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🥅 当无法读取注册表时返回1.0

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BTMuli
2026-01-14 23:09:51 +08:00
parent 1975b989e0
commit 21315cab58
1 changed files with 9 additions and 5 deletions
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14
src-tauri/src/utils.rs
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@@ -1,5 +1,5 @@
// 杂项
// @since Beta v0.9.1
// @since Beta v0.9.2
/// 获取当前系统的文本缩放比例（TextScaleFactor）
/// 返回值示例：1.0 表示 100%，1.25 表示 125%
@@ -13,10 +13,14 @@ pub fn read_text_scale_factor() -> Result<f64, String> {
use winreg::enums::*;
use winreg::RegKey;
let hkcu = RegKey::predef(HKEY_CURRENT_USER);
let key = hkcu
.open_subkey("Software\\Microsoft\\Accessibility")
.map_err(|e| format!("无法打开注册表: {}", e))?;
// 如果打开失败，直接返回默认值 1.0
let key = match hkcu.open_subkey("Software\\Microsoft\\Accessibility") {
Ok(k) => k,
Err(e) => {
log::error!("无法打开注册表: {}", e);
return Ok(1.0);
}
};
let value: u32 = key.get_value("TextScaleFactor").unwrap_or(100u32); // 默认值为 100%
Ok(value as f64 / 100.0)