Vb.net 無邊框窗體如何實現(xiàn)四周陰影？ 網(wǎng)上搜到的都是兩邊陰影的，我需要四周陰影

設(shè)置全局變量：

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Dim?drag?As?Boolean

Dim?mousex?As?Integer

Dim?mousey?As?Integer

假設(shè)你想拖動的是Panel1控件，以及此控件上的?Label1（用于顯示標(biāo)題）和PictureBox4（用于顯示圖標(biāo)）：

Private?Sub?TitleMove_MouseDown(sender?As?Object,?e?As?System.Windows.Forms.MouseEventArgs)?Handles?Panel1.MouseDown,?Label1.MouseDown,?PictureBox4.MouseDown

drag?=?True

mousex?=?Windows.Forms.Cursor.Position.X?-?Me.Left

mousey?=?Windows.Forms.Cursor.Position.Y?-?Me.Top

End?Sub

Private?Sub?TitleMove_MouseMove(sender?As?Object,?e?As?System.Windows.Forms.MouseEventArgs)?Handles?Panel1.MouseMove,?Label1.MouseMove,?PictureBox4.MouseMove

If?drag?Then

Me.Top?=?Windows.Forms.Cursor.Position.Y?-?mousey

Me.Left?=?Windows.Forms.Cursor.Position.X?-?mousex

End?If

End?Sub

Private?Sub?TitleMove_MouseUp(sender?As?Object,?e?As?System.Windows.Forms.MouseEventArgs)?Handles?Panel1.MouseUp,?Label1.MouseUp,?PictureBox4.MouseUp

drag?=?False

End?Sub

Vb.net 窗體四周陰影效果

它們的窗體實際上就是你截圖出來的大小，周圍的陰影效果都是自己畫出來的。

VB.NET里面要使無邊框的窗體有陰影該怎么做

調(diào)用系統(tǒng)API使窗體下?lián)碛嘘幱靶Ч?/p>

using System.Runtime.InteropServices;

然后再窗口類的隨便哪個地方加上：

const int CS_DROPSHADOW = 0x20000;

const int GCL_STYLE = (-26);

//聲明Win32 API

[DllImport("user32.dll", CharSet = CharSet.Auto)]

public static extern int SetClassLong(IntPtr hwnd,int nIndex,int dwNewLong);

[DllImport("user32.dll", CharSet = CharSet.Auto)]

public static extern int GetClassLong(IntPtr hwnd, int nIndex);

最后在窗體的構(gòu)造函數(shù)中加上：

SetClassLong(this.Handle, GCL_STYLE, GetClassLong(this.Handle, GCL_STYLE) | CS_DROPSHADOW);

VB.NET窗體陰影

vb.net2008

vb.net API 是將除特殊變量（如H20000）的Long都改成Integer

窗體的右側(cè)和下方有陰影

Public Class Form1

Private Const CS_DROPSHADOW = H20000

Private Const GCL_STYLE = (-26)

Private Declare Function GetClassLong Lib "user32" Alias "GetClassLongA" (ByVal hwnd As Integer, ByVal nIndex As Integer) As Integer

Private Declare Function SetClassLong Lib "user32" Alias "SetClassLongA" (ByVal hwnd As Integer, ByVal nIndex As Integer, ByVal dwNewLong As Long) As Integer

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

SetClassLong(Me.Handle, GCL_STYLE, GetClassLong(Me.Handle, GCL_STYLE) Or CS_DROPSHADOW)

End Sub

End Class