c#自定義控制項三vista按鈕
效果圖：
vista和win7作業系統的按鈕非常華麗，用c#gdi+去實現也挺方便的，這個是參考網上原始碼修改過來的，個人覺得非常有學習價值。
第一步：新增使用者控制項，命名為
myvistabutton
第三步：重寫paint事件，為了增強效果，還可以重寫滑鼠移入移出等事件。
貼出核心**：
#region方法
private
graphicspath roundrect(rectanglef r, float r1, float r2, float r3, float r4)
private
stringformat stringformatalignment(contentalignment textalign)
switch (textalign)
return sf;
}///
///繪製外部邊框
//////
private
void drawouterstroke(graphics g)
rectangle r = this.clientrectangle;
r.width -= 1; r.height -= 1;
using (graphicspath rr = roundrect(r, cornerradius, cornerradius, cornerradius, cornerradius)) }}
//////繪製內部邊框
//////
private
void drawinnerstroke(graphics g)
rectangle r = this.clientrectangle;
r.x++; r.y++;
r.width -= 3; r.height -= 3;
using (graphicspath rr = roundrect(r, cornerradius, cornerradius, cornerradius, cornerradius)) }}
//////繪製背景
//////
private
void drawbackground(graphics g)
int alpha = (mbuttonstate == state.pressed) ? 204 : 127;
rectangle r = this.clientrectangle;
r.width--; r.height--;
using (graphicspath rr = roundrect(r, cornerradius, cornerradius, cornerradius, cornerradius))
setclip(g);
if (this.backimage != null)
g.resetclip();
using (solidbrush sb = new
solidbrush(color.fromargb(alpha, this.buttoncolor))) }}
//////繪製高亮顏色
//////
private
void drawhighlight(graphics g)
int alpha = (mbuttonstate == state.pressed) ? 60 : 150;
rectangle rect = new
rectangle(0, 0, this.width, this.height / 2);
using (graphicspath r = roundrect(rect, cornerradius, cornerradius, 0, 0)) }}
//////繪製滑鼠移入顏色
//////
private
void drawglow(graphics g)
setclip(g);
using (graphicspath glow = new
graphicspath())
;g.fillpath(gl, glow);}}
g.resetclip();
}///
///繪製文字
//////
private
void drawtext(graphics g)
//////繪製
//////
private
void drawimage(graphics g)
rectangle r = new
rectangle(8, 8, this.imagesize.width, this.imagesize.height);
switch (this.imagealign)
g.drawimage(this.image, r);
}private
void setclip(graphics g)
}#endregion
重寫paint事件：
private
void myvistabutton_paint(object sender, painteventargs e)
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