From 91274c58b1772dfe38d3fcab291693141e822684 Mon Sep 17 00:00:00 2001
From: Daniel <49284193+dnlkrs@users.noreply.github.com>
Date: 周五, 06 12月 2024 21:55:30 +0800
Subject: [PATCH] Fix WindowsRegistryKey for Qt 6.8.1 (#154)
---
src/core/qwindowkit_windows.cpp | 69 ++++++++++++++++++++++++++++++++++
1 files changed, 69 insertions(+), 0 deletions(-)
diff --git a/src/core/qwindowkit_windows.cpp b/src/core/qwindowkit_windows.cpp
index 8292de5..a9cc371 100644
--- a/src/core/qwindowkit_windows.cpp
+++ b/src/core/qwindowkit_windows.cpp
@@ -1,3 +1,7 @@
+// Copyright (C) 2023-2024 Stdware Collections (https://www.github.com/stdware)
+// Copyright (C) 2021-2023 wangwenx190 (Yuhang Zhao)
+// SPDX-License-Identifier: Apache-2.0
+
#include "qwindowkit_windows.h"
namespace QWK {
@@ -22,4 +26,69 @@
}
+#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
+ WindowsRegistryKey::WindowsRegistryKey(HKEY parentHandle, QStringView subKey,
+ REGSAM permissions, REGSAM access) {
+ if (::RegOpenKeyExW(parentHandle, reinterpret_cast<const wchar_t *>(subKey.utf16()), 0,
+ permissions | access, &m_key) != ERROR_SUCCESS) {
+ m_key = nullptr;
+ }
+ }
+
+ WindowsRegistryKey::~WindowsRegistryKey() {
+ close();
+ }
+
+ void WindowsRegistryKey::close() {
+ if (isValid()) {
+ ::RegCloseKey(m_key);
+ m_key = nullptr;
+ }
+ }
+
+ QString WindowsRegistryKey::stringValue(QStringView subKey) const {
+ QString result;
+ if (!isValid())
+ return result;
+ DWORD type;
+ DWORD size;
+ auto subKeyC = reinterpret_cast<const wchar_t *>(subKey.utf16());
+ if (::RegQueryValueExW(m_key, subKeyC, nullptr, &type, nullptr, &size) != ERROR_SUCCESS ||
+ (type != REG_SZ && type != REG_EXPAND_SZ) || size <= 2) {
+ return result;
+ }
+ // Reserve more for rare cases where trailing '\0' are missing in registry.
+ // Rely on 0-termination since strings of size 256 padded with 0 have been
+ // observed (QTBUG-84455).
+ size += 2;
+ QVarLengthArray<unsigned char> buffer(static_cast<int>(size));
+ std::fill(buffer.data(), buffer.data() + size, 0u);
+ if (::RegQueryValueExW(m_key, subKeyC, nullptr, &type, buffer.data(), &size) ==
+ ERROR_SUCCESS)
+ result = QString::fromWCharArray(reinterpret_cast<const wchar_t *>(buffer.constData()));
+ return result;
+ }
+
+ QPair<DWORD, bool> WindowsRegistryKey::dwordValue(QStringView subKey) const {
+ if (!isValid())
+ return qMakePair(0, false);
+ DWORD type;
+ auto subKeyC = reinterpret_cast<const wchar_t *>(subKey.utf16());
+ if (::RegQueryValueExW(m_key, subKeyC, nullptr, &type, nullptr, nullptr) != ERROR_SUCCESS ||
+ type != REG_DWORD) {
+ return qMakePair(0, false);
+ }
+ DWORD value = 0;
+ DWORD size = sizeof(value);
+ const bool ok =
+ ::RegQueryValueExW(m_key, subKeyC, nullptr, nullptr,
+ reinterpret_cast<unsigned char *>(&value), &size) == ERROR_SUCCESS;
+ return qMakePair(value, ok);
+ }
+#elif QT_VERSION < QT_VERSION_CHECK(6, 8, 1)
+ WindowsRegistryKey::WindowsRegistryKey(HKEY parentHandle, QStringView subKey, REGSAM permissions, REGSAM access)
+ : QWinRegistryKey(parentHandle, subKey, permissions, access)
+ {
+ }
+#endif
}
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