Running out of Windows Handles.

Running out of Windows Handles.

Postby byron.hopp » Wed Nov 02, 2022 5:07 pm

I got an error and my app just terminates with the following error message in the Error.log file:

System Error: The current process has used all of its system allowance of handles for Window Manager objects.

This is because of a TSay object (actually several, around 12). which are called from a timer in the program.
The program is basically like an arrivals display at an airport. I was creating the Say object without referencing a variable.
I changed it to create the say object with oSay01 through oSay12 and set them to nil every time they are called.
Still got the same error. Is there a way to recapture the handles so this stops happening?

Thanks,
Thanks,
Byron Hopp
Matrix Computer Services
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Re: Running out of Windows Handles.

Postby hmpaquito » Wed Nov 02, 2022 5:45 pm

Hi,

Use:

Code: Select all  Expand view
GetGdiObjects()
GetUserObjects()
GetGdiObjectsPeak()
GetUserObjectsPeak()
 

Regards
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Re: Running out of Windows Handles.

Postby Antonio Linares » Wed Nov 02, 2022 9:34 pm

Dear Byron,

Don't create TSay objects. Use oWindow:Say( ... ) method for a window or dialog
regards, saludos

Antonio Linares
www.fivetechsoft.com
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Re: Running out of Windows Handles.

Postby byron.hopp » Wed Nov 02, 2022 9:44 pm

In Fivewin 21.11 I get link errors on each of the functions
Error: Unresolved external:
_HB_FUN_GetGdiObjects
_HB_FUN_GetUserObjects
_HB_FUN_GetGdiObjectsPeak
_HB_FUN_GetUserObjectsPeak

do I need a specific lib for these?
Thanks,
Byron Hopp
Matrix Computer Services
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Re: Running out of Windows Handles.

Postby nageswaragunupudi » Wed Nov 02, 2022 10:14 pm

Once you created the Say objects Say01 tp Say12, do not create them again, Keep setting new values to the same Says.
Regards

G. N. Rao.
Hyderabad, India
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Re: Running out of Windows Handles.

Postby Antonio Linares » Thu Nov 03, 2022 8:29 am

I fully agree with Mr. Rao
regards, saludos

Antonio Linares
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Re: Running out of Windows Handles.

Postby hmpaquito » Thu Nov 03, 2022 9:02 am

Code: Select all  Expand view
#pragma BEGINDUMP

#include <hbapi.h>
#include <Windows.h>
#include <WinUser.h>


HB_FUNC( GETGDIOBJECTS )
{
   hb_retnd( GetGuiResources( GetCurrentProcess(), 0 ) );
}

HB_FUNC( GETGDIOBJECTSPEAK )
{
   hb_retnd( GetGuiResources( GetCurrentProcess(), 2 ) );
}

HB_FUNC( GETUSEROBJECTS )
{
   hb_retnd( GetGuiResources( GetCurrentProcess(), 1 ) );
}

HB_FUNC( GETUSEROBJECTSPEAK )
{
   hb_retnd( GetGuiResources( GetCurrentProcess(), 4 ) );
}

#pragma ENDDUMP
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