SendMessage
Eric Cadwell
Text Viewer.
public class WinAPI
{
public const int WM_CLOSE = 0x0010;
[DllImport ("user32.dll")]
public static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, int
lParam);
}
Example:
WinAPI.SendMessage(this.Handle, WinAPI.WM_CLOSE, 0, 0);
If you search MSDN for WM_CLOSE you'll find this under the Windows User
Interface link.
Minimum DLL Version None
Header Declared in Winuser.h, include Windows.h
Minimum operating systems Windows 95, Windows NT 3.1
HTH;
Eric Cadwell
http://www.origincontrols.com
Bob Powell [MVP]
(after my signature)
--
Bob Powell [MVP]
Visual C#, System.Drawing
All you ever wanted to know about ListView custom drawing is in Well Formed.
http://www.bobpowell.net/currentissue.htm
Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/gdiplus_faq.htm
Read my Blog at http://bobpowelldotnet.blogspot.com
---------------------------------------------------
public enum WMDefs
{
WM_NULL =0x0000,
WM_CREATE =0x0001,
WM_DESTROY =0x0002,
WM_MOVE =0x0003,
WM_SIZE =0x0005,
WM_ACTIVATE =0x0006,
WA_INACTIVE =0,
WA_ACTIVE =1,
WA_CLICKACTIVE =2,
WM_SETFOCUS =0x0007,
WM_KILLFOCUS =0x0008,
WM_ENABLE =0x000A,
WM_SETREDRAW =0x000B,
WM_SETTEXT =0x000C,
WM_GETTEXT =0x000D,
WM_GETTEXTLENGTH =0x000E,
WM_PAINT =0x000F,
WM_CLOSE =0x0010,
WM_QUERYENDSESSION =0x0011,
WM_QUERYOPEN =0x0013,
WM_ENDSESSION =0x0016,
WM_QUIT =0x0012,
WM_ERASEBKGND =0x0014,
WM_SYSCOLORCHANGE =0x0015,
WM_SHOWWINDOW =0x0018,
WM_WININICHANGE =0x001A,
WM_SETTINGCHANGE =WM_WININICHANGE,
WM_DEVMODECHANGE =0x001B,
WM_ACTIVATEAPP =0x001C,
WM_FONTCHANGE =0x001D,
WM_TIMECHANGE =0x001E,
WM_CANCELMODE =0x001F,
WM_SETCURSOR =0x0020,
WM_MOUSEACTIVATE =0x0021,
WM_CHILDACTIVATE =0x0022,
WM_QUEUESYNC =0x0023,
WM_GETMINMAXINFO =0x0024,
WM_PAINTICON =0x0026,
WM_ICONERASEBKGND =0x0027,
WM_NEXTDLGCTL =0x0028,
WM_SPOOLERSTATUS =0x002A,
WM_DRAWITEM =0x002B,
WM_MEASUREITEM =0x002C,
WM_DELETEITEM =0x002D,
WM_VKEYTOITEM =0x002E,
WM_CHARTOITEM =0x002F,
WM_SETFONT =0x0030,
WM_GETFONT =0x0031,
WM_SETHOTKEY =0x0032,
WM_GETHOTKEY =0x0033,
WM_QUERYDRAGICON =0x0037,
WM_COMPAREITEM =0x0039,
WM_GETOBJECT =0x003D,
WM_COMPACTING =0x0041,
WM_COMMNOTIFY =0x0044,
WM_WINDOWPOSCHANGING =0x0046,
WM_WINDOWPOSCHANGED =0x0047,
WM_POWER =0x0048,
PWR_OK =1,
PWR_FAIL =0xffff,
PWR_SUSPENDREQUEST =1,
PWR_SUSPENDRESUME =2,
PWR_CRITICALRESUME =3,
WM_COPYDATA =0x004A,
WM_CANCELJOURNAL =0x004B,
WM_NOTIFY =0x004E,
WM_INPUTLANGCHANGEREQUEST =0x0050,
WM_INPUTLANGCHANGE =0x0051,
WM_TCARD =0x0052,
WM_HELP =0x0053,
WM_USERCHANGED =0x0054,
WM_NOTIFYFORMAT =0x0055,
NFR_ANSI =1,
NFR_UNICODE =2,
NF_QUERY =3,
NF_REQUERY =4,
WM_CONTEXTMENU =0x007B,
WM_STYLECHANGING =0x007C,
WM_STYLECHANGED =0x007D,
WM_DISPLAYCHANGE =0x007E,
WM_GETICON =0x007F,
WM_SETICON =0x0080,
WM_NCCREATE =0x0081,
WM_NCDESTROY =0x0082,
WM_NCCALCSIZE =0x0083,
WM_NCHITTEST =0x0084,
WM_NCPAINT =0x0085,
WM_NCACTIVATE =0x0086,
WM_GETDLGCODE =0x0087,
WM_SYNCPAINT =0x0088,
WM_NCMOUSEMOVE =0x00A0,
WM_NCLBUTTONDOWN =0x00A1,
WM_NCLBUTTONUP =0x00A2,
WM_NCLBUTTONDBLCLK =0x00A3,
WM_NCRBUTTONDOWN =0x00A4,
WM_NCRBUTTONUP =0x00A5,
WM_NCRBUTTONDBLCLK =0x00A6,
WM_NCMBUTTONDOWN =0x00A7,
WM_NCMBUTTONUP =0x00A8,
WM_NCMBUTTONDBLCLK =0x00A9,
WM_NCXBUTTONDOWN =0x00AB,
WM_NCXBUTTONUP =0x00AC,
WM_NCXBUTTONDBLCLK =0x00AD,
WM_INPUT =0x00FF,
WM_KEYFIRST =0x0100,
WM_KEYDOWN =0x0100,
WM_KEYUP =0x0101,
WM_CHAR =0x0102,
WM_DEADCHAR =0x0103,
WM_SYSKEYDOWN =0x0104,
WM_SYSKEYUP =0x0105,
WM_SYSCHAR =0x0106,
WM_SYSDEADCHAR =0x0107,
WM_UNICHAR =0x0109,
WM_KEYLAST =0x0108,
UNICODE_NOCHAR =0xFFFF,
WM_IME_STARTCOMPOSITION =0x010D,
WM_IME_ENDCOMPOSITION =0x010E,
WM_IME_COMPOSITION =0x010F,
WM_IME_KEYLAST =0x010F,
WM_INITDIALOG =0x0110,
WM_COMMAND =0x0111,
WM_SYSCOMMAND =0x0112,
WM_TIMER =0x0113,
WM_HSCROLL =0x0114,
WM_VSCROLL =0x0115,
WM_INITMENU =0x0116,
WM_INITMENUPOPUP =0x0117,
WM_MENUSELECT =0x011F,
WM_MENUCHAR =0x0120,
WM_ENTERIDLE =0x0121,
WM_MENURBUTTONUP =0x0122,
WM_MENUDRAG =0x0123,
WM_MENUGETOBJECT =0x0124,
WM_UNINITMENUPOPUP =0x0125,
WM_MENUCOMMAND =0x0126,
WM_CHANGEUISTATE =0x0127,
WM_UPDATEUISTATE =0x0128,
WM_QUERYUISTATE =0x0129,
UIS_SET =1,
UIS_CLEAR =2,
UIS_INITIALIZE =3,
UISF_HIDEFOCUS =0x1,
UISF_HIDEACCEL =0x2,
UISF_ACTIVE =0x4,
WM_CTLCOLOR =0x0019,
WM_CTLCOLORMSGBOX =0x0132,
WM_CTLCOLOREDIT =0x0133,
WM_CTLCOLORLISTBOX =0x0134,
WM_CTLCOLORBTN =0x0135,
WM_CTLCOLORDLG =0x0136,
WM_CTLCOLORSCROLLBAR =0x0137,
WM_CTLCOLORSTATIC =0x0138,
MN_GETHMENU =0x01E1,
WM_MOUSEFIRST =0x0200,
WM_MOUSEMOVE =0x0200,
WM_LBUTTONDOWN =0x0201,
WM_LBUTTONUP =0x0202,
WM_LBUTTONDBLCLK =0x0203,
WM_RBUTTONDOWN =0x0204,
WM_RBUTTONUP =0x0205,
WM_RBUTTONDBLCLK =0x0206,
WM_MBUTTONDOWN =0x0207,
WM_MBUTTONUP =0x0208,
WM_MBUTTONDBLCLK =0x0209,
WM_MOUSEWHEEL =0x020A,
WM_XBUTTONDOWN =0x020B,
WM_XBUTTONUP =0x020C,
WM_XBUTTONDBLCLK =0x020D,
WM_MOUSELAST =0x020D,
WHEEL_DELTA =120,
XBUTTON1 =0x0001,
XBUTTON2 =0x0002,
WM_PARENTNOTIFY =0x0210,
WM_ENTERMENULOOP =0x0211,
WM_EXITMENULOOP =0x0212,
WM_NEXTMENU =0x0213,
WM_SIZING =0x0214,
WM_CAPTURECHANGED =0x0215,
WM_MOVING =0x0216,
WM_POWERBROADCAST =0x0218,
PBT_APMQUERYSUSPEND =0x0000,
PBT_APMQUERYSTANDBY =0x0001,
PBT_APMQUERYSUSPENDFAILED =0x0002,
PBT_APMQUERYSTANDBYFAILED =0x0003,
PBT_APMSUSPEND =0x0004,
PBT_APMSTANDBY =0x0005,
PBT_APMRESUMECRITICAL =0x0006,
PBT_APMRESUMESUSPEND =0x0007,
PBT_APMRESUMESTANDBY =0x0008,
PBTF_APMRESUMEFROMFAILURE =0x00000001,
PBT_APMBATTERYLOW =0x0009,
PBT_APMPOWERSTATUSCHANGE =0x000A,
PBT_APMOEMEVENT =0x000B,
PBT_APMRESUMEAUTOMATIC =0x0012,
WM_DEVICECHANGE =0x0219,
WM_MDICREATE =0x0220,
WM_MDIDESTROY =0x0221,
WM_MDIACTIVATE =0x0222,
WM_MDIRESTORE =0x0223,
WM_MDINEXT =0x0224,
WM_MDIMAXIMIZE =0x0225,
WM_MDITILE =0x0226,
WM_MDICASCADE =0x0227,
WM_MDIICONARRANGE =0x0228,
WM_MDIGETACTIVE =0x0229,
WM_MDISETMENU =0x0230,
WM_ENTERSIZEMOVE =0x0231,
WM_EXITSIZEMOVE =0x0232,
WM_DROPFILES =0x0233,
WM_MDIREFRESHMENU =0x0234,
WM_IME_SETCONTEXT =0x0281,
WM_IME_NOTIFY =0x0282,
WM_IME_CONTROL =0x0283,
WM_IME_COMPOSITIONFULL =0x0284,
WM_IME_SELECT =0x0285,
WM_IME_CHAR =0x0286,
WM_IME_REQUEST =0x0288,
WM_IME_KEYDOWN =0x0290,
WM_IME_KEYUP =0x0291,
WM_MOUSEHOVER =0x02A1,
WM_MOUSELEAVE =0x02A3,
WM_NCMOUSELEAVE =0x02A2,
WM_WTSSESSION_CHANGE =0x02B1,
WM_TABLET_FIRST =0x02c0,
WM_TABLET_LAST =0x02df,
WM_CUT =0x0300,
WM_COPY =0x0301,
WM_PASTE =0x0302,
WM_CLEAR =0x0303,
WM_UNDO =0x0304,
WM_RENDERFORMAT =0x0305,
WM_RENDERALLFORMATS =0x0306,
WM_DESTROYCLIPBOARD =0x0307,
WM_DRAWCLIPBOARD =0x0308,
WM_PAINTCLIPBOARD =0x0309,
WM_VSCROLLCLIPBOARD =0x030A,
WM_SIZECLIPBOARD =0x030B,
WM_ASKCBFORMATNAME =0x030C,
WM_CHANGECBCHAIN =0x030D,
WM_HSCROLLCLIPBOARD =0x030E,
WM_QUERYNEWPALETTE =0x030F,
WM_PALETTEISCHANGING =0x0310,
WM_PALETTECHANGED =0x0311,
WM_HOTKEY =0x0312,
WM_PRINT =0x0317,
WM_PRINTCLIENT =0x0318,
WM_APPCOMMAND =0x0319,
WM_THEMECHANGED =0x031A,
WM_HANDHELDFIRST =0x0358,
WM_HANDHELDLAST =0x035F,
WM_AFXFIRST =0x0360,
WM_AFXLAST =0x037F,
WM_PENWINFIRST =0x0380,
WM_PENWINLAST =0x038F,
WM_USER =0x0400,
WM_REFLECT =0x2000,
WM_APP =0x8000
}
---------------------------------------------------
"awatkins" <anon...@discussions.microsoft.com> wrote in message
news:D24CCC5D-BF5C-49E5...@microsoft.com...
> I am trying to find info on the SendMessage API call. I think I have the
declaration correct:
> [DllImport("coredll",EntryPoint="SendMessage")]
> public extern static int SendMessage(IntPtr hwnd, uint msg, uint
wParam, uint lParam);
>
> And from what I can gather, I need to send the WM_CLOSE command. I do not
fully understand how this works, and I can't find what value WM_CLOSE is
supposed to be set for. Can anyone explain all of this to me?
>
Armand du Plessis
http://www.pinvoke.net
[DllImport("user32.dll")]
static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, UIntPtr wParam,
IntPtr lParam);
"Bob Powell [MVP]" <bob@_spamkiller_bobpowell.net> wrote in message
news:%23sbO3H%23JEH...@TK2MSFTNGP11.phx.gbl...