Delphi Basics : ShowMessage command

DelphiBasics

ShowMessage
Procedure

Display a string in a simple dialog with an OK button

Dialogs unit

procedure ShowMessage(const Text string);

Description

The ShowMessage procedure displays a string of Text in a simple dialog with an OK button.

It is used to inform the user of some information - no decision is needed by the user.

Insert carriage return and line feed characters (#13#10) into the string to generate multi line message display.

Related commands

InputBox		Display a dialog that asks for user text input, with default
InputQuery		Display a dialog that asks for user text input
MessageDlg		Displays a message, symbol, and selectable buttons
MessageDlgPos		Displays a message plus buttons at a given screen position
PromptForFileName		Shows a dialog allowing the user to select a file
ShowMessageFmt		Display formatted data in a simple dialog with an OK button
ShowMessagePos		Display a string in a simple dialog at a given screen position

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Example code : Show single and multiple line text displays

begin
  // Show a simple message
  ShowMessage('Hello World');

  // Show a blank message
  ShowMessage('');

  // Split this into two lines
  ShowMessage('Hello '+#13#10+'World');
end;

Show full unit code

  Hello World

  Hello
  World