Function FREReleaseNativeWindowHandle 

pub unsafe extern "C" fn FREReleaseNativeWindowHandle(
    nativeWindow: FREObject,
) -> FREResult

Returns

• FREResult::FRE_OK
• FREResult::FRE_INVALID_OBJECT
• FREResult::FRE_ILLEGAL_STATE
• FREResult::FRE_WRONG_THREAD