Function windows_sys::Win32::UI::WindowsAndMessaging::DefMDIChildProcW

pub unsafe extern "system" fn DefMDIChildProcW(
    hwnd: HWND,
    umsg: u32,
    wparam: WPARAM,
    lparam: LPARAM
) -> LRESULT

Required features: "Win32_UI_WindowsAndMessaging", "Win32_Foundation"