vb.net编程练习题 vb编程设计例题100例视频

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VB.NET想用GetWindowRECT获取某窗口的坐标，但测试结果是L,T,R,B显示都是0,0,0,0

很简单，原因有二。第一，VB里long是32位，但是VB.NET里是64位，Dim ksWND As Integer才对。第二，VB在API里默认传址，而VB.NET默认传值，所以API里要添加Private Declare Function GetWindowRect Lib "user32" (ByVal hwnd As Long,添加"ByRef" lpRect As RECT) As Integer

Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long

Private Declare Function GetWindowRect Lib "user32" (ByVal hwnd As Long,byref lpRect As RECT) As Integer

Private Structure RECT

Dim Left As Integer

Dim Top As Integer

Dim Right As Integer

Dim Bottom As Integer

End Structure

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

Dim ksWND As integer

Dim ksTitle As String

Dim winS As RECT

If TextBox1.Text "" Then

ksTitle = TextBox1.Text

ksWND = FindWindow(vbNullString, ksTitle)

GetWindowRect(ksWND, winS)

MsgBox("左上角坐标(" winS.Left "," winS.Top ")" vbCrLf "右下角坐标(" winS.Right "," winS.Bottom ")" vbCrLf "窗口高" winS.Bottom - winS.Top "窗口宽" winS.Right - winS.Left)

Else

MsgBox("请填写窗口名称")

End If

End Sub

想把一个老师编的做题练习的软件里面的题库弄出来，貌似是用VB6.0编写的，要怎么做啊？

这个东西任何一个环境都可以轻松做出来vb.net编程练习题，我给你个思路吧vb.net编程练习题：

他是把题目和答案都放在数据库文件里面vb.net编程练习题，然后读取exeback文件，一条一条地读数据就行了，图片也匹配地加载出来，

这个程序不是用VB写vb.net编程练习题的VB写的程序没有frm、vbw、scc、frx后缀原文件是打不开的。C/C++可以，Delph不行，C#.NET老的版本是可以的，E语言也要源文件，走C一路的程序可以在系统基础上直接打开，VB不做安装包是不行的，再说这么个程序有什么意义，不在于他的编程思想，侧重是测验吧。95%是用C#写的。