RegDBGetKeyValueEx() returns invalid data

[Vincent Goossens]

Hi all,

I encounter a strange behaviour of RegDBGetKeyValueEx() when reading
REG_FULL_RESOURCE_DESCRIPTOR value: the functions reports no error code, but
the returned data buffer doesn't contain the expected registry value. The
returned value type is 9, which is undocumented.

I use InstallShield for Microsoft C++ 6 (Build-130).

Is this behaviour a limitation of the InstallShield version or a real
problem?

Thanks for your help.

----------------------------------------------------------------------------
--
Snippet code
----------------------------------------------------------------------------
--
STRING szKey, szNumName, szNumValue, svNumValue, szTitle, szMsg,
szHexString,szHexByte;
NUMBER nvType, nvSize, nRootKey, nByteIndex;

program

nRootKey = HKEY_LOCAL_MACHINE;
if (RegDBSetDefaultRoot(nRootKey) < 0) then
MessageBox("First call to RegDBSetDefaultRoot failed.", SEVERE);
endif;

szKey =
"\\HARDWARE\\DESCRIPTION\\System\\MultifunctionAdapter\\2\\SerialController\
\0";
szTitle = "Snippet Test";

/************************************/
/* Component information works well */
/************************************/
szNumName = "Component Information";
szHexString = "";
if (RegDBGetKeyValueEx(szKey, szNumName, nvType, svNumValue, nvSize) < 0)
then
MessageBox("RegDBGetKeyValueEx failed.", SEVERE);
else
for nByteIndex = 0 to (nvSize-1)
Sprintf(szHexByte,"%02lx ",svNumValue[nByteIndex] );
szHexString = szHexString + szHexByte;
endfor;
szMsg = "%s has value: %s\nThis data is %d bytes.\nnvType =
%d.\n\nREGDB_STRING = %d.\nREGDB_STRING_EXPAND = %d.\nREGDB_STRING_MULTI =
%d.\nREGDB_NUMBER = %d.\nREGDB_BINARY = %d.\n";
SprintfBox(INFORMATION, szTitle, szMsg, szNumName, szHexString,
nvSize,nvType, REGDB_STRING,REGDB_STRING_EXPAND, REGDB_STRING_MULTI,
REGDB_NUMBER, REGDB_BINARY);
endif;

/***************************************/
/* Configuration information works bad */
/***************************************/
szNumName = "Configuration Data";
szHexString = "";
if (RegDBGetKeyValueEx(szKey, szNumName, nvType, svNumValue, nvSize) < 0)
then
MessageBox("RegDBGetKeyValueEx failed.", SEVERE);
else
for nByteIndex = 0 to (nvSize-1)
Sprintf(szHexByte,"%02lx ",svNumValue[nByteIndex] );
szHexString = szHexString + szHexByte;
endfor;
szMsg = "%s has value: %s\nThis data is %d bytes.\nnvType =
%d.\n\nREGDB_STRING = %d.\nREGDB_STRING_EXPAND = %d.\nREGDB_STRING_MULTI =
%d.\nREGDB_NUMBER = %d.\nREGDB_BINARY = %d.\n";
SprintfBox(INFORMATION, szTitle, szMsg, szNumName, szHexString,
nvSize,nvType, REGDB_STRING,REGDB_STRING_EXPAND, REGDB_STRING_MULTI,
REGDB_NUMBER, REGDB_BINARY);
endif;
endprogram

=================================================================
Vincent Goossens - System Engineer
E-mail : Vincent....@Aspentech.com
Aspentech - Cimtech S.A.
Rue de l'industrie 20
B-1400 Nivelles Belgium
Phone : (+32) 067 88 36 66 Fax : (+32) 067 88 36 88

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[Vincent Goossens]

[Linh C. Nguyen]

Remove the first two ("\\") characters may help..

Vincent Goossens wrote in message <370da...@news.installshield.com>...