Sometime you need some CEdit Validation, for example, restricting the data number only. The simple implemetion is to handle the EN_UPDATE notification message. The EN_UPDATE message is useful to handle as it caters for both normal entry and clipboard paste. You can do that in the Dialog or subclass the CEdit class. Here is an [...]

In MFC program, you’d better try to avoid using std::string. There is no compelling reason to use it in MFC, and it leads to confusion. There are some standard method to translate among Cstring ,string and char[]. // Suppose CString str; std::string s; char buf[SIZE]; // from CString to std::string s = str; // from [...]

How to hook the file related event? It depends on what you need to do when such an event takes places. If what you just want to be notified, FindFirstChangeNotification and ReadDirectoryChanges are enough. If you need to intercept adn affect the operation somehow, I have heard it can be done with a kenerl-level driver(Filesystem [...]

When migrating an ATL project from vc6 to vc8, you will get a problem about CComModule. Problem: In vc6, there is such a declaration in stdafx.h as: extern CComModule _Module; and in the main module: CComModule _Module; But when you complie it in vc8, the following errors apears: c:\temp\myatl\stdafx.h(24) : error C2146: syntax error : [...]