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标题:请问用VB6如何绘制着色的三角形
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gongjh001
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请问用VB6如何绘制着色的三角形
请问用VB6如何绘制着色的三角形,已知三角形三个顶点坐标,绘制一个三角形,三角形内部填充指定颜色。多谢!
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2011-10-08 10:51
睿翼
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Private Declare Function ExtFloodFill Lib "gdi32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, ByVal crColor As Long, ByVal wFillType As Long) As Long

Private Sub Picture1_Click()
With Picture1
.FillColor = vbRed
.FillStyle = 0
.ForeColor = vbBlue
Picture1.Line (Picture1.ScaleLeft, Picture1.ScaleTop)-(Picture1.ScaleLeft + Picture1.ScaleWidth, Picture1.ScaleTop + Picture1.ScaleHeight / 2)
Picture1.Line -(Picture1.ScaleLeft, Picture1.ScaleTop + Picture1.ScaleHeight)
Picture1.Line -(Picture1.ScaleLeft, Picture1.ScaleTop)
End With
Call ExtFloodFill(Picture1.hdc, Picture1.ScaleLeft + 1, Picture1.ScaleTop + 1, vbBlue, 0)
End Sub
2011-10-08 17:43
睿翼
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Private Type POINTAPI
        x As Long
        y As Long
End Type
Private Declare Function CreatePen Lib "gdi32" (ByVal nPenStyle As Long, ByVal nWidth As Long, ByVal crColor As Long) As Long
Private Declare Function SelectObject Lib "gdi32" (ByVal hdc As Long, ByVal hObject As Long) As Long
Private Declare Function CreateSolidBrush Lib "gdi32" (ByVal crColor As Long) As Long
Private Declare Function Polygon Lib "gdi32" (ByVal hdc As Long, lpPoint As POINTAPI, ByVal nCount As Long) As Long
Private Declare Function DeleteObject Lib "gdi32" (ByVal hObject As Long) As Long

Private Sub Form_Click()
Dim pt(2) As POINTAPI
pt(0).x = 200: pt(0).y = 200
pt(1).x = 300: pt(1).y = 300
pt(2).x = 100: pt(2).y = 300

hpen = CreatePen(0, 1, 边框颜色)  '创建画笔
SelectObject Me.hdc, hpen         '使用画笔
hbrush = CreateSolidBrush(填充颜色)  '创建笔刷
SelectObject Me.hdc, hbrush   '使用笔刷
Polygon Me.hdc, pt(0), 3  '绘制并填充多边形
DeleteObject hpen      '删除画笔和笔刷
DeleteObject hbrush
End Sub
2011-10-09 23:21
快速回复:请问用VB6如何绘制着色的三角形
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