EDIT CONTROL اعلان ( Notification) / محدودیت تکست / ارسال تکست Edit به کپشن پنجره اصلی

EN_CHANGE 

wParam

The LOWORD contains the identifier of the edit control. The HIWORD specifies the notification code.

lParam

A handle to the edit control.

'  Edit styles const'

ES_LEFT = 0x0000

ES_CENTER = 0x0001

ES_RIGHT = 0x0002

ES_MULTILINE = 0x0004

ES_UPPERCASE = 0x0008

ES_LOWERCASE = 0x0010

ES_PASSWORD = 0x0020

ES_AUTOVSCROLL = 0x0040

ES_AUTOHSCROLL = 0x0080

ES_NOHIDESEL = 0x0100

ES_OEMCONVERT = 0x0400

ES_READONLY = 0x0800

ES_WANTRETURN = 0x1000

ES_NUMBER = 0x2000

  Edit notifications const' 

EN_SETFOCUS = 0x0100

EN_KILLFOCUS = 0x0200

EN_CHANGE = 0x0300

EN_UPDATE = 0x0400

EN_ERRSPACE = 0x0500

EN_MAXTEXT = 0x0501

EN_HSCROLL = 0x0601 

EN_VSCROLL = 0x0602

EN_ALIGN_LTR_EC = 0x0700

EN_ALIGN_RTL_EC = 0x0701

  Edit messages const'

EM_GETSEL = 0x00B0

EM_SETSEL = 0x00B1

EM_GETRECT = 0x00B2

EM_SETRECT = 0x00B3

EM_SETRECTNP = 0x00B4

EM_SCROLL = 0x00B5

EM_LINESCROLL = 0x00B6

EM_SCROLLCARET = 0x00B7

EM_GETMODIFY = 0x00B8

EM_SETMODIFY = 0x00B9

EM_GETLINECOUNT = 0x00BA

EM_LINEINDEX = 0x00BB

EM_SETHANDLE = 0x00BC

EM_GETHANDLE = 0x00BD

EM_GETTHUMB = 0x00BE

EM_LINELENGTH = 0x00C1

EM_REPLACESEL = 0x00C2

EM_GETLINE = 0x00C4

EM_LIMITTEXT = 0x00C5

EM_CANUNDO = 0x00C6

EM_UNDO = 0x00C7

EM_FMTLINES = 0x00C8

EM_LINEFROMCHAR = 0x00C9

EM_SETTABSTOPS = 0x00CB EM_SETPASSWORDCHAR = 0x00CC EM_EMPTYUNDOBUFFER = 0x00CD EM_GETFIRSTVISIBLELINE = 0x00CE EM_SETREADONLY = 0x00CF EM_SETWORDBREAKPROC = 0x00D0 EM_GETWORDBREAKPROC = 0x00D1 EM_GETPASSWORDCHAR = 0x00D2 EM_SETMARGINS = 0x00D3

EM_GETMARGINS = 0x00D4

EM_SETLIMITTEXT = EM_LIMITTEXT EM_GETLIMITTEXT = 0x00D5

EM_POSFROMCHAR = 0x00D6

EM_CHARFROMPOS = 0x00D7

EM_SETIMESTATUS = 0x00D8

EM_GETIMESTATUS = 0x00D9

EM_SETCUEBANNER = 0x1501

EM_GETCUEBANNER = 0x1502

EM_LIMITTEXT message 

.Sets the text limit of an edit control

wParam

The maximum number of TCHARs the user can enter. For ANSI text, this is the number of bytes; for Unicode text, this is the number of characters. This number does

.  not include the terminating null character

lParam

.This parameter is not used

) LRESULT WINAPI SendDlgItemMessage
_In_ HWND   hDlg,
_In_ int    nIDDlgItem,
_In_ UINT   Msg,
_In_ WPARAM wParam,
_In_ LPARAM lParam
;(

در InputBox  زیر با کلاس 32770#  که تست شده  در کنترل Edit آن با آیدی 4900 نمی توان بیشتر از 10 کاراکتر واردنمود

Case WM_SHOWWINDOW     

          SendDlgItemMessageA hwnd, 4900, EM_LIMITTEXT, 0, 10