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. I needed the ability to create and send email from within my application (it’s an online trivia game called MindProbe). After messing around with the various OCX based solutions available I settled on a cut and paste of the code embedded deep within CDocument to access MAPI. I changed things a lot and abstracted […]

Environment: The code for this article is specific to Visual C++ 6 While we have many code that make dialogs different from the CFileDialog, I am trying to make a dialog that is as close to the CFileDialog as possible. Why reinvent the wheel? There are two reasons. First reason: Microsoft does not provide a […]

FindNextItem traverses a tree searching for an item matching all the item attributes set in a TV_ITEM structure. In the TV_ITEM structure, the mask member specifies which attributes make up the search criteria. If a match is found, the function returns the handle otherwise NULL. This function uses the function GetNextItem, seen previously. The function […]

Environment: Demo was created with Visual C++ 6.0 . I needed to be able to edit some fields from a database, and wanted to have a label, the field name, followed by an edit box that the user could enter the field data in. The only problem was that there could be anywhere from 1 […]

When debugging your code, it is likely that at some point you have accidently stepped in ‘too far’. Whether it was into the constructor for CString or even just a piece of code that you’ve already debugged and *know* works, it’s a pain to have to keep switching back and forth between doing ‘step in’ […]

In my current project I found it nessassary to disable all the top level windows my application created before displaying any modal dialog boxes. This is because although all of these windows are “owned” by my main frame window, they are siblings and running a modal dialog does not prevent user input from reaching those […]

Microsoft developed a full-featured scheduler for IE 4, IE 5, Win 98, and NT 5. From looking at all the task options available (three property pages, plus an "advanced" dialog) you could imagine that programming the scheduler is quite a chore. And you’d be right. I developed the CScheduledTask class to help you create very […]

Legend: func = function; prog = program; ptr = pointer; SS = Screen Saver; var = variable; Win = Windows; This code enables / disables the current active screen saver through a call to the SytemParametersInfo function. This code also demonstrates pointer usage in CheckSSStatus() for programmers who are learning pointers or who need a […]

Like Visual Studio this demo-application alarms the user if any changes made in a file, wich is open in a document in this time. Everytime, when a document was opened, or saved as.. the document-class starts a thread. In this thread, changes will detected in the current directory with a FinfFirstChangeNotification()-Event. If this event is […]

This code demonstrates using rich text in tooltips, as seen in Query Analyser utility of MS SQL Server 7. It is more like a proof-of-concept then a finished code, and is heavily based on two classes from CodeGuru : TFXDataTip by S. Wilson and CAutoRichEditCtrl by Jeremy Iverson First class was modifyed to hold a […]

Navigation [ Illustration | Examples | Function reference | Tips & tricks | To do | Download ] A memory device context (CMemDC) I recently downloaded the CMemDC class published by Keith Rule (see his article here at codeguru’s). It faces the following problem: If you perform rather huge operations on a device context (in […]

void CAppDlg::OnWindowPosChanging(WINDOWPOS FAR* lpwndpos) { if (lpwndpos->cx = -1) if (lpwndpos->cy = -1) // is init time { lpwndpos->x = 0; // change here if you want to move left or right the window. lpwndpos->y = 0; // change here if you want to move top or bottom the window. } CDialog::OnWindowPosChanging(lpwndpos); } Explanation After […]