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Delphi tips: Windows OS and API

Delphi programming tips and tricks, Windows and API related.

By Zarko Gajic, About.com

Note: to quickly locate a tip, hit CTRL+F on your browser (Edit - Find) and do a search for a tip by name ... or, you are here by "mistake", looking for Delphi tutorials and articles!

  • Activate/Deactivate the Screen Saver
  • Capture the output from a DOS (command/console) Window
  • Change the Windows Start button bitmap
  • Close another application
  • Controling sound volume from code
  • Copying group of files - standard animation dialog
  • Create a new program group in the Start menu
  • Detecting and preventing Windows shut down
  • Detecting Drive Types
  • Disable mouse and keyboard
  • Display standard Windows Properties dialog
  • Disable ALT+TAB, CTRL+ESC, CTRL+ALT+DEL
  • Get Windows Temp directory
  • Get Windows version
  • Get Filenames from Clipboard
  • Get system info (free memory, etc)
  • Get dimensions of usable space on monitor (work area)
  • Get text from the control at pos x,y on screen
  • How to determine the output of a console application
  • How to install an INF file using Delphi
  • How to play sounds on the PC Speaker
  • How to remove your application from TaskBar
  • How to track a user's idle time
  • IsTrueTypeFont
  • List Devices (LPT, COM ports, ...)
  • Restrict Mouse movement
  • Send char to another application
  • Save text from Clipboard to a file
  • Show window contents while dragging
  • Use TTF without installing
  • Window flashing

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