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1 messages
1 total messages Started by �ϵ� Sun, 26 Apr 1998 00:00
VC50����
#1025
Author: �ϵ�
Date: Sun, 26 Apr 1998 00:00
44 lines
2217 bytes
l �������Dialog��Command Update����?
����Cdialog��WM_INITMENUPOPUP, �޸�ʹ��
void CFrameWnd::OnInitMenuPopup (CMenu* pMenu, UINT, BOOL bSysMenu)
�е�source code,����Command Update����

l ���ʵ��Dialog��Menu�����ʹ���ļ�����?
���ʹ���ļ���������CWinApp��Command Update���ƺ�����������Ϣ����ģ�
ON_UPDATE_COMMAND_UI(ID_FILE_MRU_FILE1, OnUpdateRecentFileMenu)
ON_COMMAND_EX_RANGE(ID_FILE_MRU_FILE1,ID_FILE_MRU_FILE16, OnOpenRecentFile)

void CWinApp::OnUpdateRecentFileMenu(CCmdUI* pCmdUI)
{
        ASSERT_VALID(this);
        if (m_pRecentFileList == NULL) // no MRU files
                pCmdUI->Enable(FALSE);
        else
                m_pRecentFileList->UpdateMenu(pCmdUI);
}
/////////////////////////////////////////////////////////////////////////////
// MRU file list default implementation

BOOL CWinApp::OnOpenRecentFile(UINT nID)
{
        ASSERT_VALID(this);
        ASSERT(m_pRecentFileList != NULL);

        ASSERT(nID >= ID_FILE_MRU_FILE1);
        ASSERT(nID < ID_FILE_MRU_FILE1 + (UINT)m_pRecentFileList->GetSize());
        int nIndex = nID - ID_FILE_MRU_FILE1;
        ASSERT((*m_pRecentFileList)[nIndex].GetLength() != 0);

        TRACE2("MRU: open file (%d) '%s'.\n", (nIndex) + 1,
                        (LPCTSTR)(*m_pRecentFileList)[nIndex]);

        if (OpenDocumentFile((*m_pRecentFileList)[nIndex]) == NULL)
                m_pRecentFileList->Remove(nIndex);

        return TRUE;
}
��ΪDialogû���ĵ�����������Ҫ��дOnOpenRecentFile.

--
�� ��Դ:���ϴ�С�ٺ���Ϣ����վ bbs.nju.edu.cn��[FROM: a507yjh.nju.edu]
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