vb在数据库中储存图片并显示出来
'**************************读图片文件**************************************
Sub GetPicfromDB(cn As ADODB.Connection)
On Error Resume Next
Dim fld As Field
Dim strTemp As String
Dim stm As ADODB.Stream
Set stm = New ADODB.Stream
'strTemp = "c:\temp.bmp"
Set rs1 = New ADODB.Recordset
rs1.Open "select * from rs_http where htbh='" & frm_manage.Grid2.TextMatrix(frm_manage.Grid2.RowSel, 0) & "'", cn, , , adCmdText
While Not rs1.EOF
'*********将数据库中的文件读到硬盘上*************************
' strTemp = App.Path + "\temp\" + rs1!Name '`临时文件,用来保存读出的图片
With stm
&nb
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在线
VB.net和C#在线互转工具
http://bbs.51aspx.com/showtopic-2059.html
Convert VB.NET to C#
http://www.developerfusion.com/tools/convert/vb-to- ......
Private Sub Cmd_OK_Click()
Dim ExcelAppX As Excel.Application
Dim ExcelBookX As Excel.Workbook
Dim ExcelSheetX As Excel.Worksheet
Dim a(1 To 3) As Single
Dim strFormat As Variant
......
【函数】
GetFileVersionInfo
【操作系统】
Win9X:Yes
WinNT:Yes
【声明】
GetFileVersionInfo Lib "version.dll" Alias "GetFileVersionInfoA" &n ......
VB与Matlab混合编程有多种方式,这里讨论Matlab将M文件编译成com组件共VB调用的方式。
Matlab版本:Matlab 7.7. 0.471 R2008b
VB版本:VB 6.0 & VB 2008
首先写好完成某个功能的m文件,比如在m文件中写入如下函数
function [returns,stderr]=GetReturns(prices)
returns=price2ret(prices)&nbs ......