UserActionMouseMove Event

Summary
Optional delegate method for additional processing.
Syntax
C#
C++/CLI
public event EventHandler<MedicalViewerMouseEventArgs> UserActionMouseMove 
            public: 
event EventHandler<MedicalViewerMouseEventArgs^>^ UserActionMouseMove 
Event Data

The event handler receives an argument of type MedicalViewerMouseEventArgs containing data related to this event. The following MedicalViewerMouseEventArgs properties provide information specific to this event.

PropertyDescription
ActionID Gets or sets the ID of the action that raised the event.
Button (Inherited from System.Windows.Forms.MouseEventArgs)Gets which mouse button was pressed.
Clicks (Inherited from System.Windows.Forms.MouseEventArgs)Gets the number of times the mouse button was pressed and released.
Delta (Inherited from System.Windows.Forms.MouseEventArgs)Gets a signed count of the number of detents the mouse wheel has rotated, multiplied by the WHEEL_DELTA constant. A detent is one notch of the mouse wheel.
Images Gets or sets the array of Leadtools.RasterImage objects that contain the images to be updated.
Location (Inherited from System.Windows.Forms.MouseEventArgs)Gets the location of the mouse during the generating mouse event.
X (Inherited from System.Windows.Forms.MouseEventArgs)Gets the x-coordinate of the mouse during the generating mouse event.
Y (Inherited from System.Windows.Forms.MouseEventArgs)Gets the y-coordinate of the mouse during the generating mouse event.
Example
C#
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.MedicalViewer; 
 
public void MedicalViewerEventsExample() 
{ 
   MainForm3 form = new MainForm3(); 
   form.ShowDialog(); 
} 
 
// MainForm1 will be the owner of the medical viewer control. 
class MainForm3 : Form 
{ 
   private MedicalViewer _medicalViewer; 
   private bool _mouseDown; 
 
   void _medicalViewer_UserActionMouseMove(object sender, MedicalViewerMouseEventArgs e) 
   { 
      // Increase the gamma of the image as the user drags the mouse. 
      if ((e.ActionID == 101) && _mouseDown) 
      { 
         ((MedicalViewerCell)sender).Image.PaintGamma += 1; 
         ((MedicalViewerCell)sender).Invalidate(); 
      } 
   } 
 
   void _medicalViewer_UserActionMouseUp(object sender, MedicalViewerMouseEventArgs e) 
   { 
      _mouseDown = false; 
   } 
 
   void _medicalViewer_UserActionMouseDown(object sender, MedicalViewerMouseEventArgs e) 
   { 
      _mouseDown = true; 
   } 
 
   void _medicalViewer_UserActionKeyDown(object sender, MedicalViewerKeyEventArgs e) 
   { 
      if (((MedicalViewerCell)sender).Image.PaintGamma > 1) 
         ((MedicalViewerCell)sender).Image.PaintGamma -= 1; 
   } 
 
   void _medicalViewer_UserActionKeyUp(object sender, MedicalViewerKeyEventArgs e) 
   { 
      ((MedicalViewerCell)sender).Invalidate(); 
   } 
 
   void _medicalViewer_CustomPaint(object sender, MedicalViewerPaintEventArgs e) 
   { 
      // draw red ellipse around the first frame of the first cell. 
      if ((e.CellIndex == 0) && (e.SubCellIndex == 0)) 
         e.Graphics.DrawEllipse(Pens.Red, e.ClipRectangle); 
   } 
 
   void _medicalViewer_UserTag(object sender, MedicalViewerUserTagEventArgs e) 
   { 
      // draw red string at the bottom right edge of the first cell. 
      if (e.CellIndex == 0) 
         e.Graphics.DrawString("Owner Draw", new Font(FontFamily.GenericSerif, 15), Brushes.Red, new PointF(e.ClipRectangle.Left, e.ClipRectangle.Top)); 
   } 
 
   public MainForm3() 
   { 
      RasterCodecs _codecs = new RasterCodecs(); 
      RasterImage _image; 
 
      // Create the medical viewer and adjust some properties. 
      _medicalViewer = new MedicalViewer(); 
      _medicalViewer.Rows = 1; 
      _medicalViewer.Columns = 2; 
      _medicalViewer.Location = new Point(0, 0); 
      _medicalViewer.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom); 
 
      // Load an image and then add it to the control. 
      _image = _codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "image3.dcm")); 
      MedicalViewerCell cell = new MedicalViewerCell(_image, true); 
      cell.AddAction((MedicalViewerActionType)101); 
      cell.SetAction((MedicalViewerActionType)101, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active); 
 
      cell.SetActionKeys((MedicalViewerActionType)101, new MedicalViewerKeys(Keys.Up, Keys.Down, Keys.Left, Keys.Right, MedicalViewerModifiers.None)); 
 
      cell.UserTag += new EventHandler<MedicalViewerUserTagEventArgs>(_medicalViewer_UserTag); 
      cell.CustomPaint += new EventHandler<MedicalViewerPaintEventArgs>(_medicalViewer_CustomPaint); 
      cell.UserActionMouseDown += new EventHandler<MedicalViewerMouseEventArgs>(_medicalViewer_UserActionMouseDown); 
      cell.UserActionMouseUp += new EventHandler<MedicalViewerMouseEventArgs>(_medicalViewer_UserActionMouseUp); 
      cell.UserActionMouseMove += new EventHandler<MedicalViewerMouseEventArgs>(_medicalViewer_UserActionMouseMove); 
      cell.UserActionKeyUp += new EventHandler<MedicalViewerKeyEventArgs>(_medicalViewer_UserActionKeyUp); 
      cell.UserActionKeyDown += new EventHandler<MedicalViewerKeyEventArgs>(_medicalViewer_UserActionKeyDown); 
 
      _medicalViewer.Cells.Add(cell); 
 
      // adjust some properties of the cell and add some tags. 
      cell.SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448"); 
      cell.SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame); 
      cell.SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale); 
      cell.SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData); 
      cell.SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView); 
      cell.SetTag(1, MedicalViewerTagAlignment.TopRight, MedicalViewerTagType.UserData, "Good, Guy"); 
      cell.SetTag(2, MedicalViewerTagAlignment.TopRight, MedicalViewerTagType.UserData, "PID 125-98-445"); 
      cell.SetTag(3, MedicalViewerTagAlignment.TopRight, MedicalViewerTagType.UserData, "DOB 08/02/1929"); 
      cell.SetTag(5, MedicalViewerTagAlignment.TopRight, MedicalViewerTagType.UserData, "03/16/1999"); 
      cell.SetTag(0, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.RulerUnit); 
      cell.SetTag(0, MedicalViewerTagAlignment.BottomRight, MedicalViewerTagType.OwnerDraw); 
 
      Controls.Add(_medicalViewer); 
      _medicalViewer.Dock = DockStyle.Fill; 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
} 
Requirements

Target Platforms

Help Version 23.0.2024.2.29
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Leadtools.MedicalViewer Assembly

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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.