small performance improvements
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1 changed files with 4 additions and 2 deletions
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@ -1,6 +1,6 @@
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use winapi::um::winuser::GetKeyNameTextW;
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use std::ffi::OsString;
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use wio::wide::FromWide;
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use wio::wide::{FromWide, ToWide};
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pub mod logger;
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@ -9,6 +9,8 @@ pub fn scan_code_to_key_name(scan_code: u32) -> String {
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unsafe {
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let mut out = [0u16; 128];
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GetKeyNameTextW((scan_code << 16) as i32, (&mut out).as_mut_ptr(), 128);
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OsString::from_wide(&out).to_str().unwrap().replace('\0', "")
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let null_pos = out.iter().position(|x| *x == b'\0' as u16).unwrap_or_else(|| out.len());
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//use to_string_lossy to avoid unicode checks for better performance. if the windows api screws up thats not my fault :P
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OsString::from_wide(&out[..null_pos]).to_string_lossy().into()
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}
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}
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