vb.net窗体阴影 vb中窗体是什么意思

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vbnet自制窗体怎么加上窗体阴影

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 Integer) 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)

Vb.net 无边框窗体如何实现四周阴影？网上搜到的都是两边阴影的，我需要四周阴影

设置全局变量：

Dim drag As Boolean

Dim mousex As Integer

Dim mousey As Integer

假设你想拖动的是Panel1控件，以及此控件上的 Label1（用于显示标题）和PictureBox4（用于显示图标）：

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里面要使无边框的窗体有阴影该怎么做

调用系统API使窗体下拥有阴影效果

using System.Runtime.InteropServices;

然后再窗口类vb.net窗体阴影的随便哪个地方加上vb.net窗体阴影：

const int CS_DROPSHADOW = 0x20000;

const int GCL_STYLE = (-26);

//声明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);

最后在窗体vb.net窗体阴影的构造函数中加上vb.net窗体阴影：

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

怎么用GDI+使窗体四周都有阴影效果，不用WPF，C#或者是vb.net也可以的注意是四周不是两边的。求帮忙啊

调用API是个好的办法vb.net窗体阴影，给你个参考网文vb.net窗体阴影：

如果一定要自已用GDI+绘制，很麻烦，比如把窗体设置成无边框，贴图上去，但可能要自已定义事件来响应缺少标题栏后的操作。等等