怎么在已经写好的mfc程序中增加一个按钮功能？

在Test.cpp中添加如下代码：

[cpp] view plain copy print?

CString CTestDlg::brow(LPCTSTR filter)

{

OPENFILENAME ofn

TCHAR szFilename[512]=_T("")

ZeroMemory(&ofn, sizeof(OPENFILENAME))

ofn.lStructSize = sizeof(OPENFILENAME)

ofn.hwndOwner = ::AfxGetMainWnd()->m_hWnd

ofn.lpstrFile = szFilename

ofn.nMaxFile = sizeof(szFilename)

ofn.lpstrFilter = filter

ofn.nFilterIndex = 1

ofn.lpstrFileTitle = NULL

ofn.nMaxFileTitle = 0

ofn.lpstrInitialDir = NULL

ofn.lpstrDefExt=NULL

ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST | OFN_HIDEREADONLY

GetOpenFileName(&ofn)

if(lstrlen(ofn.lpstrFile)>0)

{

return ofn.lpstrFile

}

return _T("")

}

[cpp] view plain copy print?

void CTestDlg::OnClickedButton1()

{

// TODO: 在此添加控件通知处理程序代码

UpdateData(TRUE)

m_File=brow(_T("所有文件(*.*)|*.*\0\0"))

UpdateData(false)

}

[cpp] view plain copy print?

在TestDlg.h添加如下代码：

[cpp] view plain copy print?

CString brow(LPCTSTR filter)

在ResourceView里,双击Toolbar,双击IDR_MAINFRAME,

就出现了工具条编辑界面,默认的最右边那个灰按钮就是用来添加新按钮的,

双击它,会d出对话框让你给新按钮取个ID,取完后关掉对话框

就会多出一个按钮,你可以在这个界面下给按钮画下简单的图案

m_MusicData.clear() // vector<CString>m_MusicData//存储歌曲列表数据，以便下次读取

// TODO: 在此添加控件通知处理程序代码

CFileDialog m_Dlg(TRUE, NULL, NULL, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT

| OFN_ALLOWMULTISELECT, NULL, NULL)

if (m_Dlg.DoModal() == IDOK)

{

POSITION pos

pos = m_Dlg.GetStartPosition()

while (pos)

{

CString m_Path = m_Dlg.GetNextPathName(pos)

//判断是否为MP3文件

if (m_Path.Find(_T(".mp3"))<0)

{

continue

}else

{

//这里去添加到列表

m_listbox.InsertString(m_listbox.GetCount(), m_Path)

m_listbox.SetCurSel(m_listbox.GetCount() - 1)

}

}

}

//这里去更新歌曲列表数据

for (int i = 0i <m_listbox.GetCount()i++)

{

CString str

m_listbox.GetText(i,str)

m_MusicData.push_back(str)

}

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