webview2_com_sys::Windows::Win32::UI::WindowsAndMessaging

Function SendMessageCallbackA

Source 
pub unsafe fn SendMessageCallbackA<'a>(
    hwnd: impl IntoParam<'a, HWND>,
    msg: u32,
    wparam: impl IntoParam<'a, WPARAM>,
    lparam: impl IntoParam<'a, LPARAM>,
    lpresultcallback: Option<SENDASYNCPROC>,
    dwdata: usize,
) -> BOOL