
Backward compatibility
Question: Is it possible to convert a VB 6 file to a VB 4 or 5 file? Answer: Sorry, I can’t tell you exactly how to do it. But I

Question: Is it possible to convert a VB 6 file to a VB 4 or 5 file? Answer: Sorry, I can’t tell you exactly how to do it. But I

Question: I need to store thumbnail graphics in an Access database (as an OLE object?) and be able to display the columns including the graphic in a table or grid.

Question: I’m trying to set and save user preferences for an application to a local file. The java.util.Properties class looks like what I want, but I don’t understand how to

Question: How well can Visual FoxPro be a front end for object-oriented databases? Are there any in particular that work well with VFP? Answer: I am not familiar with any

Question: I am using VC++ 5.0 to develop applications based on Windows 95. I want to get the HWND of the active window, which is receiving the keyboard or mouse

Question: Could you give me an exact definition of smart pointers, and how does a reference counting smart pointer work? Answer: I don’t believe there is an exact definition, since

Question: Can you have both versions 5 and 6 of FoxPro installed and make applications that work with either versions 5 or 6? I want to make an app for

Question: I’ve written a program using MFC that uses toolbars. I have an event that I want to change the state of some of the toolbar buttons (disable them, to

Question: I am attempting to use OLE between PB5 and Word97. I want to add two fields into the header of the document. I want to add the Page number

Question: How can I bring an open application to the foreground (that is, move the PowerBuilder app back a layer). Answer: To bring another application to the front, you will

Question: I have two Visual FoxPro applications (App1 and App2) running in the same computer. App2 runs every 30 minutes. When App2 runs, App1 is slow because App2 consumes lots

Question: How can I access the usercontrol’s left and top properties from within the user control? Answer: Certain standard properties such as top and left are provided to a control

Question: What is wrong with this picture? Private Sub cmdIXEDMtest_Click() Dim con As New ADODB.Connection Dim rs As New ADODB.Recordset Dim s As String Dim constr As String On Error

Question: I have several SQL Server scripts that either CREATE or RUN stored procedures in a SQL Server database. I need to run these files (which I have in .txt

Question: I have a table where after an import from an ASCII, I see some funny characters in some fields. After using asc(), I show that the characters where the

Question: I am using Visual FoxPro 5. Is it possible when exporting a table to a text file to have the field names exported on the first line of the

Question: The setup wizard gives the capability to the end user to change the directory into which the setup will copy the files. How can I prevent this? If the

Question: How can I determine the total time it takes for a set of threads to execute? Answer: When you time a set of threads, you generally want to know

Question: How can I pass or send a mousedown to a choice menu when a button is pressed? Answer: Sending an event to an AWT component is as simple as

Question: Does SQL have a function to get only the time–rather than getDate()–which gets the date and time, or a function to get the Unix time() time. (the one that

Question: I am trying to interface VBA with a C++ DLL. I am very new to C++ programming. I understand the declarations from the VBA side, but I am having

Question: I’d like to get a bitmap file (c:mypic.bmp) placed on a MS Word97 file (msfile1.doc) using Powerbuilder (6.5). I am interested in printing that file afterwards. Answer: The following

Question: I have written a videoshop program in C++. I need to be able to delete a video structure off the disk. At the moment, the user enters a video

Question: The new java.net.Authenticator class in JDK 1.2 seems to be the answer to generalized user-authentication. Why dogetPasswordAuthentication andrequestPasswordAuthentication both return PasswordAuthentication, butrequestPasswordAuthentication requires a security check? Answer: The getPasswordAuthentication

Question: Why do I have problems running some programs with Java 2? Answer: Many Java class libraries and programs written before Java 2 use a technique called obfuscation to make

Question: Is there any way to catch exceptions repeatedly, instead of just once? For example, when creating a Date object with a String, an IllegalArgumentException can begenerated and caught. In

Question: Is it possible to connect and disconnect a Microsoft phone dialer that calls my Internetservice provider from a VB program? Answer: It sure is, and VB makes it very

Question: I would like to know how I can add, remove, and see if an item is in the TreeView control. For example: Prism Pros 4/30/99 7:39AM 4/30/99 8:00AMMcFarley 4/30/99

Question: What happens in the Form Load? If I try to retrieve information from a database (using a DataControl and TextBoxes connected to the database), I can’t get the program

Question: In a program, I’m calling a function in a dll. The time before that function is finished can vary from a few seconds to an hour, depending on the