问题描述
在Delphi 2009中，我发现在调用表单大小时发生的PageControl的闪烁可以通过将其 DoubleBuffered 属性设置为true来减少。
In Delphi 2009 I found that the flicker of a PageControl - which occurs during resizing of the form - can be reduced by setting its DoubleBuffered property to true.
但是，如果我将控件添加到PageControl选项卡中，则无论DoubleBuffered属性设置如何，它们将闪烁。我也试过启用运行时主题。
However if I add controls to the PageControl tabsheets, they will flicker regardless of their DoubleBuffered property setting. I have also tried with and without runtime themes enabled.
推荐答案
设置 ParentBackground 到 False 为PageControl的组件帮助了很多。然而，这导致这些面板组件的颜色不同，现在它们都具有较暗的背景。也许这可以很容易地修复（不丢失主题支持）。
Setting ParentBackground to False for components on the PageControl helped a lot. However this results in a different color of these panel components, they all have a darker background now. Maybe this can be fixed easily (without losing Theme support).
我还安装了，它具有（TPageControl主动闪烁很多主题）。
I also installed VCL Fix Pack which has a fix for QC 56252 (TPageControl flickers a lot with active theming).
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