CodeGuru Staff

Environment: VisualStudio 6.0 The EPM text editor under OS/2 provided a macro facility not unlike that in DevStudio, which meant that before it had been around for long, a number of really useful macros started popping up on internet sites that catered to OS/2 users. One particular set of macros that I have really been […]

Environment:VC6 SP3, NT4 SP4, Win98 Here is my way to change my App’s language. It is tested under both Win98 and NT( Win95 will be good also). It looks good, but It needs more steps. First, after you create you app, you should create a dll that contains all the resource of the application. the […]

CCmdLine is a simple way to parse a command line into switches and arguments. Ex : MyApp.exe -sw1 arg1 arg2 -sw2 arg3 -sw3 -sw4 When using CCmdLine, “-sw1”, “-sw2”, “-sw3” and “-sw4” are switches and “arg1”, “arg2” and “arg3” are arguments. Parsing command lines with the standard C string functions (strlen, strcpy, etc.) or even […]

There are many applications where I don’t really want to use the usual windows page print. Instead I want output to go directly to the printer using standard print i/o. It’s actually a topic that is hard to find in any of the books on Windows, at least I’ve never found anything on it. But […]

For the sake of argument, it should be noted that I am not a Database expert. I have experience using ADOCE because of a project I was working on in the recent past. It was semi-difficult to use at first, but once I got the hang of it, it was actually very simple. This article […]

Environment: VC6 SP3, NT4 SP5 We’re working on very large software project using MTS. We have about 300 components written in C++ and Visual Basic registered in MTS package. During profiling session I noticed that for some scenarios about 10-15% were spent in CLSIDFromProgID function (ole32.dll). The solution is simple – we need to cache […]

AutoFill OCX Description Recently while programming a dialog with a lot of input fields I discovered how big a pain it was to test the dialog because of the number of controls to fill in. I wrote this small OCX to fill the fields in for me. This allowed me to focus on the debugging […]

Environment: VC6 SP3, VB6 SP3, NT4 SP4, Windows 2000 Beta 3 The purpose of this tutorial is to give you an idea on how to create a COM Server using ATL, and then being able to call the server from both a Visual C++ program, and a Visual Basic program. I am not gonna go […]

Developing ActiveX Controls I always was unhappy to spend a fair amount of time to monotonous GUI work designing and implementing a property pages. After all I wrote this class that works in most cases as universal property page for any ATL-based ActiveX Control. The prototype for this class is property browser window known for […]

Most of COM objects implement more than one interface. These interfaces are usually dual interfaces, which means they implement IDispatch as well. If you use such an object from a programming environment that can access IUnknown, all the interfaces are available through the QueryInterface method.  Using the object from scripting (automation) environments (like VBScript) leave […]

Here is a way to put a bitmap file into an RTF control. It will insert the file, pWorkSpace->GetWkspTempDirectory() + _T(“\”) + plotName, into the CRichEditCtrl m_reportCtrl: This goes in the “.h” file: LPSTORAGE m_lpStorage; // provides storage for m_lpObject LPLOCKBYTES m_lpLockBytes; // part of implementation of m_lpStorage LPOLEOBJECT m_lpObject; // in case you want […]

Environment: VC++ 6, Windows 95/98/NT From time to time, I pick-up ideas from codeguru.com so I thought that I should contribute as well. The program I’m submitting today is aimed at solving a problem that sounds simple but appears to be next to impossible: running multiple Web servers on a single Windows 95/98 machine. If […]