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The class CCJPagerCtrl is fairly simple to use. It can be used in either a dialog or view. For demo purposes, I implemented it in a dialog using a CToolBar, but you can use any control or view class as the child window. Open your dialog in your resource editor and add a custom control. […]

A system image list contains each file, folder, shortcut, etc. which is very handy for creating a custom explore type application. I saw Matt Esterly’s code for using an image list, and noted the comment at the bottom about detaching it from the CImageList; if this isn’t done the CImageList destructor frees up the system […]

There are two articles dealing with this subject on this site, but i guess sometimes it’s needed to free one single control from flickering, and it’s not needed to use a complete new window-class. I will show you a really small solution of the flickering-problem, which uses the CMemDC-class from the article by Keith Rule. […]

Many postings to CodeGuru and similar discussion groups are questions about modeless dialogs and how to keep them from blocking the parent thread. I use a user interface thread to start a conventional modal dialog that behaves modeless-ly and it’s so minimalist and easy I thought others may be interested… Instructions In your header file […]

I prefer to browse my code manually rather than using MSVC’s Wizard Bar. These simple macros move the cursor up and down one function at a time in a cpp file. This is accomplished by searching for a newline character followed by an open brace (‘{‘). Simple as they may be, they help me get […]

Th following macro opens a header file included on the current line (just like right-click on the header file name and choosing Open filename.h). Sub OpenHeaderFile() DESCRIPTION: Opens a header file which is #included on the current line ActiveDocument.Selection.SelectLine LineText = ActiveDocument.Selection StartPos = Instr(LineText,””””) ‘find the #include “” style If (StartPos = 0) Then […]

It is common use to associate user data with a tree item. If it is a pointer to some class the function that gracefully releases all memory is needed. The one is given below. It takes as an argument a handle of a tree item and deletes all CSomeXObjets (user objects) in all subitems. If […]

Here’s the description of the classes that are used: CTLFrame – derived from CWnd, this class is the frame class for the treelist control. It is used  to include the header control, the tree itself, and the horizontal scroll bar. It looks like this: CNewHeaderCtrl – derived from CHeaderCtrl. Used as the header in the […]

Zafir’s article on adjusting row height in a CListCtrl derived class needs to be adjusted when dealing with dynamic font changes. His sample causes some problems where the row height is not correctly computed to compensate for different video display modes. The code snip below responds correctly to font changes by selecting the font object […]

This code shows you how to draw a transparent bitmap using memory rather than directly using the screen. This is important as intensive bitmap operations are slow due to the number of bits that are affected, and using the screen makes things even worse; some flicker results. The visual flickering can be eliminated by using […]

Download Source Code and Example The Problem Many COM interfaces provide the ability to step through, or enumerate, a collection of some kind. The usual way for a COM interface to expose this kind of functionality is via an interface which conforms to the IEnumXXXX standard. IEnum interfaces provide the following methods: Next(), Skip(), Reset() […]

This is a modification of Mr Lachand-Robert’s BitmapToRegion() function. The new routine, SetBitmapPixels(), lets you print a CBitmap transparently, even on an HP printer, where you can’t use the normal raster operation codes. It is too slow for display, but can be used for printing in place of the normal “blitting” of the bits to […]