Function windows_sys::Win32::Security::WinTrust::WTHelperGetProvSignerFromChain
pub unsafe extern "system" fn WTHelperGetProvSignerFromChain(
pprovdata: *mut CRYPT_PROVIDER_DATA,
idxsigner: u32,
fcountersigner: BOOL,
idxcountersigner: u32,
) -> *mut CRYPT_PROVIDER_SGNR