delphi 动态调用API

function __IsNativeVhdBoot: Boolean;
type
  TIsNativeVhdBoot = function(
    NativeVhdBoot: pBOOL
  ): BOOL; stdcall;
var
  bNativeVhdBoot: pBOOL;
  NativeVhdBoot : TIsNativeVhdBoot;
begin
  Result := False;
  NativeVhdBoot := GetProcAddress(GetModuleHandle(kernel32),‘IsNativeVhdBoot‘);
  if (@NativeVhdBoot <> nil) then
  begin
    if not NativeVhdBoot(bNativeVhdBoot) then
      RaiseLastOSError;
    Result := bNativeVhdBoot^;
  end
  else
    RaiseLastOSError;
end;

function IsNativeVhdBoot(NativeVhdBoot:PBOOL):BOOL; external Kernel32 name ‘IsNativeVhdBoot‘;

function _IsNativeVhdBoot:Boolean;
var
  pB:PBOOL;
begin
  Result := False;
  if IsNativeVhdBoot(pB) then
    Result := pB^
  else RaiseLastOSError;
end;