ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

msi: Features may be published but absent.

This commit is contained in:
Mike McCormack 2006-07-06 19:01:50 +09:00 committed by Alexandre Julliard
parent ee3e058655
commit abfe248633
1 changed files with 33 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
dlls/msi/msi.c
View File

@ -1123,15 +1123,25 @@ end:
/******************************************************************
* MsiQueryFeatureStateW [MSI.@]
*
* This does not verify that the Feature is functional. So i am only going to
* check the existence of the key in the registry. This should tell me if it is
* installed.
* Checks the state of a feature
*
* PARAMS
* szProduct [I] Product's GUID string
* szFeature [I] Feature's GUID string
*
* RETURNS
* INSTALLSTATE_LOCAL Feature is installed and useable
* INSTALLSTATE_ABSENT Feature is absent
* INSTALLSTATE_ADVERTISED Feature should be installed on demand
* INSTALLSTATE_UNKNOWN An error occured
* INSTALLSTATE_INVALIDARG One of the GUIDs was invalid
*
*/
INSTALLSTATE WINAPI MsiQueryFeatureStateW(LPCWSTR szProduct, LPCWSTR szFeature)
{
WCHAR squishProduct[GUID_SIZE];
WCHAR squishProduct[GUID_SIZE], buffer[MAX_FEATURE_CHARS+2];
UINT rc;
DWORD sz = 0;
DWORD sz, type;
HKEY hkey;
TRACE("%s %s\n", debugstr_w(szProduct), debugstr_w(szFeature));
@ -1142,17 +1152,30 @@ INSTALLSTATE WINAPI MsiQueryFeatureStateW(LPCWSTR szProduct, LPCWSTR szFeature)
if (!squash_guid( szProduct, squishProduct ))
return INSTALLSTATE_INVALIDARG;
rc = MSIREG_OpenFeaturesKey(szProduct, &hkey, FALSE);
rc = MSIREG_OpenUserFeaturesKey(szProduct, &hkey, FALSE);
if (rc != ERROR_SUCCESS)
return INSTALLSTATE_UNKNOWN;
rc = RegQueryValueExW( hkey, szFeature, NULL, NULL, NULL, &sz);
buffer[0] = 0;
sz = sizeof buffer;
type = 0;
rc = RegQueryValueExW(hkey, szFeature, NULL, &type, (LPBYTE) buffer, &sz);
RegCloseKey(hkey);
if (rc == ERROR_SUCCESS)
return INSTALLSTATE_LOCAL;
TRACE("rc = %d buffer = %s\n", rc, debugstr_w(buffer));
return INSTALLSTATE_UNKNOWN;
if (rc != ERROR_SUCCESS || sz == 0 || type != REG_SZ)
return INSTALLSTATE_UNKNOWN;
if (buffer[0] == 6)
return INSTALLSTATE_ABSENT;
/* FIXME:
* Return INSTALLSTATE_ADVERTISED when
* the components exist in the registry, but not on the disk.
*/
return INSTALLSTATE_LOCAL;
}
/******************************************************************