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#![allow(non_camel_case_types, non_snake_case)]
use crate::co;
use crate::decl::*;
use crate::kernel::privs::*;
use crate::macros::*;
use crate::user::{callbacks, ffi};
handle! { HDC;
/// Handle to a
/// [device context](https://learn.microsoft.com/en-us/windows/win32/winprog/windows-data-types#hdc).
}
impl HDC {
/// [`DrawFocusRect`](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-drawfocusrect)
/// function.
pub fn DrawFocusRect(&self, rect: RECT) -> SysResult<()> {
BoolRet(unsafe { ffi::DrawFocusRect(self.ptr(), pcvoid(&rect)) }).to_sysresult()
}
/// [`DrawText`](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-drawtextw)
/// function.
pub fn DrawText(&self, text: &str, bounds: &mut RECT, format: co::DT) -> SysResult<i32> {
let wtext = WString::from_str(text);
match unsafe {
ffi::DrawTextW(
self.ptr(),
wtext.as_ptr(),
wtext.str_len() as _,
pvoid(bounds),
format.raw(),
)
} {
0 => Err(GetLastError()),
i => Ok(i),
}
}
/// [`DrawTextExW`](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-drawtextexw)
/// function.
pub fn DrawTextEx(
&self,
text: &str,
bounds: &mut RECT,
format: co::DT,
dtp: Option<&DRAWTEXTPARAMS>,
) -> SysResult<i32> {
let wtext = WString::from_str(text);
match unsafe {
ffi::DrawTextExW(
self.ptr(),
wtext.as_ptr(),
wtext.str_len() as _,
pvoid(bounds),
format.raw(),
pcvoid_or_null(dtp),
)
} {
0 => Err(GetLastError()),
i => Ok(i),
}
}
/// [`EnumDisplayMonitors`](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-enumdisplaymonitors)
/// function.
///
/// # Examples
///
/// ```no_run
/// use winsafe::{self as w, prelude::*};
///
/// let hdc: w::HDC; // initialized somewhere
/// # let hdc = w::HDC::NULL;
///
/// hdc.EnumDisplayMonitors(
/// None,
/// |hmon: w::HMONITOR, hdc: w::HDC, rc: &w::RECT| -> bool {
/// println!("HMONITOR: {}, ", hmon);
/// true
/// },
/// )?;
/// # w::SysResult::Ok(())
/// ```
pub fn EnumDisplayMonitors<F>(&self, rc_clip: Option<RECT>, func: F) -> SysResult<()>
where
F: FnMut(HMONITOR, HDC, &RECT) -> bool,
{
BoolRet(unsafe {
ffi::EnumDisplayMonitors(
self.ptr(),
pcvoid_or_null(rc_clip.as_ref()),
callbacks::hdc_enum_display_monitors::<F> as _,
pcvoid(&func),
)
})
.to_sysresult()
}
/// [`ExcludeUpdateRgn`](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-excludeupdatergn)
/// function.
pub fn ExcludeUpdateRgn(&self, hwnd: &HWND) -> SysResult<co::REGION> {
match unsafe { ffi::ExcludeUpdateRgn(self.ptr(), hwnd.ptr()) } {
0 => Err(co::ERROR::INVALID_PARAMETER),
v => Ok(unsafe { co::REGION::from_raw(v) }),
}
}
/// [`FrameRect`](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-framerect)
/// function.
pub fn FrameRect(&self, rc: RECT, hbr: &HBRUSH) -> SysResult<()> {
BoolRet(unsafe { ffi::FrameRect(self.ptr(), pcvoid(&rc), hbr.ptr()) }).to_sysresult()
}
/// [`InvertRect`](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-invertrect)
/// function.
pub fn InvertRect(&self, rc: RECT) -> SysResult<()> {
BoolRet(unsafe { ffi::InvertRect(self.ptr(), pcvoid(&rc)) }).to_sysresult()
}
/// [`PaintDesktop`](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-paintdesktop)
/// function.
pub fn PaintDesktop(&self) -> SysResult<()> {
BoolRet(unsafe { ffi::PaintDesktop(self.ptr()) }).to_sysresult()
}
/// [`WindowFromDC`](https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-windowfromdc)
/// function.
#[must_use]
pub fn WindowFromDC(&self) -> Option<HWND> {
PtrRet(unsafe { ffi::WindowFromDC(self.ptr()) }).to_opt_handle()
}
}