HTTP.Download() in silent mode generates errors.

[tigran]

I can't figure out how to avoid errors in my log file which are generated by the HTTP.Download() function if it's run in a silent mode. When the function is run in a silent mode, i don't pass CallbackFunction parameter (nil value), but it still generates the following errors:

[01/31/2008 17:14:30] Error Script: On Pre Install, Line 2593 (1406)
[01/31/2008 17:14:30] Error Script: On Pre Install, Line 2593 (1402)
[01/31/2008 17:14:30] Error Script: On Pre Install, Line 2593 (1405)
[01/31/2008 17:14:30] Error Script: On Pre Install, Line 2593 (1404)

All 4 errors are dialog-related where download info can not be displayed in a dialog. Here is my function call in a silent mode:

HTTP.Download(szFileSource, szFileDest, MODE_BINARY, gHTTPTimeout, gHTTPPort, nil, nil, nil);

Why those errors are generated even though CallbackFunction is nil? The download itself works fine.

[Adam]

Do you have any StatusDialog.* actions near the download call? If so that could be the reason since the software passes these to the status dialog, if it is enabled and the callback is nil.

Adam Kapilik

[tigran]

Thanks for reply Adam. I do, in fact, have status dialog calls near download call. Below is an excerpt from my function:

---------------------------------------
if bSilent then

HTTP.Download(szFileSource, szFileDest, MODE_BINARY, gHTTPTimeout, gHTTPPort, nil, nil, nil);

else

StatusDlg.Show();
StatusDlg.ShowProgressMeter(true);
StatusDlg.SetAutoSize(true);
StatusDlg.ShowCancelButton(bAllowCancel, "Cancel");
StatusDlg.SetTitle(szDialogTitle);
StatusDlg.SetMeterRange(0, 65534);

HTTP.Download(szFileSource, szFileDest, MODE_BINARY, gHTTPTimeout, gHTTPPort, nil, nil, gDownloadCallback);

StatusDlg.Hide();

end
---------------------------------------

What has to be changed in the function to prevent the errors when downloading in silent mode?