That happens to every access of the WizardForm
variable including the check, if it's assigned. Simply move your code from InitializeSetup
event to InitializeWizard
.
Why checking WizardForm for null in inno setup is not working?
-
28-06-2022 - |
Question
Why is this not working?
if WizardForm <> nil then
WizardForm.StatusLabel.Caption := 'blah'
else
Log('WizardForm not initialized yet!');
I get this exception:
Runtime Error (at 15:118):
Internal error: An attempt was made to access WizardForm before it has been created.
I know that WizardForm is not yet initialized, that's why I check for nil, the check is not working! What am I doing wrong here?
Solution
OTHER TIPS
Is there any other way to check for null?
How about this:
function IsWizardFormCreated(): Boolean;
begin
Result := True;
try
WizardForm;
except
Result := False;
end;
end;
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