function MessageBox(text : string; title : string; style : integer) : integer;
Displays a message box to the user.
The valid values for the style are:
mbOK
mbOKCANCEL
mbABORTRETRYIGNORE
mbYESNOCANCEL
mbRETRYCANCEL
mbICONHAND
mbICONQUESTION
mbICONEXCLAMATION
mbICONASTERISK
mbDEFBUTTON1
mbDEFBUTTON2
mbDEFBUTTON3
mbDEFBUTTON4
The MessageBox function return value corresponds to the button which the user pressed:
mrOK
mrCANCEL
mrABORT
mrRETRY
mrIGNORE
mrYES
mrNO
mrCLOSE
mrHELP
eg.
if MessageBox("Do you want to cancel the build", "Cancel Build", mbOKCANCEL) = mrOK then
// build needs to stop
end if