你好：
可以尝试一下这个方法：
public class ShadowedForm : Form {
protected override CreateParams CreateParams {
get {
const int CS_DROPSHADOW = 0x20000;
CreateParams cp = base.CreateParams;
cp.ClassStyle |= CS_DROPSHADOW;
return cp;
}
}
// ... other code ...
}
绘制自己的阴影的话可以尝试叠加另外一个form，没有尝试过这样做，建议你还是通过WPF来实现，Winform很难做到很理想的阴影效果。
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