在线等！ 简单问题 请大家快些帮忙

[midfly]

就是 帮忙写点代码

一个 text 当他在其中输入的是数字时 就执行下面的语句
如果是非数字的 就用msgbox错误提示 让他改在里面输入数字
不知道这个代码该怎么用 ？
还有一个就是 怎么更改应用程序窗口的图标？ 我想把他换成别的ICO的图标
而不是默认的那个

我的QQ：13989696 希望 朋友们加我 呵呵 我的问题很多

[ostrich3000]

If IsNumeric(Text1.Text) Then
'输入的是数字的程序
Else
MsgBox "请输入数字", , "title"
End If
'添加窗体icon
Me.Icon = LoadPicture("c:\a.ico")

[midfly]

还有一个问题 就是我想要 我这个程序的窗口在所有程序的最上边

该怎么设置？ 分我一会在加 希望大家帮帮忙

[agamem]

Private Declare Function SetWindowPos Lib "user32" (ByVal hWnd As Long, ByVal hWndInsertAfter As Long, ByVal X As Long, ByVal Y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long

Private Const LWA_COLORKEY = &H1
Private Const HWND_BOTTOM = 1
Private Const HWND_NOTOPMOST = -2
Private Const HWND_TOP = 0
Private Const HWND_TOPMOST = -1

Private Const SWP_FRAMECHANGED = &H20 ' The frame changed: send WM_NCCALCSIZE
Private Const SWP_DRAWFRAME = SWP_FRAMECHANGED
Private Const SWP_HIDEWINDOW = &H80
Private Const SWP_NOACTIVATE = &H10
Private Const SWP_NOCOPYBITS = &H100
Private Const SWP_NOMOVE = &H2
Private Const SWP_NOOWNERZORDER = &H200 ' Don't do owner Z ordering
Private Const SWP_NOREDRAW = &H8
Private Const SWP_NOREPOSITION = SWP_NOOWNERZORDER
Private Const SWP_NOSIZE = &H1
Private Const SWP_NOZORDER = &H4
Private Const SWP_SHOWWINDOW = &H40
SetWindowPos Me.hWnd, HWND_TOPMOST, &O0, &O0, &O0, &O0, SWP_NOSIZE + SWP_NOMOVE

[midfly]

If IsNumeric(Text1.Text) Then
'输入的是数字的程序
Else
MsgBox "请输入数字", , "title"
End If
'添加窗体icon
Me.Icon = LoadPicture("c:\a.ico")

这个代码 那如果 我要同时检查3个text 该怎么办？

[leeht]

Private Sub Text1_KeyPress(KeyAscii As Integer)

If KeyAscii < 48 Or KeyAscii > 57 Then
msgbox "只能输入数字，请重新输入"
KeyAscii = 0
End If

End Sub

[谢紫枫]

同时检查3个text

If IsNumeric(Text1.Text) and IsNumeric(Text2.Text) and IsNumeric(Text3.Text)Then

或 leeht(Lee)的做法Text1，Text2，Text3都注明