXCEPTIONS = &H4	Netbios: Determine Local Adapter MAC Address Netbios: Determine Local Adapter MAC Addresses through LANA Enumeration
HEAP_ZERO_MEMORY = &H8	InitializeSecurityContext: Authenticate User via the NT Challenge Process Netbios: Determine Local Adapter MAC Address Netbios: Determine Local Adapter MAC Addresses through LANA Enumeration
HHT_ABOVE = &H100	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HHT_BELOW = &H200	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HHT_NOWHERE = &H1	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HHT_ONDIVIDER = &H4	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HHT_ONDIVOPEN = &H8	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HHT_ONHEADER = &H2	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HHT_TOLEFT = &H800	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HHT_TORIGHT = &H400	CreateWindowEx: Create the Common Control Header WM_NOTIFY: Detect Sizing Notifications from a ListView ColumnHeader
HKEY_CLASSES_ROOT = &H80000000	GetSecurityInfo: Obtaining Registry Key Owner Information RegEnumKeyEx: Retrieve the Registered File Associations RegQueryValueEx: Retrieve Email Account Info (Outlook) RegSetValueEx: Create a Registered File Association RegSetValueEx: Create an Application Launch Button on the IE Toolbar RegSetValueEx: Forcing a Refresh of Shell Icon Cache
HKEY_CURRENT_CONFIG = &H80000005	GetSecurityInfo: Obtaining Registry Key Owner Information
HKEY_CURRENT_USER = &H80000001	DoFileDownload: Customize the IE Download Dialog GetSecurityInfo: Obtaining Registry Key Owner Information RegEnumKeyEx: POP3, SMTP, NNTP and LDAP Account Info (Outlook Express) RegQueryValueEx: Retrieve Email Account Info (Outlook) RegQueryValueEx: User Default Email Address (Internet Account Manager) RegSetValueEx: Create a Registered File Association RegSetValueEx: Create an Application Launch Button on the IE Toolbar RegSetValueEx: Forcing a Refresh of Shell Icon Cache TransparentBlt: Simulating Microsoft's 'Windows Messenger' Notifications - Step 2: The Calling Form
HKEY_LOCAL_MACHINE = &H80000002	GetSecurityInfo: Obtaining Registry Key Owner Information GetSystemInfo: System Processor Information RegEnumKeyEx: Retrieve Windows Uninstallable Application List RegEnumValue: Enumerate Registered Shared DLLs RegQueryValueEx: Determine Active Internet Dialup Connections RegQueryValueEx: Determine the User's Default Mail Client RegQueryValueEx: Determine Windows Last Shutdown Date and Time RegQueryValueEx: Enumerate Registry Time Zone Values RegQueryValueEx: Identify Time Zones by Time Zone Bias RegQueryValueEx: Windows Registered Owner Information RegSetValueEx: Create a Registered File Association RegSetValueEx: Create an Application Launch Button on the IE Toolbar RegSetValueEx: Forcing a Refresh of Shell Icon Cache
HKEY_USERS = &H80000003	GetSecurityInfo: Obtaining Registry Key Owner Information RegQueryValueEx: Determine Active Internet Dialup Connections RegSetValueEx: Create a Registered File Association RegSetValueEx: Create an Application Launch Button on the IE Toolbar RegSetValueEx: Forcing a Refresh of Shell Icon Cache
HORZRES = 8	BitBlt: Present a Non-Selectable 'No Data' Picture in a ListBox ChangeDisplaySettings: Change Display Resolution CreateEnhMetaFile: Saving a PrintScreen as a Windows Enhanced Metafile EnumDisplaySettings: Enumerate Available Display Resolutions GetDeviceCaps: Display Resolution, Refresh Rate and Colour Depth GetDeviceCaps: Display Resolution, Refresh Rate and Colour Depth
HORZSIZE = 4	CreateEnhMetaFile: Saving a PrintScreen as a Windows Enhanced Metafile GetDeviceCaps: Display Resolution, Refresh Rate and Colour Depth
HTBOTTOMRIGHT = 17	ReleaseCapture: Simulating a Working Size-Grip on a VB Form SendMessage: Creating a Scrollable Viewport to Simulate a Scrollable Form SendMessage: Move Controls to Simulate Form Scrolling
HTCAPTION = 2	WM_NCHITTEST: Simulating a Non-Client Action to Move a Form
HTCLIENT = 1	WM_NCHITTEST: Simulating a Non-Client Action to Move a Form
HWND_BROADCAST = &HFFFF&	RegSetValueEx: Forcing a Refresh of Shell Icon Cache SetDefaultPrinter: Changing Windows' Default Printer SetLocaleInfo: Change System Long and Short Date Formats WriteProfileString: Changing Windows' Default Printer
HWND_DESKTOP = 0	SHQueryRecycleBin: Recycle Bin Management
HWND_NOTOPMOST = -2	SetWindowPos: Create a Topmost Window SetWindowPos: How to Create a 'Splash Screen' in Visual Basic
HWND_TOPMOST = -1	CreateWindowEx: 21st Century ToolTips for VB- The Basics SetWindowPos: Create a Topmost Window SetWindowPos: How to Create a 'Splash Screen' in Visual Basic TransparentBlt: Simulating Microsoft's 'Windows Messenger' Notifications - Step 3: The Notification Form WM_TIMECHANGE: Detect System Changes to the Date/Time

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