For example:SendMessage(hWndCB, CB_ADDSTRING, 0, (LPARAM)lpszString);
sendmessage. 去跟一下MFC的代码就知道了，MFC也是用sendmessage实现的。
SendMessage! 看来今天抢分的人不少！
SendMessage！ 同意 DentistryDoctor(雅克医生<改行做程序员了>)
SendMessage() SendMessage( (HWND) hWnd, // handle to destination window CB_ADDSTRING, // message to send (WPARAM) wParam, // not used; must be zero (LPARAM) lParam // string to add (LPCTSTR) ); Parameters wParam This parameter is not used. lParam Pointer to the null-terminated string to be added. If you create the combo box with an owner-drawn style but without the CBS_HASSTRINGS style, the value of the lParam parameter is stored as item data rather than the string it would otherwise point to. The item data can be retrieved or modified by sending the CB_GETITEMDATA or CB_SETITEMDATA message. Return Values The return value is the zero-based index to the string in the list box of the combo box. If an error occurs, the return value is CB_ERR. If insufficient space is available to store the new string, it is CB_ERRSPACE. Res If you create an owner-drawn combo box with the CBS_SORT style but without the CBS_HASSTRINGS style, the WM_COMPAREITEM message is sent one or more times to the owner of the combo box so the new item can be properly placed in the list. To insert a string at a specific location within the list, use the CB_INSERTSTRING message. If the combo box has WS_HSCROLL style and you add a string wider than the combo box, send a LB_SETHORIZONTALEXTENT message to ensure the horizontal scrollbar appears.
去跟一下MFC的代码就知道了，MFC也是用sendmessage实现的。
看来今天抢分的人不少！
同意
DentistryDoctor(雅克医生<改行做程序员了>)
SendMessage(
(HWND) hWnd, // handle to destination window
CB_ADDSTRING, // message to send
(WPARAM) wParam, // not used; must be zero
(LPARAM) lParam // string to add (LPCTSTR)
);
Parameters
wParam
This parameter is not used.
lParam
Pointer to the null-terminated string to be added. If you create the combo box with an owner-drawn style but without the CBS_HASSTRINGS style, the value of the lParam parameter is stored as item data rather than the string it would otherwise point to. The item data can be retrieved or modified by sending the CB_GETITEMDATA or CB_SETITEMDATA message.
Return Values
The return value is the zero-based index to the string in the list box of the combo box. If an error occurs, the return value is CB_ERR. If insufficient space is available to store the new string, it is CB_ERRSPACE. Res
If you create an owner-drawn combo box with the CBS_SORT style but without the CBS_HASSTRINGS style, the WM_COMPAREITEM message is sent one or more times to the owner of the combo box so the new item can be properly placed in the list. To insert a string at a specific location within the list, use the CB_INSERTSTRING message. If the combo box has WS_HSCROLL style and you add a string wider than the combo box, send a LB_SETHORIZONTALEXTENT message to ensure the horizontal scrollbar appears.
CB_DELETESTRING
CB_DIR
CB_FINDSTRING
CB_FINDSTRINGEXACT
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_RESETCONTENT
CB_SELECTSTRING
CB_SETCURSEL
CB_SETDROPPEDWIDTH
CB_SETEDITSEL
CB_SETEXTENDEDUI
CB_SETHORIZONTALEXTENT
CB_SETITEMDATA
CB_SETITEMHEIGHT
CB_SETLOCALE
CB_SETTOPINDEX
CB_SHOWDROPDOWN
CBN_CLOSEUP
CBN_DBLCLK
CBN_DROPDOWN
CBN_EDITCHANGE
CBN_EDITUPDATE
CBN_ERRSPACE
CBN_KILLFOCUS
CBN_SELCHANGE
CBN_SELENDCANCEL
CBN_SELENDOK
CBN_SETFOCUS
WM_COMPAREITEM
WM_DRAWITEM
WM_MEASUREITEM