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Tip Bank

Checking for MDI Children

Question: How do I know is there any MDIChild form opened? Because I want to disable the MDIForm’s toolbar editing items (cut, copy, paste) if all child forms are closed.

Using Dropdown Control in TrueGrid Pro

Question: I am using a Truegrid and implementing their Value list, combo box. I fill the list in code and would like to be able to have the “pick-list” drop

Supported Graphics Formats

Question: What graphic file formats does VB support? Does it support the GIF format? Answer: Visual Basic supports the Windows Bitmap (.BMP), the Windows Icon (.ICO), and the Windows Metafile

Loading Bitmaps from Database Values

Question: I am in the process of building an application where I needa grid of small graphics (icons or BMPs) in an array situation.When the user clicks on one graphic

Reliable File Writing

Question: I have a DOS-based application (QB4.5) which has been running for some years and I have now updated it to Visual Basic. The application handles several async serial ports

Making the List Drop Automatically

Question: How can I make the combo box drop its list easily? Answer: On form load, do combo.additem , until allitems are placed into the combo list.To cause the combo