求助：error C2065: 'CMainFrame' : undeclared identifier

lucykingoo 2009-08-21 01:18:14

代码和错误提示在下面，已经加入#include "MainFrm.h",实在不知道问题出在哪里，希望大家能帮帮我，谢谢了

{
//获取文档类指针
CSecondDoc *pDoc=GetDocument();
//获取ImgCenterDib类对象m_dib的指针，访问当前DIB数据
ImgCenterDib *pDib=pDoc->GetPDib();

//只处理彩色图像
if(pDib->m_nBitCount!=24){
::MessageBox(0,"只处理彩色图像",MB_OK,0);
return ;
}

//将pDib中的图像数据作为输入数据，调用带参数的构造函数，
//定义GrayTrans类的对象graytrans
GrayTrabs graytrans(pDib->GetDimensions(),pDib->m_nBitCount,
pDib->m_lpColorTable, pDib->m_pImgData);

//彩色变灰度格式
graytrans.ColorToGray();

//建立一个新视图，显示分割结果
CMainFrame* pFrame = (CMainFrame *)(AfxGetApp()->m_pMainWnd);

//发送新建文件的消息，创建一个新的文档-视图
pFrame->SendMessage(WM_COMMAND, ID_FILE_NEW);

//获取新建视图指针
CSecondView* pView=(CSecondView*)pFrame->MDIGetActive()->GetActiveView();

//获取相关联的新的文档类指针
CSecondDoc* pDocNew=pView->GetDocument();

//获取新文档中的ImgCenterDib类对象指针
ImgCenterDib *dibNew=pDocNew->GetPDib();

//将变换后的输出图像作为新建文档的DIB进行显示
dibNew->ReplaceDib(graytrans.GetDimensions(),graytrans.m_nBitCountOut,
graytrans.m_lpColorTableOut, graytrans.m_pImgDataOut);

//设置滚动窗口
pView->OnInitialUpdate();

//文档数据置脏，提示存盘信息
pDocNew->SetModifiedFlag(TRUE);

//各视图刷新显示
pDocNew->UpdateAllViews(pView);
}

C:\Documents and Settings\Administrator\桌面\second\secondView.cpp(243) : error C2065: 'CMainFrame' : undeclared identifier
C:\Documents and Settings\Administrator\桌面\second\secondView.cpp(243) : error C2065: 'pFrame' : undeclared identifier
C:\Documents and Settings\Administrator\桌面\second\secondView.cpp(243) : error C2059: syntax error : ')'
C:\Documents and Settings\Administrator\桌面\second\secondView.cpp(246) : error C2227: left of '->SendMessageA' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\second\secondView.cpp(249) : error C2227: left of '->MDIGetActive' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\second\secondView.cpp(249) : error C2227: left of '->GetActiveView' must point to class/struct/union
Error executing cl.exe.

second.exe - 6 error(s), 0 warning(s)

...全文