[NativeAPI] 小更改，修正 GetMemberList 构造返回结构体的地址偏移量 (#91)

Author: kamenomi-dev

Lagrange.Core.NativeAPI/OperateGroupEntryPoint.cs

@@ -104,7 +104,7 @@ public static IntPtr GetMemberList(int index, long groupUin, bool refresh /*= fa
             {
                 Marshal.StructureToPtr(
                     (BotGroupMemberStruct)members[i],
-                    result.Events + i * Marshal.SizeOf<BotGroupStruct>(),
+                    result.Events + i * Marshal.SizeOf<BotGroupMemberStruct>(),
                     false
                 );
             }
@@ -246,13 +246,15 @@ private static IntPtr GetGroupNotificationsStructPtr(List<BotGroupNotificationBa
                             false
                         );
                         break;
+
                     case BotGroupNotificationType.SetAdmin:
                         Marshal.StructureToPtr(
                             (BotGroupSetAdminNotificationStruct)(BotGroupSetAdminNotification)notifications[i],
                             result.Events + i * Marshal.SizeOf<BotGroupSetAdminNotificationStruct>(),
                             false
                         );
                         break;
+
                     case BotGroupNotificationType.KickOther:
                     case BotGroupNotificationType.KickSelf:
                         Marshal.StructureToPtr(
@@ -261,20 +263,23 @@ private static IntPtr GetGroupNotificationsStructPtr(List<BotGroupNotificationBa
                             false
                         );
                         break;
+
                     case BotGroupNotificationType.Exit:
                         Marshal.StructureToPtr(
                             (BotGroupExitNotificationStruct)(BotGroupExitNotification)notifications[i],
                             result.Events + i * Marshal.SizeOf<BotGroupExitNotificationStruct>(),
                             false
                         );
                         break;
+
                     case BotGroupNotificationType.UnsetAdmin:
                         Marshal.StructureToPtr(
                             (BotGroupUnsetAdminNotificationStruct)(BotGroupUnsetAdminNotification)notifications[i],
                             result.Events + i * Marshal.SizeOf<BotGroupUnsetAdminNotificationStruct>(),
                             false
                         );
                         break;
+
                     case BotGroupNotificationType.Invite:
                         Marshal.StructureToPtr(
                             (BotGroupInviteNotificationStruct)(BotGroupInviteNotification)notifications[i],