44 lines
1.1 KiB
Rust
44 lines
1.1 KiB
Rust
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use std::thread;
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use std::sync::mpsc;
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#[repr(C)]
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pub struct WindowsKeyboardBackend {
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pub sender: mpsc::Sender<char>
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}
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impl super::KeyboardBackend for WindowsKeyboardBackend {
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fn initialize(&self) {
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unsafe {
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register_keypress_callback(self,keypress_callback);
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}
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}
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fn start(&self) {
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thread::spawn(|| {
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unsafe {
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initialize_window();
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eventloop();
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}
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});
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}
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}
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// Native bridge code
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extern fn keypress_callback(_self: *mut WindowsKeyboardBackend, raw_buffer: *const i32, len: i32) {
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unsafe {
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// Convert the received buffer to a character
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let buffer = std::slice::from_raw_parts(raw_buffer, len as usize);
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let r = std::char::from_u32(buffer[0] as u32).unwrap();
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// Send the char through the channel
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(*_self).sender.send(r).unwrap();
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}
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}
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#[link(name="winbridge", kind="static")]
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extern {
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fn register_keypress_callback(s: *const WindowsKeyboardBackend, cb: extern fn(_self: *mut WindowsKeyboardBackend, *const i32, i32));
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fn initialize_window();
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fn eventloop();
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}
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