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[多媒体] 画折线出问题了?高手指点一下!

画折线出问题了?高手指点一下!

Dim x1, y1, x2, y2, left_c As Integer

Private Sub Form_Load()
left_c = 0
End Sub


Private Sub Picture1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
If Button = 1 Then
left_c = 0
Else
If left_c = 0 Then
x1 = X
y1 = Y
left_c = 1
Else
x2 = X
y2 = Y
Picture1.Line (x1, y1)-(x2, y2)
End If
End If
End Sub

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运行可以但是没显示

在form上建立一个picture控件,在这个控件里面花折线,,,,,谁能指点一下?

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将Picture1的AutoRedraw属性设置为True
换个头像,看见广告就眼红,直接封ID。

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