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Add win32_get_registry_value_dword() helper function

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Co-authored-by: ashaduri <2302268+ashaduri@users.noreply.github.com>
This commit is contained in:
anthropic-code-agent[bot]
2026-03-06 15:01:41 +00:00
co-authored by ashaduri
parent b94d94abd2
commit aafae25aca
1 changed files with 51 additions and 0 deletions
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src/hz/win32_tools.h
+51
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@@ -79,6 +79,14 @@ inline bool win32_set_registry_value_string(HKEY base,
const std::string& keydir, const std::string& key, const std::string& value);
/// Get registry value as a DWORD.
/// Base may be e.g. HKEY_CURRENT_USER.
/// Note that this works only with REG_DWORD types.
/// False is returned for all other types.
inline bool win32_get_registry_value_dword(HKEY base,
const std::string& keydir, const std::string& key, DWORD& put_here);
/// Redirect stdout and stderr to console window (if open). Requires winxp (at compile-time).
/// \param create_if_none if true, create a new console if none was found and attach to it.
/// \return false if failed or unsupported.
@@ -340,6 +348,49 @@ inline bool win32_set_registry_value_string(HKEY base,
// Get registry value as a DWORD.
// Note that this works only with REG_DWORD types.
inline bool win32_get_registry_value_dword(HKEY base,
const std::string& keydir, const std::string& key, DWORD& put_here)
{
std::wstring wkeydir = win32_utf8_to_utf16(keydir);
if (wkeydir.empty())
return false;
HKEY reg_key = nullptr;
bool open_status = (RegOpenKeyExW(base, wkeydir.c_str(), 0, KEY_QUERY_VALUE, &reg_key) == ERROR_SUCCESS);
if (!open_status)
return false;
bool ok = false;
std::wstring wkey = win32_utf8_to_utf16(key, &ok);
if (!ok) { // conversion error. Note that an empty string is not an error.
if (reg_key)
RegCloseKey(reg_key);
return false;
}
DWORD type = 0;
DWORD value = 0;
DWORD nbytes = sizeof(DWORD);
bool status = (RegQueryValueExW(reg_key, wkey.c_str(), nullptr, &type,
reinterpret_cast<BYTE*>(&value), &nbytes) == ERROR_SUCCESS);
if (status && type == REG_DWORD) {
put_here = value;
} else {
status = false;
}
if (reg_key)
RegCloseKey(reg_key);
return status;
}
// Redirect stdout and stderr to console window (if open).
inline bool win32_redirect_stdio_to_console(bool create_if_none)
{