Tip Bank

DevX

Intercepting Windows Messages

Question: I want to add a new item to the control box menu(or system menu). I add a new item using API’s likeAppendMenu and InsertMenu and both work fine, but

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Advantages/Disadvantages of Using Sub Main

Question: Can you please tell me when do you use Sub Main and the advantages of using it? Answer: In certain programs, initialization code has to run before any windows

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Using the CancelError Property

Question: You said there’s an example in the VB help file on use of theCancelError = true property. Where is it? In my app, I can get VB to generatethe

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Problems With Single Quotes

Question: Single quotes are messing up my queries. What can I do to fix the following problem?Dim Criteria as StringCriteria=”Name LIKE ‘” & SearchName & “‘” ‘SearchName=”Sam O’Brien”‘At this Point

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Exiting Windows

Question: How can I make my program totally exit Windows? When the user hits “Quit Windows”, I want Windows to exit. Answer: Use the ExitWindows API function. The declare statement

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Network Logon/Logoff Functions

Question: I am trying to create a VB program to log a useronto a workgroup (from a windows for workgroupsclient) and then map local drives and devices toa network resource.

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Setting Windows Wallpaper

Question: I am trying to use the API call SystemParametersInfo to change the Windows wallpaper. It works great in a Borland C program I wrote, but doesn’t work in VB.

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Replacing OpenTable

Question: We have a Large VB application (code wise) and we are movingthe data from MS access to Sybase using the ODBC driver.Now, after we presented the project’s time tale

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Changing File Extension

Question: not having programmed in any of the BASIC languages, I am wondering if Visual Basic’s string variable is in anyway similar to what a string variable is in C