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[RAPPS] Use RegDeleteKeyExW for deleting the apps strings from registry only if it is available in advapi32

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Otherwise, use `RegDeleteKeyW` instead, on Windows versions whose don't have the Ex function (XP SP3 x32, Server 2003 SP0 and earlier).
It will fix regression with Rapps startup there, due to that missing function.
CORE-17264
This commit is contained in:
Oleg Dubinskiy 2020-09-16 17:54:20 +03:00 committed by Mark Jansen
parent 889b077b23
commit b62948ef77
1 changed files with 20 additions and 2 deletions
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22
base/applications/rapps/installed.cpp
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@ -141,16 +141,34 @@ BOOL CInstalledApplicationInfo::UninstallApplication(BOOL bModify)
return StartProcess(bModify ? szModifyPath : szUninstallString, TRUE);
}
typedef LSTATUS (WINAPI *RegDeleteKeyExWProc)(HKEY, LPCWSTR, REGSAM, DWORD);
LSTATUS CInstalledApplicationInfo::RemoveFromRegistry()
{
ATL::CStringW szFullName = L"Software\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\" + szKeyName;
HMODULE hMod = GetModuleHandleW(L"advapi32.dll");
RegDeleteKeyExWProc pRegDeleteKeyExW;
// TODO: if there are subkeys inside, simply RegDeleteKeyExW will fail
// TODO: if there are subkeys inside, simply RegDeleteKeyExW
// (or RegDeleteKeyW on Server 2003 SP0 and earlier) will fail
// we don't have RegDeleteTree for ReactOS now. (It's a WinVista API)
// write a function to delete all subkeys recursively to solve this
// or consider letting ReactOS having this API
return RegDeleteKeyExW(IsUserKey ? HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE, szFullName, WowKey, 0);
/* Load RegDeleteKeyExW from advapi32.dll if available */
if (hMod)
{
pRegDeleteKeyExW = (RegDeleteKeyExWProc)GetProcAddress(hMod, "RegDeleteKeyExW");
if (pRegDeleteKeyExW)
{
/* Return it */
return pRegDeleteKeyExW(IsUserKey ? HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE, szFullName, WowKey, 0);
}
}
/* Otherwise, return non-Ex function */
return RegDeleteKeyW(IsUserKey ? HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE, szFullName);
}
BOOL CInstalledApps::Enum(INT EnumType, APPENUMPROC lpEnumProc, PVOID param)