如何把当前图上数据保存为一个二进流对象?
VB开发|黄洪辉|2018-05-30 10:58
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回答:
主要用到函数说明:
MxDrawXCustomFunction::WriteBinStreamEx
把当前图上数据保存为一个二进流对象,详细说明如下:
参数 说明 LPCTSTR pszPassword = NULL
保存密码,默认为空
LONG lVersion = McDb::vAC18
保存版本号
代码实现如下:
Dim param As MxDrawResbuf Set param = New MxDrawResbuf Dim ret As MxDrawBinStream Set ret = MxDrawX1.CallEx("WriteBinStreamEx", param) If ret.GetCount() > 0 Then MsgBox "保存成功执行" End If ' 读取 Dim retRead As MxDrawResbuf Set retRead = MxDrawX1.CallEx("ReadBinStreamEx", ret) If retRead.AtString(0) = "Ok" Then MsgBox "读取成功执行" End If