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Enum WindowsMessages

All possible windows messages

Namespace: Dapplo.Windows.Messages
Assembly: Dapplo.Windows.Messages.dll
Syntax
public enum WindowsMessages : uint

Fields

Name Description
CB_ADDSTRING
CB_DELETESTRING
CB_DIR
CB_FINDSTRING
CB_FINDSTRINGEXACT
CB_GETCOMBOBOXINFO
CB_GETCOUNT
CB_GETCURSEL
CB_GETDROPPEDCONTROLRECT
CB_GETDROPPEDSTATE
CB_GETDROPPEDWIDTH
CB_GETEDITSEL
CB_GETEXTENDEDUI
CB_GETHORIZONTALEXTENT
CB_GETITEMDATA
CB_GETITEMHEIGHT
CB_GETLBTEXT
CB_GETLBTEXTLEN
CB_GETLOCALE
CB_GETTOPINDEX
CB_INITSTORAGE
CB_INSERTSTRING
CB_LIMITTEXT
CB_MSGMAX
CB_MSGMAX_OLD
CB_MULTIPLEADDSTRING
CB_RESETCONTENT
CB_SELECTSTRING
CB_SETCURSEL
CB_SETDROPPEDWIDTH
CB_SETEDITSEL
CB_SETEXTENDEDUI
CB_SETHORIZONTALEXTENT
CB_SETITEMDATA
CB_SETITEMHEIGHT
CB_SETLOCALE
CB_SETTOPINDEX
CB_SHOWDROPDOWN
EM_CANUNDO
EM_CHARFROMPOS
EM_EMPTYUNDOBUFFER
EM_FMTLINES
EM_GETFIRSTVISIBLELINE
EM_GETHANDLE
EM_GETIMESTATUS
EM_GETLIMITTEXT
EM_GETLINE
EM_GETLINECOUNT
EM_GETMARGINS
EM_GETMODIFY
EM_GETPASSWORDCHAR
EM_GETRECT
EM_GETSEL
EM_GETTHUMB
EM_GETWORDBREAKPROC
EM_LIMITTEXT
EM_LINEFROMCHAR
EM_LINEINDEX
EM_LINELENGTH
EM_LINESCROLL
EM_MSGMAX
EM_POSFROMCHAR
EM_REPLACESEL
EM_SCROLL
EM_SCROLLCARET
EM_SETFONT
EM_SETHANDLE
EM_SETIMESTATUS
EM_SETMARGINS
EM_SETMODIFY
EM_SETPASSWORDCHAR
EM_SETREADONLY
EM_SETRECT
EM_SETRECTNP
EM_SETSEL
EM_SETTABSTOPS
EM_SETWORDBREAK
EM_SETWORDBREAKPROC
EM_UNDO
LB_ADDFILE
LB_ADDSTRING
LB_ADDSTRINGLOWER
LB_ADDSTRINGUPPER
LB_DELETESTRING
LB_DIR
LB_FINDSTRING
LB_FINDSTRINGEXACT
LB_GETANCHORINDEX
LB_GETCARETINDEX
LB_GETCOUNT
LB_GETCURSEL
LB_GETHORIZONTALEXTENT
LB_GETITEMDATA
LB_GETITEMHEIGHT
LB_GETITEMRECT
LB_GETLISTBOXINFO
LB_GETLOCALE
LB_GETSEL
LB_GETSELCOUNT
LB_GETSELITEMS
LB_GETTEXT
LB_GETTEXTLEN
LB_GETTOPINDEX
LB_INITSTORAGE
LB_INSERTSTRING
LB_INSERTSTRINGLOWER
LB_INSERTSTRINGUPPER
LB_ITEMFROMPOINT
LB_MSGMAX
LB_MSGMAX_OLD
LB_MULTIPLEADDSTRING
LB_RESETCONTENT
LB_SELECTSTRING
LB_SELITEMRANGE
LB_SELITEMRANGEEX
LB_SETANCHORINDEX
LB_SETCARETINDEX
LB_SETCOLUMNWIDTH
LB_SETCOUNT
LB_SETCURSEL
LB_SETHORIZONTALEXTENT
LB_SETITEMDATA
LB_SETITEMHEIGHT
LB_SETLOCALE
LB_SETSEL
LB_SETTABSTOPS
LB_SETTOPINDEX
LBCB_CARETOFF
LBCB_CARETON
LBCB_ENDTRACK
LBCB_STARTTRACK
MM_DRVM_CLOSE
MM_DRVM_DATA
MM_DRVM_ERROR
MM_DRVM_OPEN
MM_JOY1BUTTONDOWN
MM_JOY1BUTTONUP
MM_JOY1MOVE

See MM_JOY1MOVE message

MM_JOY1ZMOVE
MM_JOY2BUTTONDOWN
MM_JOY2BUTTONUP
MM_JOY2MOVE
MM_JOY2ZMOVE
MM_MCINOTIFY

See MM_MCINOTIFY message

MM_MCISIGNAL
MM_MIM_CLOSE
MM_MIM_DATA
MM_MIM_ERROR
MM_MIM_LONGDATA
MM_MIM_LONGERROR
MM_MIM_MOREDATA
MM_MIM_OPEN
MM_MIXM_CONTROL_CHANGE
MM_MIXM_LINE_CHANGE
MM_MOM_CLOSE
MM_MOM_DONE
MM_MOM_OPEN
MM_MOM_POSITIONCB
MM_STREAM_CLOSE
MM_STREAM_DONE
MM_STREAM_ERROR
MM_STREAM_OPEN
MM_WIM_CLOSE
MM_WIM_DATA
MM_WIM_OPEN
MM_WOM_CLOSE
MM_WOM_DONE
MM_WOM_OPEN
MN_FIRST
WM_ACTIVATE
WM_ACTIVATEAPP
WM_AFXFIRST
WM_AFXLAST
WM_APP
WM_APPCOMMAND

Notifies a window that the user generated an application command event, for example, by clicking an application command button using the mouse or typing an application command key on the keyboard. WM_APPCOMMAND message

WM_APPLICATION_STRING

From this value to

WM_ASKCBFORMATNAME

Sent to the clipboard owner by a clipboard viewer window to request the name of a CF_OWNERDISPLAY clipboard format. A window receives this message through its WindowProc function. See WM_ASKCBFORMATNAME message

WM_BRIGHTNESSCHANGED
WM_BSDRDATA
WM_CANCELJOURNAL
WM_CANCELMODE
WM_CAPTURECHANGED
WM_CHANGECBCHAIN

Sent to the first window in the clipboard viewer chain when a window is being removed from the chain. A window receives this message through its WindowProc function. See WM_CHANGECBCHAIN message

WM_CHANGEUISTATE
WM_CHAR
WM_CHARTOITEM
WM_CHILDACTIVATE
WM_CLEAR

An application sends a WM_CLEAR message to an edit control or combo box to delete (clear) the current selection, if any, from the edit control. WM_CLEAR message

WM_CLIPBOARDUPDATE

See WM_CLIPBOARDUPDATE message

WM_CLOSE
WM_COMMAND
WM_COMMNOTIFY
WM_COMPACTING
WM_COMPAREITEM
WM_CONTEXTMENU
WM_COPY

An application sends the WM_COPY message to an edit control or combo box to copy the current selection to the clipboard in CF_TEXT format. WM_COPY message

WM_COPYDATA
WM_CREATE

Sent when an application requests that a window be created by calling the CreateWindowEx or CreateWindow function. (The message is sent before the function returns.) The window procedure of the new window receives this message after the window is created, but before the window becomes visible. A window receives this message through its WindowProc function. WM_CREATE message

WM_CTLCOLORBTN
WM_CTLCOLORDLG
WM_CTLCOLOREDIT
WM_CTLCOLORLISTBOX
WM_CTLCOLORMSGBOX
WM_CTLCOLORSCROLLBAR
WM_CTLCOLORSTATIC
WM_CUT

An application sends a WM_CUT message to an edit control or combo box to delete (cut) the current selection, if any, in the edit control and copy the deleted text to the clipboard in CF_TEXT format. WM_CUT message

WM_DEADCHAR
WM_DELETEITEM
WM_DESKTOPNOTIFY
WM_DESTROY

Sent when a window is being destroyed. It is sent to the window procedure of the window being destroyed after the window is removed from the screen. This message is sent first to the window being destroyed and then to the child windows (if any) as they are destroyed. During the processing of the message, it can be assumed that all child windows still exist. A window receives this message through its WindowProc function. WM_DESTROY message

WM_DESTROYCLIPBOARD

Sent to the clipboard owner when a call to the EmptyClipboard function empties the clipboard. A window receives this message through its WindowProc function. WM_DESTROYCLIPBOARD message

WM_DEVICECHANGE
WM_DEVMODECHANGE
WM_DISPLAYCHANGE

See WM_DISPLAYCHANGE message

WM_DPICHANGED

Sent when the effective dots per inch (dpi) for a window has changed. The DPI is the scale factor for a window. There are multiple events that can cause the DPI to change. The following list indicates the possible causes for the change in DPI.

  • The window is moved to a new monitor that has a different DPI.
  • The DPI of the monitor hosting the window changes. The current DPI for a window always equals the last DPI sent by WM_DPICHANGED. This is the scale factor that the window should be scaling to for threads that are aware of DPI changes. See WM_DPICHANGED message
WM_DRAWCLIPBOARD

Sent to the first window in the clipboard viewer chain when the content of the clipboard changes. This enables a clipboard viewer window to display the new content of the clipboard. A window receives this message through its WindowProc function. WM_DRAWCLIPBOARD message

WM_DRAWITEM
WM_DROPFILES
WM_DWMCOLORIZATIONCOLORCHANGED
WM_DWMCOMPOSITIONCHANGED
WM_DWMEXILEFRAME
WM_DWMNCRENDERINGCHANGED
WM_DWMSENDICONICLIVEPREVIEWBITMAP
WM_DWMSENDICONICTHUMBNAIL
WM_DWMTHUMBNAILSIZECHANGED
WM_DWMTRANSITIONSTATECHANGED
WM_DWMWINDOWMAXIMIZEDCHANGE
WM_ENABLE

Sent when an application changes the enabled state of a window. It is sent to the window whose enabled state is changing. This message is sent before the EnableWindow function returns, but after the enabled state (WS_DISABLED style bit) of the window has changed. A window receives this message through its WindowProc function. WM_ENABLE message

WM_ENDSESSION
WM_ENTERIDLE
WM_ENTERMENULOOP
WM_ENTERSIZEMOVE
WM_ERASEBKGND
WM_EXITMENULOOP
WM_EXITPROCESS
WM_EXITSIZEMOVE
WM_FLICK
WM_FLICKINTERNAL
WM_FONTCHANGE
WM_FORWARDKEYDOWN
WM_FORWARDKEYUP
WM_GETACTIONTEXT
WM_GETDLGCODE
WM_GETFONT
WM_GETHMENU
WM_GETHOTKEY
WM_GETICON

Sent to a window to retrieve a handle to the large or small icon associated with a window. The system displays the large icon in the ALT+TAB dialog, and the small icon in the window caption. A window receives this message through its WindowProc function. WM_GETICON message

WM_GETMINMAXINFO
WM_GETOBJECT
WM_GETTEXT
WM_GETTEXTLENGTH
WM_GETTITLEBARINFOEX
WM_HANDHELDFIRST
WM_HANDHELDLAST
WM_HELP
WM_HOOKMSG
WM_HOTKEY
WM_HSCROLL
WM_HSCROLLCLIPBOARD

Sent to the clipboard owner by a clipboard viewer window. This occurs when the clipboard contains data in the CF_OWNERDISPLAY format and an event occurs in the clipboard viewer's horizontal scroll bar. The owner should scroll the clipboard image and update the scroll bar values. See WM_HSCROLLCLIPBOARD message

WM_ICONERASEBKGND
WM_IME_CHAR
WM_IME_COMPOSITION
WM_IME_COMPOSITIONFULL
WM_IME_CONTROL
WM_IME_ENDCOMPOSITION
WM_IME_KEYDOWN
WM_IME_KEYLAST
WM_IME_KEYUP
WM_IME_NOTIFY
WM_IME_REPORT
WM_IME_REQUEST
WM_IME_SELECT
WM_IME_SETCONTEXT
WM_IME_STARTCOMPOSITION
WM_INITDIALOG
WM_INITMENU
WM_INITMENUPOPUP
WM_INPUT
WM_INPUT_DEVICE_CHANGE
WM_INPUTLANGCHANGE
WM_INPUTLANGCHANGEREQUEST
WM_KEYBOARDCORRECTIONACTION
WM_KEYBOARDCORRECTIONCALLOUT
WM_KEYDOWN
WM_KEYFIRST
WM_KEYLAST
WM_KEYUP
WM_KILLFOCUS
WM_KLUDGEMINRECT
WM_LBUTTONDBLCLK
WM_LBUTTONDOWN
WM_LBUTTONUP
WM_LPKDRAWSWITCHWND
WM_MAGNIFICATION_ENDED
WM_MAGNIFICATION_OUTPUT
WM_MAGNIFICATION_STARTED
WM_MBUTTONDBLCLK
WM_MBUTTONDOWN
WM_MBUTTONUP
WM_MDIACTIVATE
WM_MDICASCADE
WM_MDICREATE
WM_MDIDESTROY
WM_MDIGETACTIVE
WM_MDIICONARRANGE
WM_MDIMAXIMIZE
WM_MDINEXT
WM_MDIREFRESHMENU
WM_MDIRESTORE
WM_MDISETMENU
WM_MDITILE
WM_MEASURECONTROL
WM_MEASUREITEM
WM_MENUCHAR
WM_MENUCOMMAND
WM_MENUDRAG
WM_MENUGETOBJECT
WM_MENURBUTTONUP
WM_MENUSELECT
WM_MOUSEACTIVATE
WM_MOUSEFIRST
WM_MOUSEHOVER
WM_MOUSEHWHEEL
WM_MOUSELEAVE
WM_MOUSEMOVE
WM_MOUSEWHEEL
WM_MOVE
WM_MOVING
WM_NCACTIVATE
WM_NCCALCSIZE
WM_NCCREATE

Sent prior to the WM_CREATE message when a window is first created. A window receives this message through its WindowProc function. WM_NCCREATE message

WM_NCDESTROY
WM_NCHITTEST
WM_NCLBUTTONDBLCLK
WM_NCLBUTTONDOWN
WM_NCLBUTTONUP
WM_NCMBUTTONDBLCLK
WM_NCMBUTTONDOWN
WM_NCMBUTTONUP
WM_NCMOUSEHOVER
WM_NCMOUSELEAVE
WM_NCMOUSEMOVE
WM_NCPAINT
WM_NCRBUTTONDBLCLK
WM_NCRBUTTONDOWN
WM_NCRBUTTONUP
WM_NCUAHDRAWCAPTION
WM_NCUAHDRAWFRAME
WM_NCXBUTTONDBLCLK
WM_NCXBUTTONDOWN
WM_NCXBUTTONUP
WM_NEXTDLGCTL
WM_NEXTMENU
WM_NOTIFY
WM_NOTIFYFORMAT
WM_NOTIFYWOW
WM_NULL
WM_PAINT

The WM_PAINT message is sent when the system or another application makes a request to paint a portion of an application's window. The message is sent when the UpdateWindow or RedrawWindow function is called, or by the DispatchMessage function when the application obtains a WM_PAINT message by using the GetMessage or PeekMessage function. A window receives this message through its WindowProc function. WM_PAINT message

WM_PAINTCLIPBOARD

Sent to the clipboard owner by a clipboard viewer window when the clipboard contains data in the CF_OWNERDISPLAY format and the clipboard viewer's client area needs repainting. WM_PAINTCLIPBOARD message

WM_PAINTICON
WM_PALETTECHANGED
WM_PALETTEISCHANGING
WM_PARENTNOTIFY
WM_PASTE

An application sends a WM_PASTE message to an edit control or combo box to copy the current content of the clipboard to the edit control at the current caret position. Data is inserted only if the clipboard contains data in CF_TEXT format. WM_PASTE message

WM_PENWINFIRST
WM_PENWINLAST
WM_POINTERDEVICEADDED
WM_POINTERDEVICEDELETED
WM_POWER
WM_POWERBROADCAST
WM_PRINT

The WM_PRINT message is sent to a window to request that it draw itself in the specified device context, most commonly in a printer device context. A window receives this message through its WindowProc function. WM_PRINT message

WM_PRINTCLIENT

The WM_PRINTCLIENT message is sent to a window to request that it draw its client area in the specified device context, most commonly in a printer device context. Unlike WM_PRINT, WM_PRINTCLIENT is not processed by DefWindowProc. A window should process the WM_PRINTCLIENT message through an application-defined WindowProc function for it to be used properly. WM_PRINTCLIENT message

WM_QUERYDRAGICON
WM_QUERYENDSESSION
WM_QUERYNEWPALETTE
WM_QUERYOPEN
WM_QUERYUISTATE
WM_QUEUESYNC
WM_QUIT
WM_RASDIALEVENT
WM_RBUTTONDBLCLK
WM_RBUTTONDOWN
WM_RBUTTONUP
WM_REFLECT
WM_RENDERALLFORMATS

Sent to the clipboard owner before it is destroyed, if the clipboard owner has delayed rendering one or more clipboard formats. For the content of the clipboard to remain available to other applications, the clipboard owner must render data in all the formats it is capable of generating, and place the data on the clipboard by calling the SetClipboardData function. A window receives this message through its WindowProc function. WM_RENDERALLFORMATS message

WM_RENDERFORMAT

Sent to the clipboard owner if it has delayed rendering a specific clipboard format and if an application has requested data in that format. The clipboard owner must render data in the specified format and place it on the clipboard by calling the SetClipboardData function. WM_RENDERFORMAT message

WM_ROUTED_UI_EVENT
WM_SETCURSOR
WM_SETFOCUS
WM_SETFONT
WM_SETHOTKEY
WM_SETICON
WM_SETREDRAW
WM_SETTEXT
WM_SETTINGCHANGE

A message that is sent to all top-level windows when the SystemParametersInfo function changes a system-wide setting or when policy settings have changed. Applications should send WM_SETTINGCHANGE to all top-level windows when they make changes to system parameters. (This message cannot be sent directly to a window.) To send the WM_SETTINGCHANGE message to all top-level windows, use the SendMessageTimeout function with the hwnd parameter set to HWND_BROADCAST. A window receives this message through its WindowProc function. WM_SETTINGCHANGE message

WM_SHOWWINDOW
WM_SIZE
WM_SIZECLIPBOARD

Sent to the clipboard owner by a clipboard viewer window when the clipboard contains data in the CF_OWNERDISPLAY format and the clipboard viewer's client area has changed size. WM_SIZECLIPBOARD message

WM_SIZING
WM_SPOOLERSTATUS
WM_STYLECHANGED
WM_STYLECHANGING
WM_SYNCPAINT
WM_SYNCTASK
WM_SYSCHAR
WM_SYSCOLORCHANGE
WM_SYSCOMMAND
WM_SYSDEADCHAR
WM_SYSKEYDOWN
WM_SYSKEYUP
WM_SYSMENU
WM_TABLET_FIRST
WM_TABLET_LAST
WM_TCARD
WM_THEMECHANGED
WM_TIMECHANGE
WM_TIMER
WM_UAHDESTROYWINDOW
WM_UAHDRAWMENU
WM_UAHDRAWMENUITEM
WM_UAHINIT
WM_UAHINITMENU
WM_UAHMEASUREMENUITEM
WM_UAHNCPAINTMENUPOPUP
WM_UAHUPDATE
WM_UIACTION
WM_UNDO

An application sends a WM_UNDO message to an edit control to undo the last operation. When this message is sent to an edit control, the previously deleted text is restored or the previously added text is deleted. WM_UNDO message

WM_UNICHAR
WM_UNINITMENUPOPUP
WM_UPDATEUISTATE
WM_USER
WM_USERCHANGED
WM_VKEYTOITEM
WM_VSCROLL
WM_VSCROLLCLIPBOARD

Sent to the clipboard owner by a clipboard viewer window when the clipboard contains data in the CF_OWNERDISPLAY format and an event occurs in the clipboard viewer's vertical scroll bar. The owner should scroll the clipboard image and update the scroll bar values. WM_VSCROLLCLIPBOARD message

WM_WAKETHREAD
WM_WINDOWPOSCHANGED
WM_WINDOWPOSCHANGING
WM_WININICHANGE

An application sends the WM_WININICHANGE message to all top-level windows after making a change to the WIN.INI file. The SystemParametersInfo function sends this message after an application uses the function to change a setting in WIN.INI. Note: The WM_WININICHANGE message is provided only for compatibility with earlier versions of the system. Applications should use the WM_SETTINGCHANGE message. M_WININICHANGE message

WM_WTSSESSION_CHANGE
WM_XBUTTONDBLCLK
WM_XBUTTONDOWN
WM_XBUTTONUP
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