Good things, description of Windows messages
2004-5-15 2:17:17 (Article Category: Delphi)
This is what I saw on the big rich, I feel very good, I have a sharing, the author forgets what is called, here to say Sorry to this article, if there is a chance to learn the author name, must I finally got SPY , I don't need to install VC. You don't need to install it. Cool, 20K after compression, you need to ask Mail. If you think these things are useful to you, please UP, let more people know:) ********************************************** ************************************************ Refers to a notification issued by Wi NDOWS to tell the application The program has happened. For example, click the mouse, change the window size, press a key on the keyboard to send Wi N D O W S to the application. The message itself is passed to the application as a record, and this record contains the type of message and other information. For example, for messages generated by clicking on the mouse, this record contains the coordinates when clicking the mouse. This record type is called TM SG, which is declared in the Wi NDOWS unit: Typ etmsg = Packed RecordhWnd: hwnd; / / window handle Message: uint; / / message constant identifier WPARAM: WPA RAM; // 32 Bit message Specific additional information LPARAM: LPA RAM; // 32-bit messages Specific additional information Time: DWORD; / / message creation time Pt: tpoint; / / message creation mouse position END; what is there? Do you feel that the information in a message record is like Greek? If this is the case, then take a look at the explanation below: HWND 32-bit window handle. The window can be any type of screen object because Win32 is able to maintain the handle of most visual objects (windows, dialogs, buttons, edit boxes, etc.). Message is used to distinguish constant values for other messages, which may be predefined in the Windows unit, or they can be custom constants. WPARAM is usually a constant value related to messages or a handle of a window or control. LPARAM is usually a pointer to data in memory. Since W p A r a m, L P A R A M and P O i N t E r are 3 2 bits, so they can be converted between them.
WM_NULL = $ 0000; WM_CREATE = $ 0001; application creation a window WM_DESTROY = $ 0002; a window is destroy WM_MOVE = $ 0003; moving a window WM_SIZE = $ 0005; change the size of a window WM_Activate = $ 0006; a window is activated or lost to the activation status; WM_SETFOCUS = $ 0007; get focus After WM_KILLFOCUS = $ 0008; lost focus WM_ENABLE = $ 000A; change Enable status WM_SETREDREDRAW = $ 000B; Settings window can redraw WM_SETTEXT = $ 000c; application sends this message to set the text WM_GETTEXT = $ 000d; the application sends this message to copy the text to the buffer of the corresponding window WM_GETTEXTLENGTH = $ 000E; get The length of the text related to a window (does not include empty characters) WM_PAINT = $ 000F; ask a window to call yourself WM_close = $ 0010; when a window or application is to close Send a signal WM_QUERYENDSESSION = $ 0011; When the user selects the end dialog or the program you call the exitwindows function WM_quit = $ 0012; used to end the program run or when the program calls postquitMessage function WM_QUERYOPEN = 0013; When the user window restores the previous size position, send this message to an icon WM_ERASEBKGND = $ 0014; When the window background must be erased (the case change the size of the size) WM_SYSCOLORCHANGE = $ 0015 When the system color changes, it sends this message to all top-level windows WM_ENDSESSION = $ 0016; After the system process issues a WM_QueryEndSession message, this message is sent to the application, informs whether the conversation ends WM_SYSTEMERROR = $ 0017; WM_SHOWINDOW = $ 0018; When the hidden or display window is sent to this message to this message WM_ACTIVATEAPP = $ 001c; send this message to the application which window is activated, which is not activated; WM_FONTCHANGE = $ 001D; When the system's font resource library changes, this message is sent to all top windows WM_TIMECHANGE = $ 001; send this message when the system changes to all top windows WM_CANCELMODE = $ 001F; send This message cancels some of the ongoing touch state (operation) WM_SETCURSOR = $ 0020; if the mouse causes the cursor to move in a window and when the mouse input is not captured, send a message to a window WM_MOUSEACTIVATE = $ 0021; When the cursor is in a non-active window and the user is in accordance with a key in the mouse to send this message to the current window WM_CHILDACTIVATE = $ 0022; send this message to the MDI sub-window When the user clicks on this window The title bar, or when the window is activated, moved, change the size WM_QUEESYNC = = $ 0023; This message is sent by the computer-based training program, separated by the WH_Journalpalyback hook program separated by the user input message WM_GETMAXINFO = $ 0024; this Message Send to the window When it will change the size or position; WM_PAINTICON = $ 0026;
Send to the minimization window When it icon will be swapped WM_ICONERASEBKGND = $ 0027; This message is sent to a minimized window, only when it is drawing the icon, its background must be redrawn WM_NEXTDLGCTL = $ 0028 Send this message to a dialog program to change the focus position WM_SPOOLERSTATUS = $ 002A; Whenever the print management column increases or decreases this message WM_DRAWITEM = $ 002B; Button, ComboBoX When the visual appearance of ListBox, this message is sent to the owner of these empty parts WM_MeasureItem = $ 002c; when Button, Combo Box, List Box, List View Control, or Menu Item is created Message to the owner of the control WM_DELETEITETETETETETETETETETETETETETETETETETETETETETETETETETETETETETETETETETETETETED; when the list box or Combo Box is destroyed or when some item is removed by lb_deleteString, lb_resetcontent, cb_deleteString, or cb_resetcontent message WM_VKEYTOITEM = $ 002E; This message has a LBS_WANTKEYBOARDINPUT style to give it the owner to respond to the WM_KeyDown message WM_CHARTOITEM = $ 002F; this message is sent by a list box of LBS_WANTKEYBOARDINPUT style to his owner to respond to WM_CHAR messages WM_SETFONT = $ 0030; When the program is drawn, the program sends this message to get the color WM_GETFONT = $ 0031; the application sends this message to get the current control to draw the text font WM_SETHOTKEY = $ 0032; Application Send this message allows a window to associate with a hotkey WM_GETHOTKEY = = $ 0033; the application sends this message to determine if the hotkey is associated with a window WM_QueryDragicon = $ 0037; this message Send to the minimization window, when this window will be drag and drop and its class is not defined in the class, the application can return a handle of an icon or cursor, when the user drags and drop icon, the system displays this icon or cursor WM_CompareItem = 0039; Send this message to determine the relative position of ComboBox or Listbox added items WM_G ETOBJECT = 003d; WM_compacting = $ 0041; Show memory has rare WM_WindowPoschanging = $ 0046; send this message to the size and location of the window to be changed, call the setWindowPos function or other window Manage function WM_WINDOWPOSCHANGED = $ 0047; Send this message to the size and location of the window to call the SETWINDOWPOS function or other window management function WM_Power = $ 0048; (for 16-bit Windows) This message is sent this message when the system will enter the pause state =WM_copydata = $ 004a; send this message when an application delivers data to another application WM_CANCELJOURNAL = $ 004B; when a user cancels log log Activate state, submit this message to the program WM_NOTIFY = $ 004E; send this message to its parent window WM_InputlangChangeRequest = $ 0050 when an event of a control has occurred or this control needs to get some information ; When the user selects a certain input language, or the hotkey change of the input language change WM_INPUTLANGCHANGE = $ 0051;
When the platform has been changed, this message is sent to the affected top window WM_TCARD = $ 0052; when the program has initialized the Windows Help routine, this message is sent to the application WM_HELP = $ 0053; This message shows that the user presses F1. If a menu is activated, send this message and this message is associated with the menu, otherwise send a window with focus, if there is no focus, The message is sent to the currently activated window WM_UserChanged WM_UserChanged = $ 0054; send this message to all windows when the user has logged in or exits, when the user logs in or exits, the system updates the user's specific setting information, when the user update the setting I will send this message immediately; WM_NOTIFORMAT = $ 0055; public control, custom control, and their parent window to determine that the control is using ansi or a Unicode structure in the WM_NOTIFY message, using this control to make a control with it Mutual communication between the parent control WM_CONTEXTMENU = 007b; When the user clicks on a window, send this message to this message to this message WM_StyleChanging = $ 007c; When the calling setWindowlong function will change one or more When the window is sent to the window WM_StylechangeD = $ 007d; send this message after the style of the setWindowlong function one or more windows, send this message to that message WM_DISPLAYCHANGE = $ 007E; when the display is resolution After changing the message, send this message to all windows WM_GETICON = $ 007f; this message is sent to a window to return a big icon or small icon for a window; WM_seticon = $ 0080; Program Send this message to let a new big icon or small icon associate with a window; WM_NCCREATE = $ 0081; When a window is created first, this message is sent before the WM_CREATE message Send; WM_NCDESTROY = $ 0082; This message notifies a window, non-customer area is destroying WM_nccalcsize = $ 0083; when a window's customer area must be asked to send this message WM_nchittest = $ 0084; // Move the mouse, when you hold down or release the mouse, WM_NCPAINT = $ 0085; program sends this message to a window When it (window) frame must be drawn; WM_ncactivate = $ 0086; This message is sent to a window It is only when its non-client area needs to be changed to display whether it is activated or an activation state; WM_GETDLGCODE = $ 0087; send this message to a control associated with the dialog program, Widdows control orientation key, and Tab keys Enter this control By responding to the WM_GETDLGCODE message, the application can treat him as a special input control and can handle it WM_ncmousemove = $ 00A0; send this message to this message when the cursor moves in a window's non-client mobile // Non-customer area is: the title bar and window of the form Border WM_NCLBUTTONDOWN = $ 00A1; When the cursor is in a window When the client area is pressed, press the left button to submit this message WM_nclButtonup = $ 00A2; When the user releases the left mouse button, the cursor is sent to the non-client zone ten; WM_nclButtondblclk = $ 00A3; when the user Double-click the left mouse button and the cursor one window sends this message in the non-client zone 10 WM_ncrbuttondown = $ 00A4;
When the user presses the mouse button while the cursor is sent to the window's non-client district when the window is sent this message WM_ncrButtonup = $ 00A5; when the user releases the mouse button, the cursor is sent to the window in the non-customer area of the window, the message is sent to the message WM_ncrbuttondblclk = $ 00A6; When the user doubles the mouse button, the spectrum is sent in the non-client zone 10. WM_ncmbuttondown = $ 00A7; When the user presses the mouse button while the cursor is also sent to the window of the window to send this message WM_NCMBUTTONUP = $ 00A8; When the user releases the mouse button while the cursor is in the non-client district of the window, this message is sent this message when the window is in the non-client district. WM_NCMBUTTONDBLCLK = $ 00A9; when the user doubles the mouse button while the cursor is in the window of the window Send this message WM_KEYFIRST = $ 0100; wm_keydown = $ 0100; // Press a key WM_KEYUP = = $ 0101; // Release a key WM_CHAR = $ 0102; // Press a key and have issued WM_KEYDOWN, WM_KEYUP message WM_DEADCHAR = $ 0103; Send this message when translating the WM_KEYUP message with the TranslateMessage function to send this message to the window WM_SYSKEYDOWN = $ 0104; Focus window; WM_SYSKEYUP = $ 0105; When the user releases a button while the Alt key is pressed, this message is submitted to the window of the focus WM_SYSCHAR = $ 0106; when the WM_SYSKEYDOWN message is translated by the translateMessage function After submitting this message to the window WM_SYSDEADCHAR = $ 0107; when the wm_syskeydown message is translated by the translateMessage function, send this message to the window of the focus WM_KEYLAST = $ 0108; WM_INITDIALOG = $ 0110 The message is sent to it before a dialog program is displayed, which is usually used to initialize the control and perform other tasks WM_COMMAND = $ 0111; when the user selects a menu command item or when a control sends a message Give it a parent window, a shortcut is translated WM_sysCommand = $ 0112; when the user selects a command or when the user When you choose to maximize or minimize the message, the window will receive this message WM_TIMER = $ 0113; / / Timer event WM_HSCROLL = $ 0114; When a window standard horizontal scroll bar generates a scrolling event to send this message to that window, also sent to control WM_VScroll = $ 0115; when a window standard vertical scroll bar generates a scroll event The message is also sent to the window, and the control is sent to the control WM_INITMENU = $ 0116; when a menu will be activated, it will send this message, which occurs in a user menu bar or presses a menu button. It allows the program to change the menu WM_InitMenupopup = $ 0117 before display; when a drop-down menu or submenu will be activated, it allows the program to change the menu before it is displayed, not to change all WM_MENUSELECT = $ 011 F; When the user selects a menu item, send this message to the owner of the menu (usually window) WM_MenuChar = $ 0120; when the menu has been activated by the user (different from acceleration keys), Send this message to the owner of the menu; WM_ENTERIDLE = $ 0121; send this message to the owner of the owner when a modal dialog or menu enters an empty state,
A modal dialog or menu enters the no-load status is to wait for one or more previous messages, there is no message, it is waiting for WM_MenurButtonup = $ 0122; WM_MENUDRAG = $ 0123; WM_MenugetObject = $ 0124; WM_UNINITMENUPOPUP = $ 0125; WM_MENUCOMMAND = $ 0126; WM_CHANGEUISTATE = $ 0127; WM_UPDATEUISTATE = $ 0128; WM_QUERYUISTATE = $ 0129; WM_CTLCOLORMSGBOX = $ 0132; draw message box windows Before sending this message to the owner window of the message box, by responding to this message, the owner window can set the text and background color WM_CTLCOLOREDIT = $ 0133 by using the handle of a given related display device. The editing control will be drawn to the parent window to send this message; by responding to this message, the owner window can set the edit box for text and background color WM_CTLCOLORLISTBOX WM_CTLCOLORLISTBOX WM_CTLCOLOSTBOX = $ 0134 When a list box control will send this message to the parent window to send this message before being drawn; by responding to this message, the owner window can set the list box for text and background color wm_ctlcolorbtn 设置 by using the handle of a given related display device. = $ 0135; When a button control will send this message to the parent window; by responding to this message, the owner window can set the text and background with the handle of the given related display device. Color WM_CTLCOLORDLG = $ 0136; When a dialog control will send this message to its parent window before being drawn; by responding to this message, the owner window can set the conversation by using the handle of a given relevant display device. Box text background color WM_CTLCOLORSCROLLBAR = $ 0137; When a scroll strip control will send this message to the parent window; by responding to this message, the owner window can be set by using the handle of the given related display device. Background color WM_CTLCOLORSTAIC = $ 0138; When a static control will be drawn, send this message to its parent window; by responding to this message, the owner window can be used by the handle of the given display device. Set the text and background color of the static control WM_Mousefirst = $ 0200; WM_MOUSEMOVE = $ 0200; // WM_LBUTTONDOWN = $ 0201; // Press the left mouse button WM_LBUTTONUP = $ 0202; // Release the left mouse left button WM_LBUTTONDBLCLK = $ 0203; // Double click the left mouse left button WM_RBUTTONDOWN = $ 0204; // Press the right mouse button WM_RBUTTONUP = $ 0205; // Release mouse right button WM_RBUTTONDBLCLK = $ 0206; // Double click on the mouse Right button WM_MBUTTONDOWN = $ 0207; // Press the mouse button WM_MBUTTONUP = $ 0208; // Release mouse button WM_MBUTTONDBLCLK = $ 0209; / / Double click on the mouse button WM_Mousewheel = $ 020A; send this message when the mouse wheel is rotated, the current focus control WM_MouseLast = $ 020 A; WM_ParentNotify = $ 0210; when the MDI sub-window is created or destroyed,
Or the user presses the mouse button and the cursor sends this message to its parent window WM_EnterMenuloop = $ 0211; send this message to notify the application's main window That has entered the menu loop mode WM_EXITMENULOOP = $ 0212; Send this message to notify the application's main window That has exited menu loop mode WM_NEXTMENU = $ 0213; WM_SIZING = 532; When the user is adjusting the window, send this message to the window; This message application can monitor window sizes and locations can also be modified; send this message to the window When it lost the captured mouse; WM_MOVING = 534; when the user is moving the window Send this message, you can monitor the window size and location can also be modified; WM_powerbroadcast = 536; This message is sent to the application to notify it about power management events; WM_DEviceChange = 537; When the hardware configuration changes, this message is sent to the application or device driver WM_IME_STARTCOMPSITION = = $ 010d; WM_IME_ENDComposition = $ 010E; WM_IME_COMPSITION = = $ 010f; WM_IME_KEYLAST = $ 010f; WM_IME_SETCONTEXT = $ 0281; WM_IME_NOTIFY = $ 0282; WM_IME_CONTROL = $ 0283; WM_IME_COMPSITIONFULL = $ 0284; WM_IME_SELECT = $ 0285; WM_IME_CHAR = $ 0286; WM_IME_REQUEST = $ 0288 WM_IME_KEYDOWN = $ 0290; WM_IME_KEYUP = $ 0291; WM_mdicreate = $ 0220; application sends this message to the multi-document customer window to create A MDI sub-window WM_MDIDESTROY = $ 0221; the application sends this message to the multi-document customer window to close a MDI sub-window WM_MDIACTIVATE = $ 0222; application The program sends this message to inform the client window to activate another MDI sub-window, after the customer window receives this message, it gives the MDI sub-window (not activated) to activate it; WM_MDIRESTORE = $ 0223; Program Send this message to the MDI Customer window to restore the sub-window from the maximum minimization to the original size WM_MDINEXT = $ 0224; program sends this message to the MDI customer window to activate the next or the previous window WM_MDIMAXIMIZE = $ 0225; Program Send this message to MDI customer window to maximize an MDI sub-window; WM_MDITILE = $ 0226; program sends this message to the MDI customer window to rearrange all MDI sub-window WM_MDICASCADE = $ 0227; Program Send this message to the MDI customer window rearrange all MDI sub-window WM_MDIICONARRANGE = $ 0228; program sends this message to the MDI customer window Replace all minimized MDI sub-window WM_MDIGETACTIVE = $ 0229; Program Send this message to the MDI customer window to find the handle of the activated sub-window WM_MDisetMenu = $ 0230;
The program sends this message to the MDI customer window with the MDI menu instead of the menu of the child window WM_ENTERSIZEMOVE = $ 0231; WM_EXITSIZEMOVE = $ 0232; WM_DROPFILES = $ 0233; WM_MDIREFRESHMENU = = $ 0234; WM_Mousehover = $ 02A1; WM_MouseLeave = $ 02A3; WM_CUT = $ 0300; program sends this message to an edit box or ComboBox to delete the currently selected text WM_COPY = $ 0301; Program Send this message to a edit box or ComboBox to copy the currently selected text to the clipboard WM_PASTE = $ 0302; program sends this message to EditControl or ComboBox gets data from the clipboard WM_CLEAR = $ 0303; Program Send this message to clear the currently selected content to EditControl or ComboBox; WM_UNDO = $ 0304; Program Send this message to editcontrol or comboBox revoke last Operation WM_Renderformat = $ 0305 WM_RENDERALLFORMATS = $ 0306; WM_DESTROYCLIPBOARD = $ 0307; send this message to the owner of the clipboard to the owner of the clipboard WM_DRAWCLIPBOARD = $ 0308 when calling the enptyclipboard function; send this message to the clipboard observation chain when the content changes of the clipboard Window; it allows the window to display the window to display the new content of the clipboard; WM_PaintClipboard = $ 0309; when the clipboard contains data in the CF_OWNERDIPLAY format and the clipboard observation window needs to be heavy; WM_VScrollClipboard = $ 030A; WM_SIZECLIPBOARD = $ 030B; When the clipboard contains data in the CF_OWNERDIPLAY format and the size of the clipboard observation window has changed this message is sent to the owner of the clipboard by clipboard watch window; WM_ASKCBFORMATNAME = $ 030c This message is sent to the owner of the clipboard to the owner of the clipboard to request a clipboard of the clipboard to request a clipboard of the clipboard. Plan view The first window of the chain; WM_HSCROLLLPBOARD = $ 030E; this message sends the owner of the clipboard through a clipboard watch window; it occurs when the clipboard contains data in the cfownerdispaly format and has an event on the clipboard viewing window The horizontal scroll bar; the owner should scroll the clipboard image and update the value of the scroll bar; WM_QUERYNEWPALETTE = $ 030F; This message is sent to the window to receive the focus, this message can make the window when receiving the focus Have the opportunity to achieve his logical palette WM_PALETTEISCHANGING = $ 0310; when an application is to implement its logical palette, send this message to notify all applications WM_Palettechanged = $ 0311; this message is in a window with focus Realize its logical palette, send this message to all top-level and overlapping windows to change the system palette WM_hotKey = $ 0312; when the user presses the hotkey registered by the RegisterhotKey function This message is WM_PRINT = 791; Application Send this message only as part of the application is drawn only when Windows or other applications issues a request to draw a request; WM_PrintClient = 792; WM_Handheldfirst = 856 WM_Handheldlast = 863;
WM_PENWINFIRST = $ 0380; WM_PENWINLAST = $ 038F; WM_COALESCE_FIRST = $ 0390; WM_COALESCE_LAST = $ 039F; WM_DDE_FIRST = $ 03E0; WM_DDE_INITIATE = WM_DDE_FIRST 0; A DDE client submits this message to start a session of the server to respond to the specified program and theme name; WM_DDE_TERMINATE = WM_DDE_FIRST 1; a DDE application (whether a customer or server) submits this message to terminate one Session; WM_DDE_ADVISE = WM_DDE_FIRST 2; a DDE client submits this message to a DDE service program to request the server whenever the data item changes when the data item changes it WM_DDE_UNADVISE = = WM_DDE_First 3; a DDE client passer Message Notifies a DDE Service Upon not update the specified item or a special clipboard format item WM_DDE_ACK = = WM_DDE_FIRST 4; this message notifies a DDE (Dynamic Data Exchange) program has received and is processed WM_DDE_POKE , WM_DDE_EXECUTE, WM_DDE_DATA, WM_DDE_ADVISE, WM_DDE_UNADE_ADVISE, WM_DDE_UNADVISE, or WM_DDE_INITIAT message WM_DDE_DATA = WM_DDE_FIRST 5; a DDE service program submits this message to the DDE client to pass a data item to a customer or notify the customer's available data item WM_DDE_REQUEST = WM_DDE_FIRST 6; a DDE client submits this message to a DDE service program to request a value of a data item; WM_DDE_POKE = WM_DDE_FIRST 7; a DDE client submits this message to one DDE service, customer uses this message to request the server to receive an unadiable data item; the server passes the answer WM_DDE_ACK message prompt whether it receives this data item; WM_DDE_EXECUTE = WM_DDE_FIRST 8; a DDE client submit this message Give a DDE service program to send a string to the server to let it be in the serial command, the server responds by submitting the WM_DDE_ACK message; WM_DDE_LAST = WM_DD E_FIRST 8; WM_APP = $ 8000; WM_USER = $ 0400; this message can help application custom private messages; / notification message means a message, a child within a window There are some things that have occurred and need to inform the parent window. The notification message is only available for standard window controls such as buttons, list boxes, combo boxs, edit boxes, and Windows 95 public controls such as tree views, list views, etc. For example, click or double-click a control, select some text in the control, and the scroll bar of the operating control will generate a notification message.
