暂停按钮 始终灰色 不可用 状态!????
代码:
Dim a As Boolean
Private Sub Command1_Click()
a = 1
Timer1.Enabled = True
Command1.Enabled = False
Command2.Enabled = True
Command3.Enabled = False
End Sub
Private Sub Command2_Click()
If Command2.Caption = "暂停" Then
Timer1.Enabled = False
Command1.Enabled = False
Command2.Caption = "继续"
Command3.Enabled = False
Else
Timer1.Enabled = True
Command1.Enabled = False
Command2.Caption = "暂停"
Command3.Enabled = False
End If
End Sub
Private Sub Command3_Click()
a = 0
Timer1.Enabled = True
Command1.Enabled = False
Command2.Enabled = True
Command3.Enabled = False
End Sub
Private Sub Form_Load()
Timer1.Interval = 200
Timer1.Enabled = False
End Sub
Private Sub Timer1_Timer()
Picture1.Width = Picture1.Width + IIf(a, -100, 100)
Picture2.Width = Picture2.Width + IIf(a, -100, 100)
Picture2.Left = Picture2.Left + IIf(a, 100, -100)
If Picture1.Width < 100 Then Timer1.Enabled = 0
If Picture1.Width + Picture1.Left > Picture2.Left Then Timer1.Enabled = 0
Command2.Enabled = False
Command3.Enabled = True
If Picture1.Width + Picture1.Left > Picture2.Left Then Timer1.Enabled = 0
Command2.Enabled = False
Command3.Enabled = True
End Sub


