如何修改CEdit类自带的Menu,我想让其中一些不可用.

[冰霜icefrost]

如何修改CEdit类自带的Menu,我想让其中一些不可用.

[冰霜icefrost]

谢谢,
不过上面的方法是通过重新生成自己的Menu,并没有使用CEdit类的Menu呀.

[dysxq]

试试WM_INITMENUPOPUP,如果还不行,可能只能用hook了

[jamesjinyongming]

还得重写，继承一下，很简单的

[wxshzf]

我也有此需求

[Y___Y]

http://www.codeproject.com/editctrl/cmenuedit.asp


The Header file MenuEdit.h : header file
// Written by PJ Arends
// [e-mail]
// http://www3.telus.net/pja/

#if !defined(AFX_MENUEDIT_H__8EA53611_FD2B_11D4_B625_D04FA07D2222__INCLUDED_)
#define AFX_MENUEDIT_H__8EA53611_FD2B_11D4_B625_D04FA07D2222__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif

class CMenuEdit : public CEdit
{
public:
CMenuEdit() {};

protected:
virtual BOOL OnCommand(WPARAM wParam, LPARAM lParam);
afx_msg void OnContextMenu(CWnd* pWnd, CPoint point);

DECLARE_MESSAGE_MAP()
};

#endif

The Source file
// MenuEdit.cpp : implementation file
// Written by PJ Arends
// [e-mail]
// http://www3.telus.net/pja/

#include "stdafx.h"
#include "MenuEdit.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

#define MES_UNDO _T("&Undo")
#define MES_CUT _T("Cu&t")
#define MES_COPY _T("©")
#define MES_PASTE _T("&Paste")
#define MES_DELETE _T("&Delete")
#define MES_SELECTALL _T("Select &All")
#define ME_SELECTALL WM_USER + 0x7000

BEGIN_MESSAGE_MAP(CMenuEdit, CEdit)
ON_WM_CONTEXTMENU()
END_MESSAGE_MAP()

void CMenuEdit::OnContextMenu(CWnd* pWnd, CPoint point)
{
SetFocus();
CMenu menu;
menu.CreatePopupMenu();
BOOL bReadOnly = GetStyle() & ES_READONLY;
DWORD flags = CanUndo() && !bReadOnly ? 0 : MF_GRAYED;
menu.InsertMenu(0, MF_BYPOSITION | flags, EM_UNDO,
MES_UNDO);

menu.InsertMenu(1, MF_BYPOSITION | MF_SEPARATOR);

DWORD sel = GetSel();
flags = LOWORD(sel) == HIWORD(sel) ? MF_GRAYED : 0;
menu.InsertMenu(2, MF_BYPOSITION | flags, WM_COPY,
MES_COPY);

flags = (flags == MF_GRAYED || bReadOnly) ? MF_GRAYED : 0;
menu.InsertMenu(2, MF_BYPOSITION | flags, WM_CUT,
MES_CUT);
menu.InsertMenu(4, MF_BYPOSITION | flags, WM_CLEAR,
MES_DELETE);

flags = IsClipboardFormatAvailable(CF_TEXT) &&
!bReadOnly ? 0 : MF_GRAYED;
menu.InsertMenu(4, MF_BYPOSITION | flags, WM_PASTE,
MES_PASTE);

menu.InsertMenu(6, MF_BYPOSITION | MF_SEPARATOR);

int len = GetWindowTextLength();
flags = (!len || (LOWORD(sel) == 0 && HIWORD(sel) ==
len)) ? MF_GRAYED : 0;
menu.InsertMenu(7, MF_BYPOSITION | flags, ME_SELECTALL,
MES_SELECTALL);

menu.TrackPopupMenu(TPM_LEFTALIGN | TPM_LEFTBUTTON |
TPM_RIGHTBUTTON, point.x, point.y, this);
}

BOOL CMenuEdit::OnCommand(WPARAM wParam, LPARAM lParam)
{
switch (LOWORD(wParam))
{
case EM_UNDO:
case WM_CUT:
case WM_COPY:
case WM_CLEAR:
case WM_PASTE:
return SendMessage(LOWORD(wParam));
case ME_SELECTALL:
return SendMessage (EM_SETSEL, 0, -1);
default:
return CEdit::OnCommand(wParam, lParam);
}

[pb520wf]

是啊，重写类是一个不错的方法，而且更方便。

[HuWenjin]

应该直接处理CEdit::OnContextMenu 就可以了

[BBirdlyh]

OnContextMenu

[冰霜icefrost]

我已经重写一个类了,只是不知道继承哪个方法,修改哪个函数.