代码如下:
Option Explicit
Const Pi = 3.14
Private Sub CommandRototate_Click()
Dim x As Integer, y As Integer
Dim X1 As Integer, Y1 As Integer
Dim X2 As Double, Y2 As Double
Dim X3 As Double, Y3 As Double
Dim JiaoDu As Double
Dim HuDu As Double
JiaoDu = 45 '角度可自己设定
HuDu = JiaoDu * Pi / 180 '弧度
PicSource.ScaleMode = vbPixels
PicTarget.ScaleMode = vbPixels
For x = 0 To PicTarget.ScaleWidth
X1 = x - PicTarget.ScaleWidth \ 2
For y = 0 To PicTarget.ScaleHeight
Y1 = y - PicTarget.ScaleHeight \ 2
X2 = X1 * Cos(-HuDu) + Y1 * Sin(-HuDu)
Y2 = Y1 * Cos(-HuDu) - X1 * Sin(-HuDu)
X3 = X2 + PicSource.ScaleWidth \ 2
Y3 = Y2 + PicSource.ScaleHeight \ 2
If X3 > 0 And X3 < PicSource.ScaleWidth - 1 And Y3 > 0 And Y3 <
PicSource.ScaleHeight - 1 Then
PicTarget.PSet (x, y), PicSource.Point(X3, Y3)
End If
Next y
Next x
End Sub