“Handle to the memory block that stores the messages.”的意思?

问题描述:

“Handle to the memory block that stores the messages.”的意思?
是“处理存放信息的内存快”吗?
是“内存块处理的储存讯息”吗?
是“存放信息的内存块的句柄”吗?
这句话出自输入法程序中用到的结构INPUTCONTEXT的成员hMsgBuf 的说明。其上下文是:
hMsgBuf
Handle to the memory block that stores the messages.The format of this memory block is:
[Message1] [wParam1] [lParam1] {[Message2] [wParam2] [lParam2]{...{...{...}}}}

是“存放信息的内存块的句柄”