gdi programming with c sharp phần 10 ppsx

... properties: ClipRectangle and Graphics.ClipRectangle indicates the rectangle in which to paint, and the Graphics property indicates the Graphics object associated with the paint event of a particular control ... something with hdc1 g1.ReleaseHdc(hdc1); g2 = Graphics.FromImage(curBitmap); IntPtr hdc1 = g1.GetHdc(); IntPtr hdc2 = g2.GetHdc(); BitBlt(hdc2, 0, 0, this.ClientRectangle.Width,...

Ngày tải lên: 12/08/2014, 19:20

... order with Append private void Second_Click(object sender, System.EventArgs e) { // Create a Graphics object Graphics g = this.CreateGraphics(); g.Clear(this.BackColor); // Create a rectangle ... objects. Listing 10. 18 Using ColorMatrix to translate colors private void TranslationMenu_Click(object sender, System.EventArgs e) { // Create a Graphics object Graphics g = this.CreateG...

Ngày tải lên: 12/08/2014, 19:20

... an object on a device, first an application needs to get a handle to the device context (HDC), which is used by GDI to send information to the device. In GDI+ , the concept of device context ... SUMMARY Chapter 3. The Graphics Class Section 3.1. Graphics Class Properties Section 3.2. Graphics Class Methods Section 3.3. The GDI+ Painter Application Section 3.4. Drawing a Pie C...

Ngày tải lên: 12/08/2014, 19:20

... rectangle. Intersect Replaces a rectangle with the intersection of itself and another rectangle. IntersectsWith Determines if a specified rectangle intersects with rect. Offset Adjusts the location of a specified ... Point objects. You can test this code on a button or a menu click event handler. Listing 2.9 Creating RectangleF objects // Create a Graphics object Graphics g = this.Create...

Ngày tải lên: 12/08/2014, 19:20

... (rect, startColor, endColor, mode); } // Gamma correction check box is checked if(checkBox1.Checked) { lgBrush.GammaCorrection = true; } // Fill rectangle g.FillRectangle(lgBrush, rect); ... this class. Alternatively, an application can refer to the HatchBrush class as System.Drawing.Drawing2D.HatchBrush. public HatchBrush(HatchStyle, Color); public HatchBrush(HatchStyle, Color, Colo...

Ngày tải lên: 12/08/2014, 19:20

... color AppWorkspace Multiple-document interface (MDI) workspace background color Control Control background color ControlDark 3D control shadow color ControlDarkDark 3D control dark shadow color ControlLight 3D ... active caption, and control dark system colors, respectively. textBox1.BackColor = SystemColors.InactiveBorder; radioButton1.BackColor = SystemColors.ActiveCaption; button1.BackColo...

Ngày tải lên: 12/08/2014, 19:20

... TranslateClip to translate a region // Create a Graphics object Graphics g = this.CreateGraphics(); g.Clear(this.BackColor); // Create a RectangleF rectangle RectangleF rect1 = new RectangleF(20.0f, ... item click event handlers private void CircleMenu_Click(object sender, System.EventArgs e) { // Create a rectangle Rectangle rect = new Rectangle(50, 0, 300, 300); // Create a Shape objec...

Ngày tải lên: 12/08/2014, 19:20

... colorMap1.OldColor = Color.Red; colorMap1.NewColor = Color.Green; colorMap2.OldColor = Color.Yellow; colorMap2.NewColor = Color.Navy; colorMap3.OldColor = Color.Blue; colorMap3.NewColor = Color.Aqua; ... System.EventArgs e) { // Create a Graphics object Graphics g = this.CreateGraphics(); g.Clear(this.BackColor); // Create two colors Color lClr = Color.FromArgb(245,0,0); Color uCl...

Ngày tải lên: 12/08/2014, 19:20

... GammaCorrectionMenu_Click( object sender, System.EventArgs e) { Graphics g = this.CreateGraphics(); g.Clear(this.BackColor); // Create a rectangle Rectangle rect = new Rectangle(20, 20, 100 , ... SetBlendTriangularShapeMenu_Click(object sender, System.EventArgs e) { Graphics g = this.CreateGraphics(); g.Clear(this.BackColor); // Create a rectangle Rectangle rect = new Rectangle(20...

Ngày tải lên: 12/08/2014, 19:20

... HatchBrush(HatchStyle.Cross, Color.Red, Color.Yellow); // Create a Bitmap object Bitmap curBitmap = new Bitmap(200, 200); // Create a Graphics object from Bitmap Graphics g = Graphics.FromImage(curBitmap); ... members MemberDescription AutomaticFeed Automatically fed paper Cassette A paper cassette Custom A printer-specific paper source Envelope An envelope FormSource The printer's...

Ngày tải lên: 12/08/2014, 19:20