Docs

Appearance

Flow documentation · legacy product

MessageError ​

Declaration ​

Procedure MessageError( AMessage : string; HelpID : LongInt; E : Exception)

Example ​

pascal
procedure OnMapEvent(var Value:Variant);
begin
  Value := MessageError('This is a message',0, nil);
end;

Description ​

Displays a error message to the user. HelpId should always be set to 0, E should always be set to nil.

How this message is displayed depends on what application is executing the script. If executed under Flow this message will show to screen - the user needs to click OK to the message to continue processing. If executed under FlowService the message will be written to the Windows Event Viewer.