Comments (1)
You could use bindgen for those signatures, or you could put a struct around the commctrl window pointer and treat it as an opaque C type. (Separately I filed #13 to allow skipping the struct wrapper to treat void* itself as the opaque C type.)
// about.h
struct CommctrlWindow {
void *p;
};
void ShowMessageBox(const CommctrlWindow &parent, int otherData);
// about.cpp
#include "gui/about.h"
#include "src/lib.rs"
void ShowMessageBox(const CommctrlWindow &parent, int otherData) {
void *p = parent.p;
(void)p;
(void)otherData;
}
// lib.rs
use cxx::UniquePtr;
use ffi::CommctrlWindow;
#[cxx::bridge]
mod ffi {
extern "C" {
include!("gui/about.h");
type CommctrlWindow;
fn ShowMessageBox(parent: &CommctrlWindow, other_data: i32);
}
extern "Rust" {
fn function_called_from_c(
parent: UniquePtr<CommctrlWindow>,
other_data: i32,
);
}
}
fn function_called_from_c(parent: UniquePtr<CommctrlWindow>, other_data: i32) {
// processing and such
let parent = parent.as_ref().unwrap();
ffi::ShowMessageBox(parent, other_data);
}
Note: make sure to pull in cxx 0.1.1 because 0.1.0 had a bug in passing UniquePtr as an extern "Rust" function argument (#14).
from cxx.
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from cxx.