关闭辅助delphi表单会导致主表单失去焦点 [英] Closing a secondary delphi form causes the main form to lose focus

问题描述

从主窗体显示辅助窗体，从第二窗体显示第三窗体时，然后关闭两个窗体都会导致主窗体失去焦点。

When showing a secondary form from the main form and from the second form showing a third form and then closing both forms will cause the main form to lose focus.

在XP SP3中使用Delphi 2009

Using Delphi 2009 with XP SP3

这是我重现此问题的步骤：

Here are my steps for reproducing the problem:

1. 创建新的VCL表单应用程序


2. 将按钮拖动到创建的表单上


3. 在点击处理程序中，创建一个新的TForm1并显示它
   

运行程序。单击按钮以显示第二个表单。单击第二个表单上的按钮以创建第三个表单。关闭两个新表单时，主表单将失去焦点。

Run the program. Click the button to show a second form. Click the button on the second form to create a third form. When closing both new forms the main form will lose its focus.

这是按钮单击事件处理程序中的代码：

This is my code in the button click event handler:

// Using Self does not change the results
with TForm1.Create(nil) do
    show;

有什么方法可以阻止我的主表单失去焦点吗？

Is there any way to stop my main form from losing focus?

推荐答案

将我的Delphi安装从版本 12.0.3170.16989（无更新）升级到版本 12.0.3420.21218（更新3和4）之后我再也无法重现该问题了。

After upgrading my Delphi installation from version 12.0.3170.16989 (no updates) to version 12.0.3420.21218 (update 3 & 4) I could not reproduce the problem anymore.

似乎是一个已在更新中修复的错误。

Seems like it was a bug that was fixed in the update.

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