My first question would be "does the OnAlarm event fire when the PC is locked?", as this is what state it's in when you have a screensaver running with password enabled.
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Question
App and screen saver with password protection
Hello Guys,
I`ve got an application with automatic start of saving data from com ports ( 5 of them), for automatic start I use RXClock OnAlarm Event. Now if i secure my pc with screen saver and password the automatic start doesn`t work. If i use only screen saver without password everything works ok.
What can cause such effect and how to solve it.
It`s win xp and MSSQL2005 Express
My RxClock OnAlarm event looks like this:
if ADOConnection1.Connected=F
begin
ADOConnection1.Connected:=
end;
if com1=True then
Form10.ComPort1.Connected:
if com2=True then
Form10.ComPort2.Connected:
if com3=True then
Form10.ComPort3.Connected:
if com4=True then
Form10.ComPort4.Connected:
if com5=True then
Form10.ComPort5.Connected:
if com5=True then
Form10.ComPort5.Connected:
if com6=True then
Form10.ComPort6.Connected:
StatusBar1.SimpleText:='Tr
end;
BR
Vaalar
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Answers
What do you mean "if it isn't buggy"? It either fires the event, or it doesn't. If the event fires, then the problem is not the RXClock - it's something else in his program. If it doesn't fire, then the problem is the RXClock.
Either way, it will rule out the most obvious potential problems, but he needs to code a test app and know for sure.
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by: ChristianWimmerPosted on 2008-12-16 at 14:55:48ID: 23189225
I don't know the connection between the problem you described and my hint but I just want to tell you that if a Windows screensaver is started using a password the desktop is switched from 'default' to 'screen-saver'. This prevents access to the windows of the user. It is like the winlogon (=the logon desktop) secured.
If a screen saver is started without password the 'default' desktop is used instead. The screensaver is just over all other windows on the screen.
Find out more about desktops here:
http://msdn.microsoft.com/
Maybe it depends how RXClock implements its timer. I can remember that some Timer have problems when the desktop is switched.