what variant

Introduction to the Delphi Variant type (variant) (Flow vs. Variant types, functions commonly used for variant types)first, the variant types commonly used functions are described:Variant: One can have a variety of data types, you can also tell what

In the 85. In the variant of basic and LotusScript, I mentioned variant variants in basic-style languages. Variant types are often used in lotusscript for a variety of reasons.1. The return type of a function cannot be declared as an array, and can

87. Let's talk about Variant and 87 variant.In the article Variant in 85. BASIC and LotusScript, I mentioned Variant in BASIC-style languages. Ing is often used in Lotus script for the following reasons. 1. The return type of the function cannot be

85. Variant and Lotus scriptvariant in BASIC and Lotus scriptOrigin Recently, I read back my Notes on Notes and found that in the Notes bugs category, there is almost no difference between the two numbers. 2. 'Type mismatch' occurs if an nested

BSTR, lpstr, lpwstr, cstring, variant, colevariant, _ variant_t, ccombstr, _ bstr_t visual c ++. net involves multiple programming methods such as ATL/ATL server, MFC, and hosting C ++. It is not only powerful but also widely used. In programming,

Original address: Http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Build-Variants6. Build variants (build variant version number)One goal of the new build system is to agree to create different version numbers for the same

Reference articlesHttp://blog.163.com/[email protected]/blog/static/16219623020107634935586/http://blog.csdn.net/dreamcs/article/details/7186633Http://blog.sina.com.cn/s/blog_6c3d32da0100ua13.htmlCOleVariant is the data type that the database is

The schematic diagram drawn in orcad is generally not just for a product. For example, a controller schematic diagram may correspond to many sub-product lines, and the difference between these sub-product lines is that the communication port

//Header file1 #pragmaOnce2 classVariantconvert3 {4 Public:5Variantconvert (void);6~variantconvert (void);7 8 Public:9 voidShort2variant ( ShortSdata,variant &va);Ten //VARIANT Short2var (shortsdata); One voidLong2variant

Variant (variant) Variant types can theoretically store any type of data, which is why many people in Chinese call it "variants." It is strange for a programmer with a strongly typed language such as C + + to have a Variant (variant) of that type.

This article Reprinted from: http://ygdljg.blog.163.com/blog/static/546010462008101191835269/ Http://www.vckbase.com/document/viewdoc? Id = 1096 Http://www.vckbase.com/document/viewdoc? Id = 1082 CW2A (BSTR)CW2A (_ bstr_t)CW2A (VARIANT. bstrVal)CW2A

The basic usage of the variant in boost: Copy Code code as follows: typedef VARIANT VT; VT v = 1; v = ' 2 '; v = 12.32; The advantage of a variant is that the type can be erased, and the values of different types are

Brief introduction To understand when and how to design product variants, be careful to observe the differences between products. Two different types of trucks, for example, may have more than 10 or more different characteristics. Usually, the

In Ole, ActiveX, and COM, the variant data type provides a very effective mechanism because it includes both the data itself and the data type, therefore, it can realize various automatic data transmission. Let's take a look at a simplified version

For your painter software users to detailed analysis to share the Brush Variation Setup Basic Tutorial. Tutorial Sharing: Variant (variant) is painter unique brush special noun, painter 8 is unprecedented in the built-in more

Http://www.ccw.com.cn/applic/prog/htm2003/20030423_096DZ.htm Convert data of the ADO control to a variant array   Use the clientdataset datarequest method to upload the variant array   Trigger the ondatarequest event of datasetprovider on

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Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> // The integer type is exactly four bytes, And the integer int type is one byte, but the memory in Windows is 4 bytes allocated, //

Variant is one of the important parameter variables for communication between COM components. It can accommodate a variety of different types, such as short, long, and double, including various pointers and arrays. Mutual calling between components

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