Csharp/C Sharp/GUI Windows Form/Track Bar — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
(нет различий)
|
Текущая версия на 14:33, 26 мая 2010
Use TrackBar to control label color
<source lang="csharp">
using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; public class TrackForm : System.Windows.Forms.Form { private System.Windows.Forms.Label label4; private System.Windows.Forms.Label label2; private System.Windows.Forms.TrackBar blueTrackBar; private System.Windows.Forms.Label label3; private System.Windows.Forms.TrackBar greenTrackBar; private System.Windows.Forms.TrackBar redTrackBar; private System.Windows.Forms.Label label1; private System.Windows.Forms.Panel panel1; private System.Windows.Forms.Label lblCurrColor; private System.Windows.Forms.PictureBox colorBox; public TrackForm() { InitializeComponent(); CenterToScreen(); redTrackBar.Value = 0; greenTrackBar.Value = 0; blueTrackBar.Value = 0; UpdateColor(); } private void InitializeComponent() { this.label4 = new System.Windows.Forms.Label (); this.label1 = new System.Windows.Forms.Label (); this.label3 = new System.Windows.Forms.Label (); this.label2 = new System.Windows.Forms.Label (); this.panel1 = new System.Windows.Forms.Panel (); this.redTrackBar = new System.Windows.Forms.TrackBar (); this.greenTrackBar = new System.Windows.Forms.TrackBar (); this.colorBox = new System.Windows.Forms.PictureBox (); this.lblCurrColor = new System.Windows.Forms.Label (); this.blueTrackBar = new System.Windows.Forms.TrackBar (); redTrackBar.BeginInit (); greenTrackBar.BeginInit (); blueTrackBar.BeginInit (); label4.Location = new System.Drawing.Point (16, 88); label4.Text = "Pick your slider here:"; label4.Size = new System.Drawing.Size (240, 32); label4.Font = new System.Drawing.Font ("Microsoft Sans Serif", 15); label4.TabIndex = 9; label1.Location = new System.Drawing.Point (24, 16); label1.Text = "Red:"; label1.Size = new System.Drawing.Size (88, 32); label1.Font = new System.Drawing.Font ("Arial", 15); label1.TabIndex = 4; label3.Location = new System.Drawing.Point (24, 104); label3.Text = "Blue:"; label3.Size = new System.Drawing.Size (88, 32); label3.Font = new System.Drawing.Font ("Arial", 15); label3.TabIndex = 6; label2.Location = new System.Drawing.Point (24, 64); label2.Text = "Green:"; label2.Size = new System.Drawing.Size (88, 32); label2.Font = new System.Drawing.Font ("Arial", 15); label2.TabIndex = 5; panel1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle; panel1.Location = new System.Drawing.Point (16, 120); panel1.Size = new System.Drawing.Size (384, 188); panel1.TabIndex = 8; panel1.AutoScroll = true; redTrackBar.TickFrequency = 5; redTrackBar.Location = new System.Drawing.Point (120, 16); redTrackBar.TabIndex = 2; redTrackBar.TickStyle = System.Windows.Forms.TickStyle.TopLeft; redTrackBar.Maximum = 255; redTrackBar.Size = new System.Drawing.Size (232, 42); redTrackBar.Scroll += new System.EventHandler (this.redTrackBar_Scroll); greenTrackBar.TickFrequency = 5; greenTrackBar.Location = new System.Drawing.Point (120, 56); greenTrackBar.TabIndex = 3; greenTrackBar.TickStyle = System.Windows.Forms.TickStyle.TopLeft; greenTrackBar.Maximum = 255; greenTrackBar.Size = new System.Drawing.Size (240, 42); greenTrackBar.Scroll += new System.EventHandler (this.greenTrackBar_Scroll); colorBox.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D; colorBox.BackColor = System.Drawing.Color.Blue; colorBox.Location = new System.Drawing.Point (16, 16); colorBox.Size = new System.Drawing.Size (384, 56); colorBox.TabIndex = 0; colorBox.TabStop = false; lblCurrColor.Location = new System.Drawing.Point (16, 324); lblCurrColor.Text = "label4"; lblCurrColor.Size = new System.Drawing.Size (392, 40); lblCurrColor.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle; lblCurrColor.Font = new System.Drawing.Font ("Microsoft Sans Serif", 14); lblCurrColor.TabIndex = 7; blueTrackBar.TickFrequency = 5; blueTrackBar.Location = new System.Drawing.Point (120, 96); blueTrackBar.TabIndex = 1; blueTrackBar.TickStyle = System.Windows.Forms.TickStyle.TopLeft; blueTrackBar.Maximum = 255; blueTrackBar.Size = new System.Drawing.Size (240, 42); blueTrackBar.Scroll += new System.EventHandler (this.blueTrackBar_Scroll); this.Text = "Color Form"; this.AutoScaleBaseSize = new System.Drawing.Size (5, 13); this.ClientSize = new System.Drawing.Size (424, 385); panel1.Controls.Add (this.label2); panel1.Controls.Add (this.blueTrackBar); panel1.Controls.Add (this.label3); panel1.Controls.Add (this.greenTrackBar); panel1.Controls.Add (this.redTrackBar); panel1.Controls.Add (this.label1); this.Controls.Add (this.label4); this.Controls.Add (this.panel1); this.Controls.Add (this.lblCurrColor); this.Controls.Add (this.colorBox); redTrackBar.EndInit (); greenTrackBar.EndInit (); blueTrackBar.EndInit (); } static void Main() { Application.Run(new TrackForm()); } protected void greenTrackBar_Scroll (object sender, System.EventArgs e) { UpdateColor(); } protected void redTrackBar_Scroll (object sender, System.EventArgs e) { UpdateColor(); } protected void blueTrackBar_Scroll (object sender, System.EventArgs e) { UpdateColor(); } private void UpdateColor() { Color c = Color.FromArgb(redTrackBar.Value, greenTrackBar.Value, blueTrackBar.Value); colorBox.BackColor = c; lblCurrColor.Text = "Current color is: " + "(" + redTrackBar.Value + ", " + greenTrackBar.Value + " ," + blueTrackBar.Value + ")"; } }
</source>