Expose envdte dte in a ToolWindow1 button_click handler VS2022

[troglobytor]

I want to display various things in the ToolBoxWindow1 after a button is clicked that need a DTE dte instance accesible by the button_click handler. My first use was to show macros and expansions in the tool window for a project. None of the old examples seem to work or get the dte non null in the handler.

[troglobytor]

Two methods illustrated, one static, one instance:

// Guid...
    public class ToolWindow1 : ToolWindowPane{
        public static EnvDTE.DTE dte0;
        public EnvDTE.DTE dte;
        public ToolWindow1Control control;
        // <summary>
        // Initializes a new instance of the <see cref="ToolWindow1"/> class.
        // </summary>
        public ToolWindow1() : base(null){
            ThreadHelper.ThrowIfNotOnUIThread();
            this.Caption = "ToolWindow1";
            //NO! dte at this point always null
            //dte=(EnvDTE.DTE)GetService(typeof(EnvDTE.DTE));
            // This is the user control hosted by the tool window; Note that, even if this class implements IDisposable,
            // we are not calling Dispose on this object. This is because ToolWindowPane calls Dispose on
            // the object returned by the Content property.
            this.control = new ToolWindow1Control();
            this.Content = control;
            control.TW1 = this;
            control.VisibilityChanged += Control_VisibilityChanged;
        }
        private void Control_VisibilityChanged(bool isVisible){
            ThreadHelper.ThrowIfNotOnUIThread();
            if (isVisible){
                // Control is visible, perform any necessary actions
                // Your code here...
                if (this.dte == null) dte = (EnvDTE.DTE)GetService(typeof(EnvDTE.DTE));
                if (dte0 == null) dte0 = (EnvDTE.DTE)GetService(typeof(EnvDTE.DTE));
            }
        }

[troglobytor]

Now how to get those "$(macros)" like a project's "(IntDir)"?

[RobertvanderHulst]

I am getting the DTE object in the InitializeAsync of my package and hold on to it in the package.

DTE2 m_dte;
internal DTE2 Dte => m_dte;

protected override async Task InitializeAsync(CancellationToken cancellationToken, IProgress<ServiceProgressData> progress)
        {

            this.RegisterToolWindows();
            instance = this;
            await base.InitializeAsync(cancellationToken, progress);
            await ThreadHelper.JoinableTaskFactory.SwitchToMainThreadAsync();

            m_dte = (DTE2)ServiceProvider.GlobalProvider.GetService(typeof(EnvDTE.DTE));

            // further intitializations
           
        }

Later when I need something from the DTE object then I use this reference to DTE.
Btw for VS 2022 it is recommended to use DTE2.

[troglobytor]

Thanks for information.