Revision control
Copy as Markdown
Other Tools
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
use std::cell::UnsafeCell;
use std::ptr;
use winapi::um::dwrite::IDWriteBitmapRenderTarget;
use winapi::um::dwrite::IDWriteGdiInterop;
use wio::com::ComPtr;
use super::{BitmapRenderTarget, DWriteFactory};
pub struct GdiInterop {
native: UnsafeCell<ComPtr<IDWriteGdiInterop>>,
}
impl GdiInterop {
pub fn create() -> GdiInterop {
unsafe {
let mut native: *mut IDWriteGdiInterop = ptr::null_mut();
let hr = (*DWriteFactory()).GetGdiInterop(&mut native);
assert!(hr == 0);
GdiInterop::take(ComPtr::from_raw(native))
}
}
pub fn take(native: ComPtr<IDWriteGdiInterop>) -> GdiInterop {
GdiInterop {
native: UnsafeCell::new(native),
}
}
pub fn create_bitmap_render_target(&self, width: u32, height: u32) -> BitmapRenderTarget {
unsafe {
let mut native: *mut IDWriteBitmapRenderTarget = ptr::null_mut();
let hr = (*self.native.get()).CreateBitmapRenderTarget(
ptr::null_mut(),
width,
height,
&mut native,
);
assert!(hr == 0);
BitmapRenderTarget::take(ComPtr::from_raw(native))
}
}
}