VB.net中如何畫(huà)圖？

VB.net與VB不同。

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VB.net已經(jīng)有專(zhuān)門(mén)繪圖的類(lèi)。

可以定義筆刷然后用Drawing類(lèi)中的方法繪制。

Private Sub DrawEllipse()

Dim myPen As New System.Drawing.Pen(System.Drawing.Color.Red)

Dim formGraphics as System.Drawing.Graphics

formGraphics = Me.CreateGraphics()

formGraphics.DrawEllipse(myPen, New Rectangle(0,0,200,300))

myPen.Dispose()

formGraphics.Dispose()

End Sub

Private Sub DrawRectangle()

Dim myPen As New System.Drawing.Pen(System.Drawing.Color.Red)

Dim formGraphics as System.Drawing.Graphics

formGraphics = Me.CreateGraphics()

formGraphics.DrawRectangle(myPen, New Rectangle(0,0,200,300))

myPen.Dispose()

formGraphics.Dispose()

End Sub

vb.net怎么在窗體上繪制文字？

你可以在窗體上放一個(gè)lable控件，取名叫l(wèi)able1，

那么實(shí)現(xiàn)方式就是：

private

sub

form_load()

lable1.text="今天天氣很好";

end

sub

你可以試試

用VB.NET繪制GDI圖形

下面的例子通過(guò)重載Form 窗體的OnPaint()方法繪制GDI圖形Protected Overrides Sub onpaint(ByVal e As System Windows Forms PaintEventArgs)注釋 /////////////繪制任意直線(xiàn)Dim g As Graphics = e GraphicsDim mypen As Pen = New Pen(Color Red )g DrawLine(mypen )注釋 /////////////繪制矩形(任意直線(xiàn)構(gòu)成的封閉圖形)Dim point As PointF = New PointF( F F)Dim point As PointF = New PointF( F F)Dim point As PointF = New PointF( F F)Dim point As PointF = New PointF( F F)Dim curvepoints As PointF() = {point point point point }g DrawPolygon(New Pen(Color Blue ) curvepoints)注釋 ////////////文本表示Dim FFamily As FontFamily = New FontFamily( Arial )Dim font As Font = New Font(FFamily FontStyle Bold FontStyle Italic GraphicsUnit Pixel)Dim text As String = I love you! Dim solidbrush As SolidBrush = New SolidBrush(Color Red)Dim pr As PointF = New PointF( )e Graphics DrawString(text font solidbrush pr)注釋 ////////////平面繪制Dim rec As RectangleF = New RectangleF( )g DrawPie(mypen rec )注釋 ///////////封閉圖形 應(yīng)該是個(gè)圓g DrawClosedCurve(mypen curvepoints Drawing Drawing D FillMode Alternate)注釋 ///////////大家自己試試看吧g DrawArc(mypen )g DrawCurve(mypen curvepoints)g DrawBezier(mypen )g DrawBeziers(mypen curvepoints)注釋 //////////這可是一個(gè)圓Dim rec As RectangleF = New RectangleF( )g DrawEllipse(mypen rec )注釋 //////////這是一個(gè)橢圓Dim rec As RectangleF = New RectangleF( )g DrawEllipse(mypen rec )End Sub 這些是我自己試驗(yàn)出來(lái)的 當(dāng)然了 還有好多 我只是開(kāi)了一個(gè)頭 大家要是發(fā)現(xiàn)什么好東東 別忘了通知一下 ） lishixinzhi/Article/program/net/201311/11800