48 lines
1.3 KiB
Rust
48 lines
1.3 KiB
Rust
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use std::ffi::CString;
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use x11::xlib as x;
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use Window;
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use X11Error;
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/// A connection to an X server.
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pub struct Display {
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inner: *mut x::Display,
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}
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impl Display {
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/// Opens a new connection to an X server.
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///
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/// On POSIX-conformant systems, the display name or DISPLAY environment variable can be a string in the format:
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/// hostname:number.screen_number
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pub fn connect(display_name: impl AsRef<str>) -> Result<Display, X11Error> {
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let display_name = CString::new(display_name.as_ref()).unwrap();
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let inner = unsafe { x::XOpenDisplay(display_name.as_ptr()) };
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Ok(Display { inner })
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}
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/// Returns the root window for the given screen.
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pub fn get_root_window(&self, screen: i32) -> Result<Window, X11Error> {
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let window = Window {
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display: self.inner,
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inner: unsafe { x::XRootWindow(self.inner, screen) },
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};
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Ok(window)
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}
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/// Returns the root window for the default screen.
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pub fn get_default_root_window(&self) -> Result<Window, X11Error> {
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let window = Window {
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display: self.inner,
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inner: unsafe { x::XDefaultRootWindow(self.inner) },
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};
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Ok(window)
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}
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}
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impl Drop for Display {
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fn drop(&mut self) {
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unsafe { x::XCloseDisplay(self.inner) };
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}
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}
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