Win32 SDK Basics (9) Summary of Windows Common Messages

1. Windows message distribution

Message range	Description
0 ~ WM_USER – 1	System Message
WM_USER ~ 0x7FFF	Custom window classIntegerMessage
WM_APP ~ 0xBFFF	Application custom message
0xC000 ~ 0xFFFF	ApplicationStringMessage
> 0xFFFF	Reserved for future system applications

2. Commonly used Windows messages

##The application creates a windowWM_DESTROY0x0A window was destroyed##WM_MOVEWM_SIZEWM_ACTIVATEStatusWM_SETWM_KILLFOCUSWM_ENABLEWM_SETREDRAWWM_SETTEXTWM_GETTEXT##WM_QUIT0x0012Used to end program running or the application calls the Postquitmessage() function to generate this messageWM_QUERYOPEN0x0013When the user window is restored to its previous size and position, send this message to an iconWM_ERASEBKGND0x0014WM_SYSCOLORCHANGEWM_ENDSESSION##WM_SHOWWINDOW0x001CWhen a window will be activated, the activated window and the currently active (about to lose activation) window will receive this message. Which window should the application send this message to? Which one is activated and which one is inactive0x001D##0x0020If the mouse causes the cursor to move in a window and the mouse input When it is not captured, send a message to the windowWM_MOUSEACTIVATE0x0021When the cursor is in an inactive window and the user is pressing a mouse button, this message is sent to the current window##WM_CHILDACTIVATEWM_QUEUESYNC##WM_GETMINMAXINFOWM_PAINTICONWM_ICONERASEBKGNDNEXTDL##0x0041Displays that the memory is very lowWM_WINDOWPOSCHANGING0x0046This message is sent when the SetWindowPos() function is called to change the size and position of the window. Give the window WM_POWER0x0048When the system will Send this message to all processes when entering the suspend stateWM_ 0x004AThis message is sent when one application passes data to another application##WM_CANCELJOURNALWM_NOTIF of a certain control When the event ##WM_INPUTLANGCHANGEREQUEST WM_INPUTLANGCHANGEWM_TCARDWM_HELPWM_USERCHANGED##WM_NCHITTEST0x0084##WM_NCMBUTTONUP0x00A8This message is sent when the cursor is in the non-client area of ​​the window and the middle mouse button is released WM_NCMBUTTONDBLCL0x00A9 This message is sent when the cursor is in the non-client area of ​​the window and the middle mouse button is double-clicked##WM_SYSKEYDOWN0x0104Send this message to the window with keyboard focus when holding down the ALT key while pressing other keysWM_SYSKEYUP0x0105This message is sent to the owner of the keyboard when releasing a key while holding down the ALT key Focused windowWM_SYSCHAR##WM_SYSDEADCHARWM_INITDIALOGWM_COMMANDWM_SYSCOMMANDWM_TIMEREventWM_HSCROLL##WM_MENURBUTTONUP 0x0122This message is generated when releasing the right mouse button when the cursor is on a menu item##WM_MENUDRAGWM_MENUGETOBJECTWM_UNINITMENUPOPUPWM_MENUCOMMAND##WM_CHANGEUISTATE##WM_CTLCOLORLISTBOX0x0134Send this message to its parent window before drawing the list box control, which can be used to set the text and background color of the edit boxWM_CTLCOLORBTN0x0135Send before drawing WM_CTLCOLORDLG0x0136 Send this message to its parent window before drawing the dialog box. It can be used to set the text and background color of the edit boxWM_CTLCOLORSCROLLBAR0x0137Send this message to its parent window before drawing the scroll bar control. It can be used to set the scroll bar control. Text and background color##WM_CTLCOLORSTATICSend this message to its parent window before drawing the control. It can be used to set the text and background color of the static controlWM_MOUSEMOVE##0x0208Release middle mouse buttonWM_MBUTTONDBLCLKWM_MOUSEWHEEL##WM_PARENTNOTIFYWM_ENTERMENULOOPWM_EXITMENULOOPWM_SIZING##WM_DEVICECHANGE0x0219Send this message to an application or device when the device's hardware configuration changesWM_MDICREATE0x0220The application sends this message to multiple documents Client window to create an MDI child windowWM_MDIDESTROY0x0221The application sends this message to the multi-document client window to close an MDI child window##WM_MDIACTIVATEWM_MDIRWM_MDINEXTWM_MDIMAXIMIZEWM_MDITILEWM_MDICASCADE##WM_ENTERSIZEMOVEWM_EXITSIZEMOVEWM_DROPFILEWM_MDIREFRESHMENUWM_MOUSEHOVERWM_MOUSELEAVEWM_CUT300WM_COPY##WM_PASTE ##0x0309When When the clipboard contains data in the CF_OWNERDIPLAY format and the client area of ​​the clipboard observation window needs to be redrawn, send this message to the clipboard owner##WM_VSCROLLCLIPBOARD##WM_SIZECLIPBOARDWM_ASKCBFORMATNAME

Message name	Value	说 Ming
##WM_ NULL	0x0000	Empty message, this message will be ignored by the receiving window
WM_CREATE	0x0 001
	002
0x0003	Move a window
0x0005	Change the size of a window
0x0006	A window is activated or deactivated
FOCUS 0x0007	After gaining focus
0x0008	Lost focus
0x000A	Produced when the application Enable state changes
##0x000B	Set whether the window can be redrawn
0x000C	An application sends this message to set the text of a window
0x000D	The application sends this message to copy the text of the corresponding window to the buffer
WM_GETTEXTLENGTH	0x000E	Get the length of the text associated with a window (excluding null characters)
WM_PAINT	0x000F	Ask a window to repaint itself
WM_CLOSE	0x0010	Sends a signal when a window or application is to be closed
WM_QUERYENDSESSION	##0x0011	The user chooses to end the conversation The box or application itself calls ExitWindows() Function
	##When the window background must be erased (such as when the window is resized)
0x0015	Sent when the system color changes This message is given to all top-level windows
0x0016	When the system process issues the WM_QUERYENDSESSION message, this message is sent to the application
##0x0018	This message is sent to this window when hiding or showing the window	##WM_ACTIVATEAPP
		WM_FONTCHANGE
	Send this message to all top-level windows when the system's font resource library changes
##WM_ TIME CHANGE	0x001E	Send this message to all top-level windows when the system time changes
WM_CANCELMODE	0x001F	Send this message to cancel an ongoing operation
WM_SETCURSOR
0x0022	Send this message to an MDI child window when the user clicks the title bar of this window, or when the window is activated, moved, or resized
0x0023	This message is generated by a computer-based The training program is sent and the user input message is separated through the Hook program of WH_JOURNALPALYBACK
0x0024	When the window is about to change its size or position, send this message to the window
0x0026	Send this message to the window when the window icon is about to be redrawn
0x0027	This is sent when the icon background must be redrawn before the icon in a minimized window is redrawn. Message to this window	##WM_
GCTL 0x0028	Send this message to a dialog box procedure to change the focus position	WM_SPOOLERSTATUS
0x002A	This message is issued when the print management queue adds or subtracts a job	WM_DRAWITEM	0x002B	Sent when the appearance of Button, ComboBox, Listbox, Menu control changes This message is for the owners of these controls
##WM_MEASUREITEM	0x002C	When Button, ComboBox, list box, ListView, Menu items are created, send this message to the owner of the control
WM_ DELETEITEM	0x002D	When the ListBox or ComboBox is destroyed or when some items are sent via LB_DELETE STRING, When the LB_RESETCONTENT, CB_DELETESTRING, CB_RESETCONTENT message is deleted, send this message to the owner of the control
WM_V KEYTOITEM	0x002E	A ListBox control with the LBS_WANTKEYBOARDINPUT style sends this message to its owner, In response to the WM_KEYDOWN message
WM_CHARTOITEM	0x002F	A ListBox control with the LBS_WANTKEYBOARDINPUT style sends this message to its owner in response to the WM_CHAR message
WM_SETFONT	0x0030	When the application draws a control, this message is sent to obtain the font in which the text in the control is drawn
WM_GETFONT	0x0031	The application sends this message to get the font of the text drawn by the current control
WM_SETHOTKEY	0x0032	The application sends this message to associate a window with a hotkey
WM_GETHOTKEY	0x0033	The application sends this message to determine Whether the hotkey is associated with a certain window
WM_QUERYDRAGICON	0x0037	This message is sent to the minimized window. When this window is about to be dragged and dropped and there is no icon defined in its class, the application returns an icon or cursor handle. The system displays this icon or cursor when the user drags and drops the icon.
WM_COMPAREITEM	0x0039	Send this message to determine the ComboBox or ListBoxNewly addedThe relative position of the added item
##WM_ COMPACTING
COPY DATA
0x004B	When a user cancels the program log activation state, send this message to the application
Y 0x004E	When a	has occurred or this control needs to get some information, send this message to its parent window
0x0050	When the user selects an input language, or the hotkey of the input language changes
0x0051	This message is sent to the affected top level when the application input language is changed. Window
0x0052	When the application has initialized The Windows Help routine sends this message to the application
0x0053	When the user presses F1, if a menu is activated, this message is sent to the menu associated with this window, otherwise it is sent to the window with focus. If there is currently no focus, this message is sent. Sent to the currently active window
0x0054	Send this message to all windows when the user has logged in or logged out. When the user logs in or logs out, the system updates The user's specific setting information, the system will send this message immediately when the user updates the settings
WM_NOTIFYFORMAT	0x0055	Common controls and their parent windows use this message to determine whether to use ANSI or UNICODE structure in the WM_NOTIFY message. Using this control can make a certain The control communicates with its parent control
WM_CONTEXTMENU	0x007B	When the user right-clicks in a window, this message is sent to the window
WM_STYLECHANGING	0x007C	When one or more styles of the window are about to call the SetWindowLong() function, send this message to the window
WM_STYLECHANGED	0x007D	This message is sent when one or more styles of the window are changed by calling the SetWindowLong() function Give the window
##WM_ DISPLAYCHANGE	0x007E	Send this message to all windows when the display resolution is changed
WM_GETICON	0x007F	Send this message to a window and return the handle of the large icon or small icon associated with a window
WM_SETICON	0x0080	The application sends this message to associate a new large or small icon with a window
WM_NCCREATE	0x0081	When a window first When created, this message is sent before the WM_CREATE message is sent
WM_NCDESTROY	0x0082	This message notifies a window that the non-client area is being destroyed
WM_NCCALCSIZE	0x0083	This message is sent when calculating the client area size and position of a window
		This message is generated when moving the mouse, holding down or releasing the mouse
##WM_NCPAINT	0085	When the frame of a window must be drawn, the application sends this message to the window
WM_NCACTIVATE	0x0086	Indicates whether the window is active or active by changing the non-client area of ​​a window When inactive, this message is sent to the window
WM_NCMOUSEMOVE	0x00A0	Send this message to the window when the cursor moves within the non-client area of ​​the window (window title bar and border)
WM_NCLBUTTONDOWN	0x00A1	This message is sent when the cursor is in the non-client area of ​​the window and the left mouse button is pressed
WM_NCLBUTTONUP	0x00A2	When the cursor is in the non-client area of ​​the window and the left mouse button is released Send this message
WM_NCLBUTTONDBLCLK	0x00A3	When the cursor is on This message is sent when the left mouse button is double-clicked in the non-client area of ​​the window
WM_NCRBUTTONDOWN	0x00A4	This message is sent when the cursor is in the non-client area of ​​the window and the right mouse button is pressed
WM_NCRBUTTONUP	0x00A5	This message is sent when the cursor is in the non-client area of ​​the window and the right mouse button is released
WM_NCRBUTTONDBLCLK	0x00A6	This message is sent when the cursor is in the non-client area of ​​the window and the right mouse button is double-clicked
WM_NCMBUTTONDOWN	0x00A7	When the cursor is in the non-client area of ​​the window and press This message is sent when the mouse is middle-clicked
WM_KEYDOWN	0x0100	Press a non-system key (press The "ALT" key was not pressed when the key was pressed)
WM_KEYUP	0x0101	Release a non-system key
##WM_CHAR	0x0102	Press a key and send this message when TranslateMessage() forwards WM_KEYDOWN
WM_DEADCHAR	0x0103	Release a key and send this message after TranslateMessage() forwards WM_KEYUP
##0x0106	When TranslateMessage( ) forwards WM_SYSKEYDOWN and sends this message to the window with keyboard focus
0x0107	Send this message to the window with keyboard focus after TranslateMessage() forwards WM_SYSKEYUP
0x0110	Send this message before the dialog box is displayed. This message is usually used to initialize the control and perform other tasks
0x0111	Select a window menu item or a control to send a message to its parent window or press This message is generated when a shortcut key
0x0112	Send this message to the window when selecting a window menu item or selecting to maximize or minimize
0x0113	Timer
0x0114	Send this message to the owner of the window and scroll bar when the horizontal scroll bar of the window generates a scroll event
WM_VSCROLL	0x0115	Send this message to the owner of the window and scroll bar when the vertical scroll bar of the window generates a scroll event
WM_INITMENU	0x0116	Sent when a menu is about to be activated Message, which occurs when a menu item is pressed or a menu shortcut key is pressed, which allows a program to change the menu before it is displayed
##WM_INITMENUPOPUP	0x0117	This message is sent when a drop-down menu or submenu is about to be activated. It allows the menu to be modified without changing it before displaying. Entire menu
WM_MENUSELECT	0x011F	Select a menu item Send this message to the owner of the menu (usually the window)
WM_MENUCHAR	0x0120	When the menu has been activated and the user pressed a key (not a shortcut key), send this message to the owner of the menu
WM_ENTERIDLE	0x0121	Sends this message to its owner when a modal dialog box or menu enters the idle state. The idle state means that the message queue is empty after processing one or several previous messages
0x0123	Sends this message to the owner of the drag-and-drop menu when a menu item is dragged
0x0124	When the cursor moves into the menu item or moves from the center of the menu item Send this message to the owner of the drag-and-drop menu when reaching the top or bottom of a menu item
0x0125	This message is generated when the drop-down menu or submenu is destroyed
0x0126	This message is generated when the user selects a menu item
0x0127	The application sends this message to indicate that the user interface (UI) state should be changed
WM_UPDATEUISTATE	##0x0128	The application sends this message to change the specified window and its children. The user interface (UI) state of the window
WM_QUERYUISTATE	0x0129	The application sends this message to get the user interface (UI) status of a certain window
WM_CTLCOLORMSGBOX	0x0132	Send this message to its parent window before drawing the message box. By responding to this message, the parent window can use the given handle of the relevant display device. To set the text and background color of the message box
WM_CTLCOLOREDIT	0x0133	Send this message to its parent window before drawing the edit control. It can be used to set the text and background color of the edit box
		button control This message is sent to its parent window and can be used to set the text and background color of the edit box
##0x0138	Drawing static
0x0200	Mouse move	##WM_LBUTTONDOWN
0x0201	Press the left mouse button
WM_LBUTTONUP	0x0202	Release the left mouse button
WM_LBUTTONDBLCLK	0x0203	Double click the left mouse button
WM_RBUTTONDOWN	0x0204	Press the right mouse button
##WM_RBUTTONUP	0x0205	Release the right mouse button
WM_RBUTTONDBLCLK	0x0206	Double-click Right mouse button
WM_MBUTTONDOWN	0x0207	Press the middle mouse button Key
WM_MBUTTONUP
##0x0209	Double-click the middle mouse button
0x020A	Send this message to when the mouse wheel is rotated The currently focused window
0x0210	When When an MDI child window is created or destroyed, or when the cursor is on the child window and the user clicks the mouse button, this message is sent to its parent window
0x0211	Send this message to notify the application's main window process that it has entered menu mode Loop
0x0212	Send this message to notify the application The main window process has exited the menu mode loop
0x0214	Send this message to the window when resizing the window. Through this message, the application can monitor or modify the window size and position
WM_CAPTURECHANGED	0x0215	When the window is set to not capture mouse events When , send this message to the window
WM_MOVING	0x0216	Send this message to the window when moving the window. Through this message, the application can monitor or modify the window size and position
##WM_POWERBROADCAST	0x0218	Send this message to an application to notify it about power management events
		Driver Program
0x0222	The application sends this message to the multi-document client window to notify the client window to activate another MDI child window. When the client window receives this message, it sends a WM_MDIACTIVE message to the MDI child window. window (not activated) to activate it
ESTORE ##0x0223	The application sends this message to the MDI client window to notify the child window to return to its original size
0x0224	The application sends this message to the MDI client window to activate the next or previous window
0x0225	The application sends this message to the MDI client window to maximize an MDI child window
0x0226	The application sends this message to the MDI client window to Rearrange all MDI sub-windows in tiling mode
0x0227	The application sends this message to the MDI client window to rearrange all MDI child windows in a cascading manner
WM_MDIICONARRANGE	0x0228	The application sends this message to the MDI client window to rearrange all minimized MDI child windows
WM_MDIGETACTIVE	0x0229	The application sends this message to the MDI client window to Find the handle of the active child window
WM_MDISETMENU	##0x0230	The application sends this message to the MDI client window to replace the subwindow's menu with the MDI menu
##0x0231	When the window enters the move or resize mode loop, send this message to the window
0x0232	Send this message to the window when it exits the move or resize mode loop
S 0x0233	When the user drags When moving a file, this message
0x0234	The application sends this message to the MDI client window to refresh the window menu
0x02A1	When the cursor hovers in the window client area for more than the time specified by TrackMouseEvent(), send this message to the window
0x02A3	When the cursor leaves the window client area for more than the time specified by TrackMouseEvent(), send this message to the window
0x0	App The program sends this message to an Edit Box or ComboBox to delete the currently selected text
0x0301	The application sends this message to an edit box or ComboBox to copy the currently selected text to the clipboard
0x0302	Applications send this message to an edit box or ComboBox to get data from the clipboard
WM_CLEAR	0x0303	The application sends this message to an edit box or ComboBox to clear the current selection
WM_UNDO	0x0304	The application sends this message to an Edit Box or ComboBox to undo the last operation
##WM_DESTROY CLIPBOARD	0x0307	When EmptyClipboard() is called to clear the clipboard, this message is sent to the clipboard owner
WM_DRAWCLIPBOARD	0x0308	This message is sent to the first window in the clipboard watch chain when the contents of the clipboard change. It allows the clipboard watch window to be displayed. New contents of clipboard
WM_PAINTCLIPBOARD
0x030A	When the clipboard contains data in the CF_OWNERDIPLAY format and a vertical scroll bar event occurs in the clipboard observation window, the clipboard observation window sends this message to Clipboard owner
0x030B	When clipping The clipboard viewing window sends this message to the owner of the clipboard when the board contains data in the CF_OWNERDIPLAY format and the size of the client area of ​​the clipboard viewing window has changed
##0x030C	The clipboard observation window sends this message to the clipboard owner to obtain the name of the CF_OWNERDISPLAY clipboard format	WM_CHANGECBCHAIN
0x030D	When a window observes the chain from the clipboard This message is sent to the first window in the clipboard watch chain when removed	WM_HSCROLLCLIPBOARD
0x030E	When the clipboard contains data in the CF_OWNERDIPLAY format and a horizontal scroll bar event occurs in the clipboard observation window, the clipboard observation window sends this message to the clipboard owner	WM_QUERYNEWPALETTE
0x030F	Send this message to the window that is about to gain keyboard focus. This message gives the window a chance to implement its logical palette when it gains focus.
WM_PALETTEISCHANGING	0x0310	This message is sent to notify all applications when an application is about to implement its logical palette
WM_PALETTECHANGED	0x0311	The window that gets the focus implements it Send this message to all top-level and overlapping windows after the logical palette to change the system palette
WM_HOTKEY	0x0312	This message is generated when the user presses a hotkey registered by RegisterHotKey()
WM_PRINT	0x0317	The application sends this message to the window, Requests the window to draw itself in the specified device context, usually the printer device context
WM_PRINTCLIENT	0x0318	The application sends this message to the window, requesting the window to draw the window client area in the specified device environment, usually the printer device environment
WM_APP	0x8000	Help users customize messages. Custom messages can be WM_APP+X, X is positive Integer
WM_USER	0x0400	Help users customize messages , the custom message can be WM_USER+X, X is a positive integer

3. Notification message - button

##BN_DOUBLECLICKEDBN_HILITE##BN_PAINTBN_UNHILITE

Message name

Description

BN_CLICKED

Click button

##BN_DISABLE

Button disabled

##Double click button

Highlight button

The button should be redrawn

The highlight should be removed

4. Notification message-combo box

##CBN_ERRSPACECombo box out of memoryCBN_KILLFOCUSCombo box lost input focusCBN_SELCHANGEAn item is selected in the combo boxCBN_SELENDCANCELThe user’s selection will be IgnoreCBN_SELENDOKUser's selection will be executedCBN_SETFOCUSCombo box gets input focus

5. Notification message-edit box

Message name	Description
CBN_CLOSEUP	The list box of the combo box is closed
CBN_DBLCLK	The user double-clicked a string
##CBN_DRO PDOWN	The list box of the combo box is pulled down
CBN_EDITCHANGE	The user modified the text in the combo box
CBN_EDITUPDATE	Inside the combo box The text will be updated soon

##The user clicked Horizontal scroll bar##EN_KILLFOCUSEN_MAXTEXTEN_SETFOCUSEN_UPDATEEN_VSCROLL6. Notification message-list box

Message name	Description
EN_CHANGE	The text in the edit box has been updated
##EN_ERRSPACE	Insufficient memory in the edit box
EN_HSCROLL
Edit box loses input focus
The inserted content was truncated
The edit box gets the input focus
The text in the edit box will be updated
The user clicked the vertical scroll bar

Message nameLBN_DBLCLK##LBN_ERRSPACELBN_KILLFOCUS

Description
The user double-clicked an item
The list box is out of memory
The list box is losing Input focus	##LBN_SELCANCEL
User selection canceled	LBN_SELCHANGE
User selection will change	LBN_SETFOCUS
List box gets input focus

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