Advanced MFC Programming

Chapter 14. Views
CRichEditDoc: CRichEditDoc::m_bRTF. If we want to open “rtf” type files, we need to set this variable
to TRUE. If we want to edit plain ASCII text, we need to set this variable to FALSE.
1) To get or set the format of a paragraph, we can stuff structure PARAFORMAT and call function
CRichEditView::GetParaFormat(…) or CRichEditView::SetParaFormat(…); to get or set the format
of characters, we can stuff structure CHARFORMAT and call function
CRichEditView::SetCharFormat(…) or CRichEditView::SetCharFormat(…).
1) To customize “File Open” dialog box, we need to override function CWinApp::OnFileOpen(…). To
customize “Save As” dialog box, we need to override undocumented function CDocument::DoSave().
1) The following undocumented member functions can be used to implement commands for formatting
characters or paragraph in a rich edit view:
CRichEditView::OnParaCenter();
CRichEditView::OnParaRight();
CRichEditView::OnParaLeft();
CRichEditView::OnCharBold();
CRichEditView::OnCharUnderline();
CRichEditView::OnCharItalic();
6) The styles of tree view and list view can be set by calling function ::SetWindowLong(…). Any style
that can be used in function CTreeCtrl::Create(…) or CListCtrl::Create(…) can be changed
dynamically by using this function.
1) We can call function _chdrive(…) to test if a drive (from drive A to drive Z) exits in the system. If the
function returns -1, the drive does not exit. If it returns 0, the drive is available. We can also call this
function to change the current working drive.
1) Class CFileFind can be used to enumerate all the files and directories under certain directory. To
enumerate files and directories, we can call function CFileFind::FileFind() first then call function
CFileFind::FindNextFile() repeatedly until it returns FALSE.
1) Function CFileFind::IsDirectory() can be used to check if an enumerated object is a directory.
Function CFileFind::IsDot() can be used to check if a directory is “.” or “..”.
1) Function ::SHGetFileInfo(…) can be used to obtain the embedded or shell icons for a file.
1) Notification NM_CLICK can be used to trap mouse clicking events on the tree control. Notification
TVN_ITEMEXPANDING indicates that a node is about to expand.
1) When the user clicks mouse on the tree control, we can call function CTreeCtrl::HitTest(…) to find
out the handle of the item that was clicked.
1) We can call function CListCtrl::SortItems(…) to implement item sorting in the list control. In order
to do this, we must assign each item contained in the list control a parameter, which will be used as the
identification of the item. Then we need to prepare a callback function, within which rules of
comparison are implemented.
1) To search for a specific item by its parameter, we can stuff structure LV_FINDINFO and call function
CListCtrl::FIndItem(…).
1) To respond to the mouse clicking events on the columns of the list control, we need to trap notification
LVN_COLUMNCLICK.
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