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作者:窦瑞欣 来源:天极开发 2007年11月11日
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public void SetBackgroundBitmap(Image image, Color transparencyColor) { BackgroundBitmap = new Bitmap(image); Width = BackgroundBitmap.Width; Height = BackgroundBitmap.Height; Region = BitmapToRegion(BackgroundBitmap, transparencyColor); } public Region BitmapToRegion(Bitmap bitmap, Color transparencyColor) { if (bitmap == null) throw new ArgumentNullException("Bitmap", "Bitmap cannot be null!"); int height = bitmap.Height; int width = bitmap.Width; GraphicsPath path = new GraphicsPath(); for (int j = 0; j < height; j++) for (int i = 0; i < width; i++) { if (bitmap.GetPixel(i, j) == transparencyColor) continue; int x0 = i; while ((i < width) && (bitmap.GetPixel(i, j) != transparencyColor)) i++; path.AddRectangle(new Rectangle(x0, j, i - x0, 1)); } Region region = new Region(path); path.Dispose(); return region; } |
protected override void OnPaintBackground(PaintEventArgs e) { Graphics grfx = e.Graphics; grfx.PageUnit = GraphicsUnit.Pixel; Graphics offScreenGraphics; Bitmap offscreenBitmap; offscreenBitmap = new Bitmap(BackgroundBitmap.Width, BackgroundBitmap.Height); offScreenGraphics = Graphics.FromImage(offscreenBitmap); if (BackgroundBitmap != null) { offScreenGraphics.DrawImage(BackgroundBitmap, 0, 0, BackgroundBitmap.Width, BackgroundBitmap.Height); } DrawText(offScreenGraphics); grfx.DrawImage(offscreenBitmap, 0, 0); } |
private void TaskbarForm_MouseDown(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { if (TitlebarRectangle.Contains(e.Location)) //单击标题栏时拖动 { ReleaseCapture(); //释放鼠标捕捉 SendMessage(Handle, WM_NCLBUTTONDOWN, HT_CAPTION, 0); //发送左键点击的消息至该窗体(标题栏) } if (CloseBtnRectangle.Contains(e.Location)) //单击Close按钮关闭 { this.Hide(); currentTop = 1; } if (ContentRectangle.Contains(e.Location )) //单击内容区域 { System.Diagnostics.Process.Start("http://www.Rithia.com"); } } } |
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