variant

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Is it necessary to assign a default value to a variant returned from a Delphi function?

Gradually I\'ve been using more variants - they can be very useful in certain places for carrying data types that are not known at compile time. One useful value is UnAssigned (开发者_JS百科\'I\'ve no[详细]

2023-03-18 00:49 分类：问答
Variable Length Quantity C to Objective-C

How can I convert an int to an VLQ in Objective-C, basically so I can get the Variant like in http://code.google.com/apis/protocolbuffers/docs/encoding.html[详细]

2023-03-14 08:26 分类：问答
C# - Calling unmanaged C++ function passing LPVARIANT

I want to call the following function from my managed code: short LS_LoadConfig(LS_ID SensorID,LPVARIANT varConfigPathFile,BOOL bInit)[详细]

2023-03-14 08:02 分类：问答
How to prune a Java program

Let\'s me start from what I want to do then raising some questions I have. I want to develop a general Java program which is a superset of a number of programs (let\'s call them program variants). In[详细]

2023-03-14 05:53 分类：问答
Howto use a GUID as an ADO query parameter using C++ ADO

Given a SQL Server database that uses uniqueidentifiers as primary key fields for the table I want to query and a GUID struct (included via rpc.h) that has the value of one of the entries in the table[详细]

2023-03-11 02:30 分类：问答
Why am I getting "The type parameter must be invariantly valid..." error?

I\'ll attempt to shorten this code example: public interface IThing { //...Stuff } public class Thing1 : IThing[详细]

2023-03-08 10:32 分类：问答
convert VARIANT to unsigned char array

I\'m using Comm32 (an activeX control) to get data coming through serial port using the method GetInput().[详细]

2023-03-05 23:04 分类：问答
Conversion system for variants

I have written a variant class, which will be used as the main type in a dynamic language, that will ultimately allow 256 different types of value (header is an unsigned byte, only 20 are actually use[详细]

2023-03-04 09:22 分类：问答
How do I access late bound nested properties and methods?

I want to know what is the proper way to access a late bound property or method from Delphi when the property to access is nested inside another property. Let me explain.[详细]

2023-02-25 16:54 分类：问答
Tool or function to monitor the memory consuption of variants and comobjects

I would like to know if there exists any tool (like a profiler), or a Windows function, to monitor how much memory is used by 开发者_开发知识库a particular COM object.[详细]

2023-02-25 16:51 分类：问答