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gdi32: Only delete unmodified font keys in delete_external_font_keys. 

Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Piotr Caban 2017-04-25 12:39:29 +02:00 committed by Alexandre Julliard
parent 93def703cf
commit 3471b59ae0
1 changed files with 13 additions and 3 deletions
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16
dlls/gdi32/freetype.c
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@ -3183,9 +3183,10 @@ static void update_reg_entries(void)
static void delete_external_font_keys(void)
{
HKEY winnt_key = 0, win9x_key = 0, external_key = 0;
DWORD dlen, vlen, datalen, valuelen, i, type;
DWORD dlen, plen, vlen, datalen, valuelen, i, type, path_type;
LPWSTR valueW;
LPVOID data;
BYTE *path;
if(RegCreateKeyExW(HKEY_LOCAL_MACHINE, winnt_font_reg_key,
0, NULL, 0, KEY_ALL_ACCESS, NULL, &winnt_key, NULL) != ERROR_SUCCESS) {
@ -3211,19 +3212,28 @@ static void delete_external_font_keys(void)
valuelen++; /* returned value doesn't include room for '\0' */
valueW = HeapAlloc(GetProcessHeap(), 0, valuelen * sizeof(WCHAR));
data = HeapAlloc(GetProcessHeap(), 0, datalen);
path = HeapAlloc(GetProcessHeap(), 0, datalen);
dlen = datalen;
vlen = valuelen;
i = 0;
while(RegEnumValueW(external_key, i++, valueW, &vlen, NULL, &type, data,
&dlen) == ERROR_SUCCESS) {
plen = dlen;
if (RegQueryValueExW(winnt_key, valueW, 0, &path_type, path, &plen) == ERROR_SUCCESS &&
type == path_type && dlen == plen && !memcmp(data, path, plen))
RegDeleteValueW(winnt_key, valueW);
plen = dlen;
if (RegQueryValueExW(win9x_key, valueW, 0, &path_type, path, &plen) == ERROR_SUCCESS &&
type == path_type && dlen == plen && !memcmp(data, path, plen))
RegDeleteValueW(win9x_key, valueW);
RegDeleteValueW(winnt_key, valueW);
RegDeleteValueW(win9x_key, valueW);
/* reset dlen and vlen */
dlen = datalen;
vlen = valuelen;
}
HeapFree(GetProcessHeap(), 0, path);
HeapFree(GetProcessHeap(), 0, data);
HeapFree(GetProcessHeap(), 0, valueW);