mirror of https://github.com/bsnes-emu/bsnes.git
119 lines
4.1 KiB
C++
119 lines
4.1 KiB
C++
#pragma once
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#include <nall/platform.hpp>
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#include <nall/string.hpp>
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#include <shlwapi.h>
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#undef interface
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#ifndef KEY_WOW64_64KEY
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#define KEY_WOW64_64KEY 0x0100
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#endif
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#ifndef KEY_WOW64_32KEY
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#define KEY_WOW64_32KEY 0x0200
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#endif
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#ifndef NWR_FLAGS
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#define NWR_FLAGS KEY_WOW64_64KEY
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#endif
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#ifndef NWR_SIZE
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#define NWR_SIZE 4096
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#endif
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namespace nall {
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struct registry {
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static auto exists(const string& name) -> bool {
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lstring part = name.split("/");
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HKEY handle, rootKey = root(part.take(0));
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string node = part.take();
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string path = part.merge("\\");
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if(RegOpenKeyExW(rootKey, utf16_t(path), 0, NWR_FLAGS | KEY_READ, &handle) == ERROR_SUCCESS) {
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wchar_t data[NWR_SIZE] = L"";
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DWORD size = NWR_SIZE * sizeof(wchar_t);
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LONG result = RegQueryValueExW(handle, utf16_t(node), nullptr, nullptr, (LPBYTE)&data, (LPDWORD)&size);
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RegCloseKey(handle);
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if(result == ERROR_SUCCESS) return true;
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}
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return false;
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}
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static auto read(const string& name) -> string {
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lstring part = name.split("/");
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HKEY handle, rootKey = root(part.take(0));
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string node = part.take();
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string path = part.merge("\\");
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if(RegOpenKeyExW(rootKey, utf16_t(path), 0, NWR_FLAGS | KEY_READ, &handle) == ERROR_SUCCESS) {
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wchar_t data[NWR_SIZE] = L"";
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DWORD size = NWR_SIZE * sizeof(wchar_t);
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LONG result = RegQueryValueExW(handle, utf16_t(node), nullptr, nullptr, (LPBYTE)&data, (LPDWORD)&size);
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RegCloseKey(handle);
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if(result == ERROR_SUCCESS) return (const char*)utf8_t(data);
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}
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return "";
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}
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static auto write(const string& name, const string& data = "") -> void {
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lstring part = name.split("/");
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HKEY handle, rootKey = root(part.take(0));
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string node = part.take(), path;
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DWORD disposition;
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for(uint n = 0; n < part.size(); n++) {
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path.append(part[n]);
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if(RegCreateKeyExW(rootKey, utf16_t(path), 0, nullptr, 0, NWR_FLAGS | KEY_ALL_ACCESS, nullptr, &handle, &disposition) == ERROR_SUCCESS) {
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if(n == part.size() - 1) {
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RegSetValueExW(handle, utf16_t(node), 0, REG_SZ, (BYTE*)(wchar_t*)utf16_t(data), (data.length() + 1) * sizeof(wchar_t));
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}
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RegCloseKey(handle);
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}
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path.append("\\");
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}
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}
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static auto remove(const string& name) -> bool {
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lstring part = name.split("/");
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HKEY rootKey = root(part.take(0));
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string node = part.take();
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string path = part.merge("\\");
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if(node.empty()) return SHDeleteKeyW(rootKey, utf16_t(path)) == ERROR_SUCCESS;
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return SHDeleteValueW(rootKey, utf16_t(path), utf16_t(node)) == ERROR_SUCCESS;
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}
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static auto contents(const string& name) -> lstring {
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lstring part = name.split("/"), result;
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HKEY handle, rootKey = root(part.take(0));
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part.remove();
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string path = part.merge("\\");
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if(RegOpenKeyExW(rootKey, utf16_t(path), 0, NWR_FLAGS | KEY_READ, &handle) == ERROR_SUCCESS) {
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DWORD folders, nodes;
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RegQueryInfoKey(handle, nullptr, nullptr, nullptr, &folders, nullptr, nullptr, &nodes, nullptr, nullptr, nullptr, nullptr);
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for(uint n = 0; n < folders; n++) {
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wchar_t name[NWR_SIZE] = L"";
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DWORD size = NWR_SIZE * sizeof(wchar_t);
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RegEnumKeyEx(handle, n, (wchar_t*)&name, &size, nullptr, nullptr, nullptr, nullptr);
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result.append(string{(const char*)utf8_t(name), "/"});
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}
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for(uint n = 0; n < nodes; n++) {
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wchar_t name[NWR_SIZE] = L"";
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DWORD size = NWR_SIZE * sizeof(wchar_t);
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RegEnumValueW(handle, n, (wchar_t*)&name, &size, nullptr, nullptr, nullptr, nullptr);
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result.append((const char*)utf8_t(name));
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}
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RegCloseKey(handle);
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}
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return result;
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}
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private:
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static auto root(const string& name) -> HKEY {
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if(name == "HKCR") return HKEY_CLASSES_ROOT;
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if(name == "HKCC") return HKEY_CURRENT_CONFIG;
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if(name == "HKCU") return HKEY_CURRENT_USER;
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if(name == "HKLM") return HKEY_LOCAL_MACHINE;
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if(name == "HKU" ) return HKEY_USERS;
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return nullptr;
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}
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};
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}
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