C# Forms.HelpEventArgs类代码示例

        protected override void OnHelpRequested(HelpEventArgs hevent)
        {
            // Get the active control
            Control activeControl = HelpUtils.GetActiveControl(this);

            // Figure out the context
            DataConnectionDialogContext context = DataConnectionDialogContext.AddProperty;
            if (activeControl == propertyTextBox)
            {
                context = DataConnectionDialogContext.AddPropertyTextBox;
            }
            if (activeControl == okButton)
            {
                context = DataConnectionDialogContext.AddPropertyOkButton;
            }
            if (activeControl == cancelButton)
            {
                context = DataConnectionDialogContext.AddPropertyCancelButton;
            }

            // Call OnContextHelpRequested
            ContextHelpEventArgs e = new ContextHelpEventArgs(context, hevent.MousePos);
            _mainDialog.OnContextHelpRequested(e);
            hevent.Handled = e.Handled;
            if (!e.Handled)
            {
                base.OnHelpRequested(hevent);
            }
        }

 public void Catch_HelpRequested(object sender, HelpEventArgs hlpevent)
 {
     string message;
     if (_listeMessage.TryGetValue(sender, out message))
     {
         helpToolTip.Show(message, sender as IWin32Window);
     }
 }

 private void ControlHelpRequested(object sender, HelpEventArgs helpEvent)
 {
     if (!SupressHelpRequests && !string.IsNullOrEmpty(Url))
     {
         helpEvent.Handled = true;
         OpenUrl();
     }
 }

 /// <summary>
 /// Dit is de eventhandler voor het functioneren van de tooltips.
 /// </summary>
 /// <param name="sender">Het UI element waarover help wordt opgevraagt.</param>
 /// <param name="hlpevent"></param>
 public void View_HelpRequested(object sender, HelpEventArgs hlpevent)
 {
     Control requestingControl = (Control)sender;
     this.tooltip.ToolTipIcon = ToolTipIcon.Info;
     this.tooltip.ToolTipTitle = requestingControl.Text;
     this.tooltip.UseAnimation = true;
     this.tooltip.Show(requestingControl.Tag.ToString(), requestingControl, 5000);
     hlpevent.Handled = true;
 }

        protected override void OnHelpRequested(HelpEventArgs hevent)
        {
            // Get the active control
            Control activeControl = this;
            ContainerControl containerControl = null;
            while ((containerControl = activeControl as ContainerControl) != null &&
                containerControl != propertyGrid &&
                containerControl.ActiveControl != null)
            {
                activeControl = containerControl.ActiveControl;
            }

            // Figure out the context
            DataConnectionDialogContext context = DataConnectionDialogContext.Advanced;
            if (activeControl == propertyGrid)
            {
                context = DataConnectionDialogContext.AdvancedPropertyGrid;
            }
            if (activeControl == textBox)
            {
                context = DataConnectionDialogContext.AdvancedTextBox;
            }
            if (activeControl == okButton)
            {
                context = DataConnectionDialogContext.AdvancedOkButton;
            }
            if (activeControl == cancelButton)
            {
                context = DataConnectionDialogContext.AdvancedCancelButton;
            }

            // Call OnContextHelpRequested
            ContextHelpEventArgs e = new ContextHelpEventArgs(context, hevent.MousePos);
            _mainDialog.OnContextHelpRequested(e);
            hevent.Handled = e.Handled;
            if (!e.Handled)
            {
                base.OnHelpRequested(hevent);
            }
        }

 private void OnControlHelp(object sender, HelpEventArgs hevent)
 {
     Control ctl = (Control) sender;
     string helpString = this.GetHelpString(ctl);
     string helpKeyword = this.GetHelpKeyword(ctl);
     HelpNavigator helpNavigator = this.GetHelpNavigator(ctl);
     if (this.GetShowHelp(ctl))
     {
         if (((Control.MouseButtons != MouseButtons.None) && (helpString != null)) && (helpString.Length > 0))
         {
             Help.ShowPopup(ctl, helpString, hevent.MousePos);
             hevent.Handled = true;
         }
         if (!hevent.Handled && (this.helpNamespace != null))
         {
             if ((helpKeyword != null) && (helpKeyword.Length > 0))
             {
                 Help.ShowHelp(ctl, this.helpNamespace, helpNavigator, helpKeyword);
                 hevent.Handled = true;
             }
             if (!hevent.Handled)
             {
                 Help.ShowHelp(ctl, this.helpNamespace, helpNavigator);
                 hevent.Handled = true;
             }
         }
         if ((!hevent.Handled && (helpString != null)) && (helpString.Length > 0))
         {
             Help.ShowPopup(ctl, helpString, hevent.MousePos);
             hevent.Handled = true;
         }
         if (!hevent.Handled && (this.helpNamespace != null))
         {
             Help.ShowHelp(ctl, this.helpNamespace);
             hevent.Handled = true;
         }
     }
 }

        private void GetPassword_HelpRequested(object sender, HelpEventArgs hlpevent)
        {
            //Translate the screen coordinates to client coordinates..........
            Point p = this.PointToClient(hlpevent.MousePos);
            Control b = FindControl(this, p);
            if (b != null)
            {
                if (b == tbOldPassword || b == label1)
                {
                    ttHelp.Show("previously set password for sealth mode ", b,5000);
                }
                else if (b == tbPassword || b == label2)
                {
                    ttHelp.Show("Enter new password for sealth mode ", b,5000);
                }
                else if (b == tbConfirmPassowrd || b == label3)
                {
                    ttHelp.Show("Confirm newly entered password by reentering here", b,5000);
                }
            }

            hlpevent.Handled = true;
        }

		// Process a help request on the form.
		protected override void OnHelpRequested(HelpEventArgs e)
				{
					base.OnHelpRequested(e);
					dialog.EmitHelpRequest(e);
				}

        private void btnGetOffsetFromEditor_HelpRequested(object sender, HelpEventArgs hlpevent)
        {
            ToolBarHelpDLG HelpInfo = new ToolBarHelpDLG();

              string fileName = AssemblyDirectory + "/Help/GetOffsetFromEditor.htm";
              HelpInfo.webBrowser1.Url = new Uri(fileName);
              HelpInfo.Location = btnGetOffsetFromEditor.Location;
              HelpInfo.Owner = this;
              HelpInfo.Show();

              hlpevent.Handled = true;
        }

        /// <summary>
        /// Defines the event delegate when help is requested.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="hlpevent"></param>
        private void OnHelpRequested(object sender, HelpEventArgs hlpevent)
        {
            if (String.IsNullOrEmpty(this.helpTopic))
            {
                return;
            }

            this.ShowHelp();
            hlpevent.Handled = true;
        }

 private void Config_HelpRequested(object sender, HelpEventArgs hlpevent)
 {
   IrssHelp.Open(sender);
 }

        /// <include file='doc\HelpProvider.uex' path='docs/doc[@for="HelpProvider.OnControlHelp"]/*' />
        /// <devdoc>
        ///     Handles the help event for any bound controls.
        /// </devdoc>
        /// <internalonly/>
        private void OnControlHelp(object sender, HelpEventArgs hevent) {
            Control ctl = (Control)sender;
            string helpString = GetHelpString(ctl);
            string keyword = GetHelpKeyword(ctl);
            HelpNavigator navigator = GetHelpNavigator(ctl);
            bool show = GetShowHelp(ctl);

            if (!show) {
                return;
            }

            // If the mouse was down, we first try whats this help
            //
            if (Control.MouseButtons != MouseButtons.None && helpString != null) {
                Debug.WriteLineIf(Help.WindowsFormsHelpTrace.TraceVerbose, "HelpProvider:: Mouse down w/ helpstring");

                if (helpString.Length > 0) {
                    Help.ShowPopup(ctl, helpString, hevent.MousePos);
                    hevent.Handled = true;
                }
            }

            // If we have a help file, and help keyword we try F1 help next
            //
            if (!hevent.Handled && helpNamespace != null) {
                Debug.WriteLineIf(Help.WindowsFormsHelpTrace.TraceVerbose, "HelpProvider:: F1 help");
                if (keyword != null) {
                    if (keyword.Length > 0) {
                        Help.ShowHelp(ctl, helpNamespace, navigator, keyword);
                        hevent.Handled = true;
                    }
                }

                if (!hevent.Handled) {
                    Help.ShowHelp(ctl, helpNamespace, navigator);
                    hevent.Handled = true;
                }
            }

            // So at this point we don't have a help keyword, so try to display
            // the whats this help
            //
            if (!hevent.Handled && helpString != null) {
                Debug.WriteLineIf(Help.WindowsFormsHelpTrace.TraceVerbose, "HelpProvider:: back to helpstring");

                if (helpString.Length > 0) {
                    Help.ShowPopup(ctl, helpString, hevent.MousePos);
                    hevent.Handled = true;
                }
            }

            // As a last resort, just popup the contents page of the help file...
            //
            if (!hevent.Handled && helpNamespace != null) {
                Debug.WriteLineIf(Help.WindowsFormsHelpTrace.TraceVerbose, "HelpProvider:: contents");

                Help.ShowHelp(ctl, helpNamespace);
                hevent.Handled = true;
            }
        }

 protected override void OnHelpRequested(HelpEventArgs hlpevent)
 {
     ProtectDialogHelpHelper.ShowHelpByTopicId(this, ProtectDialogHelpHelper.TopicId.PesMobileClient);
 }

 /// <summary>
 /// HelpRequested event handler of the mapPropertyEditor control.
 /// </summary>
 /// <param name="sender">The source object of this event.</param>
 /// <param name="hlpevent">The parameters of the help event.</param>
 void mapPropertyEditor_HelpRequested(object sender, HelpEventArgs hlpevent)
 {
     if (this.HelpRequested != null)
         this.HelpRequested(sender, hlpevent);
 }

 private void OnHelpRequested(object sender, HelpEventArgs e)
 {
     OnClickHelpButton(null, null);
 }