Latium Software's Delphi Tips

Delphi tips

Howto...

How to read and write a file to and from a string?
How to execute an external application?
How to show the Control Panel window or run a Control Panel applet?
How to wait till an application ends?
How to access the Windows Registry?
How to determine the associated application?
How to look for files?
How to determine the short name (DOS name) of a file?
How to access hidden properties?
How to add new methods and properties without registering new components?
How to know which column was clicked in a TListView?
How to sort a TListView?
How to determine the actual length of a string?
How to look for files recursively in the hard disk?
How to get the icon of an application or document?
How to set the invisible color of a transparent image?
How to imitate deltree.exe?
How to get Windows important directories?
How to compare a string with a pattern?
How to determine if a file name matches a specification?
How to set the desktop wallpaper?
How to use custom cursors?
How to automatically load a form on demand?
How to make MessageDlg play the corresponding sound?
How to play a custom sound?
How to set the default printer?
How to prevent the user from closing a form?
How to create a unique temporary file?
How to know if there is a disk/diskette/CD in a removable-disk drive?
How to get the dates of the first and last day of the month of a given date?
How to change the screen resolution?
How to make an application run automatically when Windows starts?
How to round numbers in different ways?
How to close another application?
How to start an application as an icon in the system tray?
How to open a Microsoft Access .MDB database?
How to get the list of all tables and queries in a database using the BDE?
How to get the user name of a Windows session?
How to get the computer's network name?
How to get the drive letter of the CD-ROM drive unit?
How to invoke the default mailer program to send an email?
How to conquer the glitch of indistinguishable gray blobs in disabled menu items?
How to put color to a button?
How to remove the frame (border) of a progress bar?
How to overcome the BorderWitdth property error?
How to output angled (rotated) text?
How to capture application messages?
How to specify the size of an array at runtime?
How to know if a form has moved?
How to get the BIOS serial number?
How to convert from TFileTime to TDateTime?
How to read DOS files with special characters?
How to prevent the user from selecting text in a memo control without setting Enabled to False??
How to deactivate the popup menu that appears when we right-click components that allow editing?

NOTE: Except where explicitly stated otherwise, these tips and articles are meant for Delphi 5, although many might work without modifications in previous versions of 32-bit Delphi.