borderless resize (long).txt

Imports System.Text
Imports System.Data
Imports System.Drawing
Imports System.Windows.Forms
Imports System.ComponentModel
Imports System.Collections.Generic

Public Class Form1

    Dim maximized As Boolean
    Dim on_MinimumSize As Boolean
    Dim minimumWidth As Short = 350
    Dim minimumHeight As Short = 26
    Dim borderSpace As Short = 20
    Dim borderDiameter As Short = 3

    Dim onBorderRight As Boolean
    Dim onBorderLeft As Boolean
    Dim onBorderTop As Boolean
    Dim onBorderBottom As Boolean
    Dim onCornerTopRight As Boolean
    Dim onCornerTopLeft As Boolean
    Dim onCornerBottomRight As Boolean
    Dim onCornerBottomLeft As Boolean

    Dim movingRight As Boolean
    Dim movingLeft As Boolean
    Dim movingTop As Boolean
    Dim movingBottom As Boolean
    Dim movingCornerTopRight As Boolean
    Dim movingCornerTopLeft As Boolean
    Dim movingCornerBottomRight As Boolean
    Dim movingCornerBottomLeft As Boolean

    Private Sub Form1_MouseUp(sender As Object, e As MouseEventArgs) Handles MyBase.MouseUp
        stopResizer()
    End Sub

    Private Sub Form1_MouseDown(sender As Object, e As MouseEventArgs) Handles MyBase.MouseDown
        If e.Button = MouseButtons.Left Then
            If onBorderRight Then
                movingRight = True
            Else
                movingRight = False
            End If
            If onBorderLeft Then
                movingLeft = True
            Else
                movingLeft = False
            End If
            If onBorderTop Then
                movingTop = True
            Else
                movingTop = False
            End If
            If onBorderBottom Then
                movingBottom = True
            Else
                movingBottom = False
            End If
            If onCornerTopRight Then
                movingCornerTopRight = True
            Else
                movingCornerTopRight = False
            End If
            If onCornerTopLeft Then
                movingCornerTopLeft = True
            Else
                movingCornerTopLeft = False
            End If
            If onCornerBottomRight Then
                movingCornerBottomRight = True
            Else
                movingCornerBottomRight = False
            End If
            If onCornerBottomLeft Then
                movingCornerBottomLeft = True
            Else
                movingCornerBottomLeft = False
            End If
        End If
    End Sub

    Private Sub Form1_MouseMove(sender As Object, e As MouseEventArgs) Handles MyBase.MouseMove
        If maximized Then
            Return
        End If

        If Me.Width <= minimumWidth Then
            Me.Width = (minimumWidth + 5)
            on_MinimumSize = True
        End If
        If Me.Height <= minimumHeight Then
            Me.Height = (minimumHeight + 5)
            on_MinimumSize = True
        End If
        If on_MinimumSize Then
            stopResizer()
        Else
            startResizer()
        End If


        If (Cursor.Position.X > ((Me.Location.X + Me.Width) - borderDiameter)) And (Cursor.Position.Y > (Me.Location.Y + borderSpace)) And (Cursor.Position.Y < ((Me.Location.Y + Me.Height) - borderSpace)) Then
            Me.Cursor = Cursors.SizeWE
            onBorderRight = True

        ElseIf (Cursor.Position.X < (Me.Location.X + borderDiameter)) And (Cursor.Position.Y > (Me.Location.Y + borderSpace)) And (Cursor.Position.Y < ((Me.Location.Y + Me.Height) - borderSpace)) Then
            Me.Cursor = Cursors.SizeWE
            onBorderLeft = True

        ElseIf (Cursor.Position.Y < (Me.Location.Y + borderDiameter)) And (Cursor.Position.X > (Me.Location.X + borderSpace)) And (Cursor.Position.X < ((Me.Location.X + Me.Width) - borderSpace)) Then
            Me.Cursor = Cursors.SizeNS
            onBorderTop = True

        ElseIf (Cursor.Position.Y > ((Me.Location.Y + Me.Height) - borderDiameter)) And (Cursor.Position.X > (Me.Location.X + borderSpace)) And (Cursor.Position.X < ((Me.Location.X + Me.Width) - borderSpace)) Then
            Me.Cursor = Cursors.SizeNS
            onBorderBottom = True

        ElseIf (Cursor.Position.X = ((Me.Location.X + Me.Width) - 1)) And (Cursor.Position.Y = Me.Location.Y) Then
            Me.Cursor = Cursors.SizeNESW
            onCornerTopRight = True
        ElseIf (Cursor.Position.X = Me.Location.X) And (Cursor.Position.Y = Me.Location.Y) Then
            Me.Cursor = Cursors.SizeNWSE
            onCornerTopLeft = True

        ElseIf (Cursor.Position.X = ((Me.Location.X + Me.Width) - 1)) And (Cursor.Position.Y = ((Me.Location.Y + Me.Height) - 1)) Then
            Me.Cursor = Cursors.SizeNWSE
            onCornerBottomRight = True

        ElseIf (Cursor.Position.X = Me.Location.X) And (Cursor.Position.Y = ((Me.Location.Y + Me.Height) - 1)) Then
            Me.Cursor = Cursors.SizeNESW
            onCornerBottomLeft = True
        Else

            onBorderRight = False
            onBorderLeft = False
            onBorderTop = False
            onBorderBottom = False
            onCornerTopRight = False
            onCornerTopLeft = False
            onCornerBottomRight = False
            onCornerBottomLeft = False
            Me.Cursor = Cursors.[Default]
        End If
    End Sub

    Private Sub startResizer()
        If movingRight Then
            Me.Width = Cursor.Position.X - Me.Location.X
        ElseIf movingLeft Then
            Me.Width = ((Me.Width + Me.Location.X) - Cursor.Position.X)
            Me.Location = New Point(Cursor.Position.X, Me.Location.Y)
        ElseIf movingTop Then
            Me.Height = ((Me.Height + Me.Location.Y) - Cursor.Position.Y)
            Me.Location = New Point(Me.Location.X, Cursor.Position.Y)
        ElseIf movingBottom Then
            Me.Height = (Cursor.Position.Y - Me.Location.Y)
        ElseIf movingCornerTopRight Then
            Me.Width = (Cursor.Position.X - Me.Location.X)
            Me.Height = ((Me.Location.Y - Cursor.Position.Y) + Me.Height)
            Me.Location = New Point(Me.Location.X, Cursor.Position.Y)
        ElseIf movingCornerTopLeft Then
            Me.Width = ((Me.Width + Me.Location.X) - Cursor.Position.X)
            Me.Location = New Point(Cursor.Position.X, Me.Location.Y)
            Me.Height = ((Me.Height + Me.Location.Y) - Cursor.Position.Y)
            Me.Location = New Point(Me.Location.X, Cursor.Position.Y)
        ElseIf movingCornerBottomRight Then
            Me.Size = New Size(Cursor.Position.X - Me.Location.X, Cursor.Position.Y - Me.Location.Y)
        ElseIf movingCornerBottomLeft Then
            Me.Width = ((Me.Width + Me.Location.X) - Cursor.Position.X)
            Me.Height = (Cursor.Position.Y - Me.Location.Y)
            Me.Location = New Point(Cursor.Position.X, Me.Location.Y)
        End If
    End Sub

    Private Sub stopResizer()
        movingRight = False
        movingLeft = False
        movingTop = False
        movingBottom = False
        movingCornerTopRight = False
        movingCornerTopLeft = False
        movingCornerBottomRight = False
        movingCornerBottomLeft = False
        Me.Cursor = Cursors.[Default]
        System.Threading.Thread.Sleep(300)
        on_MinimumSize = False
    End Sub
End Class