IDS now supports the following new built-in SQL functions to perform common mathematical, casting, and bitmap operations, and for manipulating character string, date, and datetime values

IDS 现在支持一些新的内置 SQL 函数，这些函数有的执行常见的数学、类型转换和位图操作，有的操纵字符串、日期和日期时间值

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GDI output functions can be used with a memory device context only if a bitmap has been created and selected into that context.

GDI的输出函数只有当内存设备环境上有了位图画布之后，才能进行输出。

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