vb.net无窗体外框 vbnet窗体设计

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;

然后再窗口类的随便哪个地方加上：

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);

最后在窗体的构造函数中加上：

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

相关问答

Q1: VB.NET 拖动无边框窗体编程实例

Imports System Drawing Imports System Windows Forms ****************************************** Private oOriginalRegion As Region = Nothing 用于窗体移动 Private bFormDragging As Boolean = False Private oPointClicked As Point ****************************************** Private Sub Form _MouseDown(ByVal sender As Object ByVal e As System Windows Forms MouseEventArgs) Handles MyBase MouseDown Me bFormDragging = True Me oPointClicked = New Point(e X e Y) End Sub ****************************************** Private Sub Form _MouseUp(ByVal sender As Object ByVal e As System Windows Forms MouseEventArgs) Handles MyBase MouseUp Me bFormDragging = False End Sub ****************************************** Private Sub Form _MouseMove(ByVal sender As Object ByVal e As System Windows Forms MouseEventArgs) Handles MyBase MouseMove If Me bFormDragging Then Dim oMoveToPoint As Point 以当前鼠标位置为基础 找出目标位置 oMoveToPoint = Me PointToScreen(New Point(e X e Y)) 根据开始位置作出调整 oMoveToPoint Offset(Me oPointClicked X * _ (Me oPointClicked Y + _ SystemInformation CaptionHeight + _ SystemInformation BorderSize Height) * ) 移动窗体 Me Location = oMoveToPoint End If

lishixinzhi/Article/program/ASP/201311/21755

Q2: vb.net 无边框窗体的问题

设置窗体的text为空，设置窗体的controlbox属性为false，设置窗体的FormBorderStyle 属性为Sizable，就可以改变窗体大小了，并且可以在任务栏点击。

Q3: VB.net怎样按住鼠标移动无边框窗体

1.在mouse事件中实现

2.调用windows API

实现方式为：

1.在mouse事件中实现

[csharp] view plain copy

Point mouseOff;//鼠标移动位置变量

bool leftFlag;//标签是否为左键

private void groupControl1_MouseUp(object sender, MouseEventArgs e)

{

if (leftFlag)

{

leftFlag = false;//释放鼠标后标注为false;

}

}

private void groupControl1_MouseMove(object sender, MouseEventArgs e)

{

if (leftFlag)

{

Point mouseSet = Control.MousePosition;

mouseSet.Offset(mouseOff.X, mouseOff.Y); //设置移动后的位置

Location = mouseSet;

}

}

private void groupControl1_MouseDown(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

mouseOff = new Point(-e.X, -e.Y); //得到变量的值

leftFlag = true; //点击左键按下时标注为true;

}

}

private void groupControl1_MouseDown(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

mouseOff = new Point(-e.X, -e.Y); //得到变量的值

leftFlag = true; //点击左键按下时标注为true;

}

}

2.调用windows API

调用前需要添加using System.Runtime.InteropServices;

[csharp] view plain copy

[DllImport("user32.dll")]

public static extern bool ReleaseCapture();

[DllImport("user32.dll")]

public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);

private void groupControl1_MouseDown(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

ReleaseCapture(); //释放鼠标捕捉

//发送左键点击的消息至该窗体(标题栏)

SendMessage(Handle, 0xA1, 0x02, 0);

}

}

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