Question

我正在尝试通过使用空白项目创建文本编辑器。我很难全神贯注于SDI。这到底在做什么？还有如何使用这些类？

auto pDocTemplate = new CSingleDocTemplate(
    IDR_MAINFRAME,
    RUNTIME_CLASS(BaseDocument),
    RUNTIME_CLASS(BaseFrame),
    RUNTIME_CLASS(BaseView));

if (!pDocTemplate)
    return FALSE;
AddDocTemplate(pDocTemplate);

我尝试使用这样的文档：

auto xtra = (BaseDocument*)pDocTemplate->OpenDocumentFile(newDlg.currPath);

它返回“无法打开文件”错误。

编辑：当我尝试跳过创建的对话框并仅运行“模板”代码时，到达它时会出现错误

if (!ProcessShellCommand(cmdInfo)) return FALSE;

这是整个应用程序：

BEGIN_MESSAGE_MAP(BaseApp, CWinApp)
ON_COMMAND(ID_FILE_NEW, &CWinApp::OnFileNew)
ON_COMMAND(ID_FILE_OPEN, &CWinApp::OnFileOpen)
END_MESSAGE_MAP()

BaseApp::BaseApp() {
SetAppID(_T("AbduTextEditor"));
}


BaseApp::~BaseApp()
{
}
BaseApp theApp;

BOOL BaseApp::InitInstance() {
INITCOMMONCONTROLSEX InitCtrls;
InitCtrls.dwSize = sizeof(InitCtrls);
InitCtrls.dwICC = ICC_WIN95_CLASSES;
InitCommonControlsEx(&InitCtrls);

CWinApp::InitInstance();

SetRegistryKey(_T("AbduTextEditor"));
LoadStdProfileSettings(5);

m_pRecentFileList->ReadList();

auto pDocTemplate = new CSingleDocTemplate(
    IDR_MAINFRAME,
    RUNTIME_CLASS(BaseDocument),
    RUNTIME_CLASS(BaseFrame),
    RUNTIME_CLASS(BaseView));


if (!pDocTemplate)
    return FALSE;
AddDocTemplate(pDocTemplate);
/*
BeginningDlg newDlg;
BOOL newdoc;

for (auto i = 0; i <= 4; i++) {
    newDlg.rf.Add(m_pRecentFileList->operator[](i));
}

switch (newDlg.DoModal()) {
case 1:
    newdoc = FALSE;
    break;
case 3:
    newdoc = TRUE;
    break;
default:
    return FALSE;
}
auto xtra = (BaseDocument*)pDocTemplate- 
>OpenDocumentFile(newDlg.currPath);*/

CCommandLineInfo cmdInfo;
ParseCommandLine(cmdInfo);


AfxInitRichEdit2();

EnableShellOpen();
RegisterShellFileTypes(TRUE);

if (!ProcessShellCommand(cmdInfo))
    return FALSE;



m_pMainWnd->ShowWindow(SW_SHOW);
m_pMainWnd->UpdateWindow();

return TRUE;
}


int BaseApp::ExitInstance()
{
m_pRecentFileList->WriteList();

return CWinApp::ExitInstance();
}

在这里设置mydlg.currPath

void BeginningDlg::OnBnClickedOpenbutton(){
CString string = _T("Text Files (*.txt)|*.txt|All Files (*.*)|*.*||");

CFileDialog filedlg(TRUE,nullptr,nullptr, OFN_FILEMUSTEXIST| 
OFN_ENABLEINCLUDENOTIFY,string,this);

filedlg.m_ofn.lpstrInitialDir = path;
INT_PTR pInt = filedlg.DoModal();

if (pInt == IDOK) {
    currPath.Append(filedlg.GetPathName());
    EndDialog(1);
}
}

Answer 1

您需要为框架覆盖ON_CREATE消息。

无法理解SDI的工作原理

1 个答案: