单文档转多文档
来源:百度文库 编辑:神马文学网 时间:2024/04/29 01:34:41
一个VC写的图形程序,原来是单文档结构,现在需要改成多文档的形式,我不想新建一个多文档工程再把代码加过去,那样的话工作量太大。我就把程序中和单文档有关的地方改了下,比如CMainFrame改为从CMDIFrameWnd继承,新增了一个从CMDIChildWnd继承的类CChildFrame,C***App::InitInstance()内一段改为
CMultiDocTemplate* pDocTemplate;
pDocTemplate = new CMultiDocTemplate(
IDR_MAINFRAME,
RUNTIME_CLASS(CChartEditDoc),
RUNTIME_CLASS(CChildFrame), // 原来为RUNTIME_CLASS(CMainFrame)
RUNTIME_CLASS(CChartEditView));
AddDocTemplate(pDocTemplate);
可程序运行倒 if (!ProcessShellCommand(cmdInfo)) return FALSE;就出错了。
哪位知道的告诉我怎么改啊???
http://www.wangchao.net.cn/bbsdetail_746539.html
如果想将一个编好的SDI应用程序转换为MDI,首先要建立一个继承于CMDIChidWnd的类,假设为CChldFrm,在CWinApp中作如下变化。
InitInstance()
{
. ...
//instead of adding CSingleDocTemplate
// Add CMultiDocTemplate.
pDocTemplate = new CMultiDocTemplate(
IDR_MAINFRAME,
RUNTIME_CLASS(CSDIDoc),
RUNTIME_CLASS(CChldFrm),
// For Main MDI Frame change this frame window from
// CFrameWnd derivative ( i.e. CMainFrame )
// to your CMDIChildWnd derived CChldFrm.
RUNTIME_CLASS(CSDIView));
/// After this it is required to create the main frame window
// which will contain all the child windows. Now this window is
// what was initially frame window for SDI.
CMainFrame* pMainFrame = new CMainFrame;
if (!pMainFrame->LoadFrame(IDR_MAINFRAME))
return FALSE;
m_pMainWnd = pMainFrame;
.....
}
在从CMDIFrameWnd中继承的类CMainFrame代替CFramWnd后,所有的类都将从CMDIFrame继承,而不是CFrameWnd,编译运行后你就会发现程序已经从SDI变换到MDI。
注意:在CMainFram中必须将构造函数从private改为public.否则会出错。
帮顶~
up
还有两个地方要注意:
1、在主框架的cpp文件中:IMPLEMENT_DYNCREATE(CMainFrame, CMDIFrameWnd)
2、ProcessShellCommand之前要自己创建主框架:
C/C++ code
CMainFrame* pMainFrame = new CMainFrame;
if (!pMainFrame || !pMainFrame->LoadFrame(IDR_MAINFRAME))
{
delete pMainFrame;
return FALSE;
}
m_pMainWnd = pMainFrame;
CMultiDocTemplate* pDocTemplate;
pDocTemplate = new CMultiDocTemplate(
IDR_MAINFRAME,
RUNTIME_CLASS(CChartEditDoc),
RUNTIME_CLASS(CChildFrame), // 原来为RUNTIME_CLASS(CMainFrame)
RUNTIME_CLASS(CChartEditView));
AddDocTemplate(pDocTemplate);
可程序运行倒 if (!ProcessShellCommand(cmdInfo)) return FALSE;就出错了。
哪位知道的告诉我怎么改啊???
http://www.wangchao.net.cn/bbsdetail_746539.html
如果想将一个编好的SDI应用程序转换为MDI,首先要建立一个继承于CMDIChidWnd的类,假设为CChldFrm,在CWinApp中作如下变化。
InitInstance()
{
. ...
//instead of adding CSingleDocTemplate
// Add CMultiDocTemplate.
pDocTemplate = new CMultiDocTemplate(
IDR_MAINFRAME,
RUNTIME_CLASS(CSDIDoc),
RUNTIME_CLASS(CChldFrm),
// For Main MDI Frame change this frame window from
// CFrameWnd derivative ( i.e. CMainFrame )
// to your CMDIChildWnd derived CChldFrm.
RUNTIME_CLASS(CSDIView));
/// After this it is required to create the main frame window
// which will contain all the child windows. Now this window is
// what was initially frame window for SDI.
CMainFrame* pMainFrame = new CMainFrame;
if (!pMainFrame->LoadFrame(IDR_MAINFRAME))
return FALSE;
m_pMainWnd = pMainFrame;
.....
}
在从CMDIFrameWnd中继承的类CMainFrame代替CFramWnd后,所有的类都将从CMDIFrame继承,而不是CFrameWnd,编译运行后你就会发现程序已经从SDI变换到MDI。
注意:在CMainFram中必须将构造函数从private改为public.否则会出错。
帮顶~
up
还有两个地方要注意:
1、在主框架的cpp文件中:IMPLEMENT_DYNCREATE(CMainFrame, CMDIFrameWnd)
2、ProcessShellCommand之前要自己创建主框架:
C/C++ code
CMainFrame* pMainFrame = new CMainFrame;
if (!pMainFrame || !pMainFrame->LoadFrame(IDR_MAINFRAME))
{
delete pMainFrame;
return FALSE;
}
m_pMainWnd = pMainFrame;