refacotr: use omrf to replace all wheels I invented

wfassoc-cdylib/src/wrapper.rs

@@ -0,0 +1,73 @@
+//! The module including all wrapper types for FFI.
+
+use std::ffi::c_void;
+use num_enum::TryFromPrimitive;
+
+// region: HICON
+
+/// The type representing Win32 HICON handle.
+/// 
+/// In theory, we can fetch HICON type from "windows_sys" crate.
+/// However, I don't want to add it as this crate's dependency,
+/// because I don't use anything within it except this type.
+/// So I check Microsoft document, re-define it in there for this crate.
+/// Reference: <https://learn.microsoft.com/en-us/windows/win32/winprog/windows-data-types>
+pub type HICON = *mut c_void;
+
+/// The invalid value of Win32 HICON handle.
+/// 
+/// The same reason like [WFHICON] to re-define it in there.
+pub const INVALID_HICON: HICON = std::ptr::null_mut();
+
+// endregion
+
+// region: Scope
+
+/// The FFI wrapper for [wfassoc::Scope].
+#[repr(u32)]
+#[derive(Debug, Copy, Clone, TryFromPrimitive)]
+pub enum Scope {
+    User = 0,
+    System = 1,
+}
+
+impl From<Scope> for wfassoc::Scope {
+    fn from(value: Scope) -> Self {
+        match value {
+            Scope::User => wfassoc::Scope::User,
+            Scope::System => wfassoc::Scope::System,
+        }
+    }
+}
+
+// endregion
+
+// region: View
+
+/// The FFI wrapper for [wfassoc::View].
+#[repr(u32)]
+#[derive(Debug, Copy, Clone, TryFromPrimitive)]
+pub enum View {
+    User = 0,
+    System = 1,
+    Hybrid = 2,
+}
+
+impl From<View> for wfassoc::View {
+    fn from(value: View) -> Self {
+        match value {
+            View::User => wfassoc::View::User,
+            View::System => wfassoc::View::System,
+            View::Hybrid => wfassoc::View::Hybrid,
+        }
+    }
+}
+
+// endregion
+
+// region: Misc Types and Constants
+
+/// The invalid value of index.
+pub const INVALID_INDEX: usize = usize::MAX;
+
+// endregion