lwrite

lwrite

VB聲明

Declare Function lwrite Lib "kernel32" Alias "_lwrite" (ByVal hFile As Long, ByVal lpBuffer As String, ByVal wBytes As Long) As Long

說(shuō)明

將數(shù)據(jù)從內(nèi)存緩沖區(qū)寫(xiě)入一個(gè)文件

返回值

Long，寫(xiě)入的字節(jié)數(shù)。HFILE_ERROR意味著函數(shù)執(zhí)行出錯(cuò)。如這個(gè)數(shù)字小于wBytes，則表明早已抵達(dá)了文件的末尾。會(huì)設(shè)置GetLastError

參數(shù)表

參數(shù)

類(lèi)型及說(shuō)明

hFile

Long，文件句柄

lpBuffer

String，指定一個(gè)內(nèi)存塊的指針，把這個(gè)內(nèi)存塊的數(shù)據(jù)寫(xiě)入文件

wBytes

Long，要寫(xiě)入的字節(jié)數(shù)

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