VSTO：应用重点 [英] VSTO: Application Focus

问题描述

任何人都知道的一种方式，看是否有VSTO项目的Excel窗口被激活/焦点？

Anyone know of a way to see if the Excel window of a VSTO project is active/in focus?

我在寻找的等效 System.Windows.Window.IsActive 。

推荐答案

我已经感到失望这一点。您是否使用了VSTO应用程序的对话？如果是这样，我所做的就是添加一个事件到Windows窗体/对话闭幕如下激活Office应用程序（例如与Word，所以有可能会在Excel差异）：

I've been frustrated with this as well. Are you using a dialog in the VSTO app? If so, what I have done is add an event to the closing of a Windows Form/Dialog to activate the Office application as follows (example is with Word, so there may be differences in Excel):

//... VSTO Startup Event
WindowsForm form = new WindowsForm();
form.FormClosed += new FormClosedEventHandler(form_FormClosed);
form.Show();


void form_FormClosed(object sender, FormClosedEventArgs e)
{
    this.Application.Activate();         
    this.Application.ActiveWindow.WindowState = Microsoft.Office.Interop.Word.WdWindowState.wdWindowStateNormal;

}

我发现这行永远掌握/返回true：

I have found this line always lies/returns true:

this.ActiveWindow.Active()

但是，这工作得更好（全局布尔变量AppActive跟踪活动窗口）：

But this works better (global bool variable "AppActive" to keep track of active window):

//... VSTO Startup Event    
this.Application.WindowDeactivate += new Microsoft.Office.Interop.Word.ApplicationEvents4_WindowDeactivateEventHandler(Application_WindowDeactivate);
this.Application.WindowActivate += new Microsoft.Office.Interop.Word.ApplicationEvents4_WindowActivateEventHandler(Application_WindowActivate);

    void Application_WindowActivate(Microsoft.Office.Interop.Word.Document Doc, Microsoft.Office.Interop.Word.Window Wn)
    {
        AppActive = true;
    }

    void Application_WindowDeactivate(Microsoft.Office.Interop.Word.Document Doc, Microsoft.Office.Interop.Word.Window Wn)
    {
        AppActive = false;
    }

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