comp • gb.qt4 • message

Message (gb.qt4)

This class is used for displaying message boxes.

This class is static.
This class can be used as a
This is a synonymous for Info.
static function

Static properties

Static methods
ColoredButtons   Style  
Returns or sets the title of the next message box.
Displays a deletion message box, with up to three buttons.
Displays a error message box, with up to three buttons.
Displays a information message box, with one button.
Displays a question message box, with up to three buttons.
Displays a warning message box, with up to three buttons.

Message boxes come in the following flavours...

  Message(Message, Optional Button)
  Message.Info(Message, Optional Button)
  Message.Warning(Message, Optional Button1, Button2, Button3) As Integer
  Message.Question(Message, Optional Button1, Button2, Button3) As Integer
  Message.Error(Message, Optional Button1, Button2, Button3) As Integer
  Message.Delete(Message, Optional Button1, Button2, Button3) As Integer

All message functions show a different image to highlight the message type. the image above shows Message.Warning() and it's warning image.
Using Message() is the same as using Message.Info()

All Message functions apart from Message() and Message.Info() can have up to three buttons:

  • The first button is always the default button.

  • The last button is always the cancel button.

  • The first button will return a value of 1, the second 2, the third 3.

When invoked with only one argument, then there is only one "OK" button.

Message boxes are modal, i.e. the program is paused until one button is clicked.

When the message box is closed, the index of the clicked button is returned.

Important: When the message box window is closed using the titlebar close button or pressing escape, the index of the cancel button is returned.

The message text is interpreted as Richtext (a subset of) HTML. Among the things you need to keep in mind are:

  • You can add emphasis/markup to your text by the usual tags:

    Message("(p And Not p) is <b>false</b>")

  • Line breaks can be standard gb.Lf linefeed "\n" or HTML-like:

    Message("Line\\nbreak") ' *won't* work
    Message("Line<br>break") ' will
    Message("Line\nbreak") ' will
    Message("Line" & gb.Lf & "break") ' will

  • Characters with special meaning in HTML need to be quoted. The following line:

    Message("(2 < 3) is true")

    may result in the "< 3..." part being swallowed away as invalid HTML (seen with gb.gtk and gb.gtk3), but

    Message("(2 &lt; 3) is true")

    will work everywhere.

    If you want to show plain text and not use HTML markups you can use the Html$ function to convert your message to HTML viewable format.

    Message(Html$("(2 < 3) <this line shows as you see it> \nand <b>this line is not bold but displays the markup</b>"))


PRINT Message("Program v0.3<br>Version of 2006-03-28")
PRINT Message.Info("Program v0.3<br>Version of 2006-03-28", "Fine")
PRINT Message.Warning("Your changes will be lost", "Save", "Ignore", "Cancel")