Option 1

Use OnCustomFileName event handler:

uses
  EEvents;
 
procedure ControlNames(const ACustom: Pointer; AExceptionInfo: TEurekaExceptionInfo; const AFileType: TEurekaLogFileType; var AFileName: String; var ACallNextHandler: Boolean);
var
  BugReportFileName: String;

begin
  // ftSavedBugReport indicate bug report
  // you can also use other values
  if AFileType = ftSavedBugReport then
  begin
    BugReportFileName := AFileName;
    // you can also change file name (AFileName) here
  end;
end;
 
initialization
  RegisterEventCustomFileName(nil, ControlNames);
end.

Option 2

Assuming you have EurekaLog's information object (e.g. event handler):

{ ... } AExceptionInfo: TEurekaExceptionInfo; { ... }
var
  BugReportFileName: String;
begin
  BugReportFileName := AExceptionInfo.ExpandEnvVars(AExceptionInfo.Options.OutputLogFile(''));
end;

This will give you a default file name as set in your options, ignoring any run-time customizations set by OnCustomFileName event handlers, dialogs, etc.

Option 3

Only as last resort measure - use global settings:

uses
  EModules; // for CurrentEurekaLogOptions
 
BugReportFileName := CurrentEurekaLogOptions.ExpandEnvVars(CurrentEurekaLogOptions.OutputLogFile(''));

Note: be aware, that global code can not expand some variables (such as %BugID% - because those does not exist outside of exception processing code).

See also: