VC下画图要用win32 GDI API VB下呢？

vb如何调用Illustrator（此前Illustrator未启动）？

请教一下：我用vb写了一个调用Illustrator的测试程序，代码很简单：Private Sub Command1_Click()
Dim app As New Illustrator.Application
Dim doc As Illustrator.Document
Dim thislayer As Illustrator.Layer ......

关于VB中的MDI子窗体不能以模式窗体显示

Private Sub cmdModify_Click()
Dim iRet As Integer
If dltUser.Text = "" Then
MsgBox "请选择要修改的用户！", vbOKOnly ......

VB 属性的使用无效

Private Sub DataList1_Click()
If DataList1.Text = "" Then
Lbl_EmpId = ""
Lbl_EmpName = ""
Lbl_Birth = ""
Lbl_Sex = ""
Lbl_Political_ ......

vb中可选参数的问题

function multi(a as integer,b as integer,optional third)
dim n as integer
n = a * b
if not ismissing (third) then
n = n * thid
end if
multi = n
end fu ......

vb与access数据更新的问题

一个程序，两个窗口，一个用来更改access表数据（Form1）,另一个窗口有个combo1用来显示数据(Form2)。form2有一个按钮(command1)用来打开form1。现在我先打开form2，combo1读取出数据，点击command1打开form1,更改数 ......