CodeGuru Staff

A .CHW file is just a .CHM file with a different extension. By default, a .CHW file isn’t compressed since compression can require a fair amount of memory, and not all machines will be able to handle the memory requirements. But if you ship a CHW file with your product, or you have large CHW files on […]

An issue is to implement the show/hide taskbar application button from within the window-application in Microsoft Visual C++ environment using MFC. Hiding the taskbar can be accomplished by ITaskbarList COM interface which requires necessary COM-handling overhead. Unfortunately, this interface is provided by Shell32.dll version 4.71 (and higher) only. Normally, there is not even a standard […]

. A smart application program should be recover its original frame window status when it is run again. There already exists article on Saving and restoring window positions that has the same effect with my code, except that the article does not consider toolbar status. Calling the toolbar status restore function (LoadBarState) is impossible in […]

Problem Many apps fancy an export function. So wouldn4t it be nice to be able to easily save that result you4ve got there as an Excel sheet? ODBC does make this possible, but there4s one little drawback: Using ODBC the usual way there has to be a registered datasource (DSN) in the ODBC manager. This […]

Problem After contribution that article about writing into an Excel file I got tons of requests about how to read from one. Well, you asked for it… 1) In fact the main problem is that you can’t read an Excel file without previously having some formatting done. Microsoft refers to this in one of their […]

I can suggest an extension to the Drag and Drop of your TreeView control. The standard drag and drop as in your control will add the drag branch as a child of the drop item. Quite often during drag and drop operations parent items should stay parent items, child items should stay child items, grandchildren […]

Did you ever have to find out parent of a process? Well, if so, you’ll already have found out that there is no documented relation between processes in Win32 (like there is on UN*X). But, fortunately, the emphasis is on ‘documented’, as the NT Native API offers LOTS of undocumented APIs that can be useful […]

This class overides the default caption painting in MFC and replaces it with a graded caption bar. The source code for the class along with a sample application can be found at ftp://ftp.rocscience.com/caption3.zip . The code originates from the MSJ article in January 1997 and then again in June 1997. I’ve made a few modifications, […]

The point of this program is to allow you to create non-rectangular dialog boxes. The program itself is an example of what can happen if this is taken a bit too far. Creating your transparency region 1. Create a mask image for the dialog box. One color will be the transparent part of the dialog. […]

Environment VC++ V5.0; Win98 (NT should work too) Yet another tabbed view thing? Yes and no. This one is different. No changes to the DOC, VIEW or CHILDFRAME classes are neccessary. The TabBar is a child window of CMainFrame and can maintain the MDI child frames containing the various views. We subclasses the MDI-CLIENT window […]

This bar is similar to the Outlook, Outlook express, or Front Page 98 editor. It is useful to display application specific information with text and bitmaps. You can change dynamically: Text, Text Color, Background Color, Text Font, Bitmap. CInfoBar class have following methods: SetTextColor(COLORREF crNew); SetBackgroundColor(COLORREF cr); SetTextFont(LPCTSTR lpFontName); SetBitmap(UINT nResID); SetText(LPCTSTR lpszNew); Declare in […]