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... in my windows register? Try to put: RegOpenKey( HKEY_LOCAL_MACHINE, "Software\Microsoft\Windows\CurrentVersion\Run", @hKey )? RegEnumValue( hKey, n, @cName, @uValue ) in regenum.prg to see if return 0 or 234 compiled with MSVC .

...            "Software\Microsoft\Windows\CurrentVersion\Run", @hKey )      while RegEnumValue( hKey, n++, @cName, @uValue ) == ERROR_SUCCESS      MsgInfo( cName )      MsgInfo( uValue ...

they are firewall informations like this long 150 to 170 characters obtained with compiling the example with bcc72: v2.10|Action=Allow|Active=TRUE|Dir=In|Protocol=6|Profile=Domain|App=G:\winclip\applicazioni\contab\contab.exe|Name=contab|Desc=contab|Defer=User| this is the key: RegOpenKey( HKEY_...

The value that you are trying to retrieve is larger than 1024 bytes ?

... lpData, lpcbData := 2048   RegOpenKey( HKEY_LOCAL_MACHINE, "Software\Microsoft\Windows\CurrentVersion\Run", @hKey )   while RegEnumValue( hKey, n++, @cName, @uValue,,, @lpData, @lpcbData ) == ERROR_SUCCESS      MsgInfo( cName )      MsgInfo( uValue )  ...

https://docs.microsoft.com/en-us/windows/win32/api/winreg/nf-winreg-regenumvaluea Return Value If the function succeeds, the return value is ERROR_SUCCESS. If the function fails, the return value is a system error code. If there are no more values available, the function returns ERROR_N...

Hi at all.
i have inserted the sample regenum.prg in a my program compiled with borland 7.2 and all is ok (RegEnumValue() return 0)
if i compile the same program with visual c++ 2015 RegEnumValue() return 234 instead of 0 and doesn't work.
any idea?

thanks, marzio

funcionando .
Al final la funcion a usar era REGENUMValue .
Gracias.

pd. Estaría bien añadir un metodo a la clase Treg32().

algo como :
METHOD GetNumValue( nIndex, cRefValue ) INLINE RegNumValue( ::nHandle, nindex-1 , cRefValue )

Hello Antonio,
thank you. I have admin rights.
RegEnumValue reports all the values fine but
RegQueryValue( hKey, "ScrollHeight" , @uValue )
returns "Ff".
Best regards,
Otto

... But RegSetValue( hKey, "ScrollHeightn" ,-500 ) RegQueryValue( hKey, "ScrollHeight" , @uValue ) in my case does not work. RegEnumValue is working fine. Do you know a solution. Best regards, Otto #define  HKEY_CURRENT_USER       2147483649#define  ERROR_SUCCESS ...

... n := 0 LOCAL aKeys := {} #define HKEY_LOCAL_MACHINE 2147483650 RegOpenKey( HKEY_LOCAL_MACHINE, "SOFTWARE\Classes\.pdf", @hKey ) WHILE RegEnumValue( hKey, n++, @cName, @uValue ) = 0 aAdd( aKeys, { cName, uValue } ) ENDDO RegCloseKey( hKey ) IF ( n := aScan( aKeys, { |x| x[ 1 ] = "Content ...

* Fix: functions ReGetCharFormat() and RegGetSelection() incorrectly used hb_storvnl() instead of hb_stornl() * Fix: functions RegEnumKey() and RegEnumValue() incorrectly used hb_storvc() and hb_storvnl() instead of hb_storc() and hb_stornl() * Fix: functions RegQueryValueEx() and RegCreateKey() ...

Antonio, I had a look in the Internet and found this : RegEnumValue The RegEnumValue function enumerates the values for the specified open registry key. The function copies one indexed value name and data block for the key each time it is called. LONG ...

Davide,

If you review RegEnumValue() documentation:
http://msdn.microsoft.com/en-us/library/ms724865(VS.85).aspx

you will see that it is not supported in Win98:
"Requires Windows Vista, Windows XP, or Windows 2000 Professional."