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#![allow(non_camel_case_types, non_snake_case)]
use crate::co;
use crate::decl::*;
use crate::guard::*;
use crate::kernel::{ffi, privs::*};
use crate::prelude::*;
impl_handle! { HSTD;
/// Handle to a
/// [standard device](https://learn.microsoft.com/en-us/windows/console/getstdhandle).
/// Originally just a `HANDLE`.
}
impl kernel_Hstd for HSTD {}
/// This trait is enabled with the `kernel` feature, and provides methods for
/// [`HSTD`](crate::HSTD).
///
/// Prefer importing this trait through the prelude:
///
/// ```no_run
/// use winsafe::prelude::*;
/// ```
pub trait kernel_Hstd: Handle {
/// [`FlushConsoleInputBuffer`](https://learn.microsoft.com/en-us/windows/console/flushconsoleinputbuffer)
/// function.
fn FlushConsoleInputBuffer(&self) -> SysResult<()> {
bool_to_sysresult(unsafe { ffi::FlushConsoleInputBuffer(self.ptr()) })
}
/// [`GetConsoleMode`](https://learn.microsoft.com/en-us/windows/console/getconsolemode)
/// function.
#[must_use]
fn GetConsoleMode(&self) -> SysResult<co::CONSOLE> {
let mut mode = co::CONSOLE::default();
bool_to_sysresult(
unsafe { ffi::GetConsoleMode(self.ptr(), mode.as_mut()) },
).map(|_| mode)
}
/// [`GetStdHandle`](https://learn.microsoft.com/en-us/windows/console/getstdhandle)
/// function.
#[must_use]
fn GetStdHandle(
std_handle: co::STD_HANDLE,
) -> SysResult<CloseHandleGuard<HSTD>>
{
unsafe {
match HSTD::from_ptr(ffi::GetStdHandle(std_handle.raw())) {
HSTD::INVALID => Err(GetLastError()),
handle => Ok(CloseHandleGuard::new(handle)),
}
}
}
/// [`ReadConsole`](https://learn.microsoft.com/en-us/windows/console/readconsole)
/// function.
///
/// Returns the number of chars actually written.
///
/// # Examples
///
/// ```no_run
/// use winsafe::{self as w, prelude::*, co};
///
/// let hstd = w::HSTD::GetStdHandle(co::STD_HANDLE::INPUT)?;
///
/// let mut buffer = w::WString::new_alloc_buf(2048);
/// hstd.ReadConsole(&mut buffer, None)?;
///
/// let text = buffer.to_string();
/// # w::SysResult::Ok(())
/// ```
#[must_use]
fn ReadConsole(&self,
buffer: &mut WString,
input_control: Option<&CONSOLE_READCONSOLE_CONTROL>,
) -> SysResult<u32>
{
let mut num_read = u32::default();
bool_to_sysresult(
unsafe {
ffi::ReadConsoleW(
self.ptr(),
buffer.as_mut_ptr() as _,
buffer.buf_len() as _,
&mut num_read,
input_control.map_or(std::ptr::null_mut(), |p| p as *const _ as _),
)
},
).map(|_| num_read)
}
/// [`SetConsoleMode`](https://learn.microsoft.com/en-us/windows/console/setconsolemode)
/// function.
fn SetConsoleMode(&self, mode: co::CONSOLE) -> SysResult<()> {
bool_to_sysresult(unsafe { ffi::SetConsoleMode(self.ptr(), mode.raw()) })
}
/// [`WriteConsole`](https://learn.microsoft.com/en-us/windows/console/writeconsole)
/// function.
///
/// Returns the number of chars actually written.
fn WriteConsole(&self, text: &str) -> SysResult<u32> {
let buf = WString::from_str(text);
let mut num_written = u32::default();
unsafe {
bool_to_sysresult(
ffi::WriteConsoleW(
self.ptr(),
buf.as_ptr() as _,
buf.str_len() as _,
&mut num_written,
std::ptr::null_mut(),
),
)
}.map(|_| num_written)
}
}