用vb做一个画图板，要求要能画，直线，曲线，矩形，圆。能调画笔的粗细，还有用滚轮调色。求解答啊！

VB6 画图源码 可实现功能 线 圆 矩形 图形移动 颜色 线宽更改 大小更改

用VB做的一个简单windows画图板，具有画图板的基本功
http://www.pudn.com/downloads168/sourcecode/others/detail776118.html

Dim t As Byte, s As Byte, c As Byte

Private Sub Command1_Click()
t = 1
If Form1.ForeColor = Form1.BackColor Then ForeColor = QBColor(c)
If Form1.DrawWidth = 12 Then Form1.DrawWidth = s
End Sub

Private Sub Command2_Click()
Form1.DrawWidth = 12
t = 2
End Sub

Private Sub Command3_Click()
Cls
Form1.ForeColor = vbBlack
Form1.DrawWidth = 1
t = 1
End Sub

Private Sub Form_Load()
Dim i%
For i = 0 To 15
Picture1(i).BackColor = QBColor(i)
Next i
Form1.ForeColor = vbBlack
t = 1
End Sub

Private Sub Form_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
CurrentX = X: CurrentY = Y
End Sub

Private Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)

If Button = 1 And t = 1 Then Line -(X, Y)
If Button = 1 And t = 2 Then Form1.ForeColor = Form1.BackColor: Form1.MousePointer = 4: Line -(X, Y)
End Sub

Private Sub Picture1_Click(Index As Integer)
Form1.ForeColor = Picture1(Index).BackColor
c = Index
End Sub

Private Sub Picture2_Click()
Form1.DrawWidth = 1: s = 1
End Sub

Private Sub Picture3_Click()
Form1.DrawWidth = 2: s = 2
End Sub

Private Sub Picture4_Click()
Form1.DrawWidth = 4: s = 4
End Sub

Private Sub Picture5_Click()
Form1.DrawWidth = 8: s = 8
End Sub