Pedro Ferreira I’m trying to create a UI thread to do constant background work, but I’m having some design problems. The thread needs to fetch records from a database. do some processing on each record and, when there are no more records, sleep for 1 minute before check the database again. The process will be [...]

Pedro Ferreira said: I’m trying to create a UI thread to do constant background work, but I’m having some design problems. The thread needs to fetch records from a database. do some processing on each record and, when there are no more records, sleep for 1 minute before check the database again. The process will [...]

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 : [...]

WordPress has been updated to version 2.1.2, and many friends found that they can’t upload images via Windows Live Writer if with PHP 5.2. When publishing a post with a image in it, you will receive an error: “Image Upload Not Surpport by Weblog”. And in the wp-content/upload folder, the images exist there but the [...]

CWnd::IsIconic BOOL IsIconic( ) const; Return Value Nonzero if CWnd is minimized; otherwise 0. Remarks Specifies whether CWnd is minimized (iconic). Example // This code, normally emitted by the AppWizard for a dialog-based // project for the dialog’s WM_PAINT handler, runs only if the // window is iconic. The window erase the icon’s area, then [...]

Problem: In the C time, we used to use sscanf to read data from string as following: char strUserName[20], strPassword[20]; // if the content of m_recvBuff is “Microsoft Bill”. sscanf((const char *)m_recvBuff, “%s %s”, strUserName, strPassword); And when you first get CString in sight, you may write the similar code: CString strUserName, strPassword; // if the [...]

When you develop some admin utility, which will need the administrator privilege to configures some H/W connected ove LAN, etc. And you will found that the application is running propertyly in XP just by a double click of the mouse, where as in VISTA if you run it as Administrator then only running. So, how [...]