在窗体form代码中加入如下代码即可：
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protected
override
CreateParams CreateParams
{
get
{
CreateParams cp =
base
.CreateParams;
cp.ExStyle |= 0x02000000;
return
cp;
}
}
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UserControl的Code
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protected
override
CreateParams CreateParams {
get
{
var
parms =
base
.CreateParams;
parms.Style &= ~0x02000000;
// Turn off WS_CLIPCHILDREN
return
parms;
}
}
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https://www.cnblogs.com/fuhang/p/8721325.html
本文参考链接：https://www.cnblogs.com/xihong2014/p/15368564.html
