Visual Basic Source Code/Visual Basic Source Code.iso/vbsource/clipexam/clipexam.frm

Text File | 1994-05-16 | 7KB | 231 lines

VERSION 2.00
Begin Form frmClip
   BackColor       =   &H00C0C0C0&
   BorderStyle     =   3  'Fixed Double
   Caption         =   "VB Window Clipping Example"
   ClientHeight    =   4530
   ClientLeft      =   2250
   ClientTop       =   2025
   ClientWidth     =   4560
   Height          =   4935
   Left            =   2190
   LinkTopic       =   "Form1"
   ScaleHeight     =   4530
   ScaleWidth      =   4560
   Top             =   1680
   Width           =   4680
   Begin Frame Frame2
      BackColor       =   &H00C0C0C0&
      Height          =   615
      Left            =   120
      TabIndex        =   15
      Top             =   3840
      Width           =   4335
      Begin Label Label7
         AutoSize        =   -1  'True
         BackStyle       =   0  'Transparent
         Caption         =   "Internet: [e-mail]"
         Height          =   195
         Left            =   720
         TabIndex        =   13
         Top             =   360
         Width           =   2745
      End
      Begin Label Label6
         AutoSize        =   -1  'True
         BackColor       =   &H00C0C0C0&
         BackStyle       =   0  'Transparent
         Caption         =   "Written by David Gardiner, 13th April, 1994"
         Height          =   195
         Left            =   240
         TabIndex        =   14
         Top             =   120
         Width           =   3690
      End
   End
   Begin Frame Frame1
      BackColor       =   &H00C0C0C0&
      Caption         =   "Current Clipping"
      Height          =   1935
      Left            =   120
      TabIndex        =   0
      Top             =   120
      Width           =   1935
      Begin Label Label1
         AutoSize        =   -1  'True
         BackStyle       =   0  'Transparent
         Caption         =   "Left"
         Height          =   195
         Left            =   240
         TabIndex        =   1
         Top             =   360
         Width           =   345
      End
      Begin Label Label2
         AutoSize        =   -1  'True
         BackStyle       =   0  'Transparent
         Caption         =   "Top"
         Height          =   195
         Left            =   240
         TabIndex        =   2
         Top             =   720
         Width           =   345
      End
      Begin Label Label3
         AutoSize        =   -1  'True
         BackStyle       =   0  'Transparent
         Caption         =   "Right"
         Height          =   195
         Left            =   240
         TabIndex        =   3
         Top             =   1080
         Width           =   465
      End
      Begin Label Label4
         AutoSize        =   -1  'True
         BackStyle       =   0  'Transparent
         Caption         =   "Bottom"
         Height          =   195
         Left            =   240
         TabIndex        =   4
         Top             =   1440
         Width           =   600
      End
      Begin Label LeftLabel
         Alignment       =   1  'Right Justify
         BorderStyle     =   1  'Fixed Single
         Caption         =   "Label1"
         Height          =   225
         Left            =   1080
         TabIndex        =   5
         Top             =   360
         Width           =   615
      End
      Begin Label TopLabel
         Alignment       =   1  'Right Justify
         BorderStyle     =   1  'Fixed Single
         Caption         =   "Label2"
         Height          =   225
         Left            =   1080
         TabIndex        =   6
         Top             =   720
         Width           =   615
      End
      Begin Label RightLabel
         Alignment       =   1  'Right Justify
         BorderStyle     =   1  'Fixed Single
         Caption         =   "Label3"
         Height          =   225
         Left            =   1080
         TabIndex        =   7
         Top             =   1080
         Width           =   615
      End
      Begin Label BottomLabel
         Alignment       =   1  'Right Justify
         BorderStyle     =   1  'Fixed Single
         Caption         =   "Label4"
         Height          =   225
         Left            =   1080
         TabIndex        =   9
         Top             =   1440
         Width           =   615
      End
   End
   Begin CommandButton Command3
      Caption         =   "&Restore Default"
      Height          =   375
      Left            =   2880
      TabIndex        =   11
      Top             =   1200
      Width           =   1575
   End
   Begin CommandButton Command2
      Caption         =   "&Clip to Window"
      Height          =   375
      Left            =   2880
      TabIndex        =   10
      Top             =   720
      Width           =   1575
   End
   Begin CommandButton Command1
      Caption         =   "&Ok"
      Height          =   375
      Left            =   2880
      TabIndex        =   8
      Top             =   120
      Width           =   1575
   End
   Begin Label Label8
      Alignment       =   2  'Center
      Caption         =   "Public Domain. Please acknowledge use of this
code if used in your program(s)."
      Height          =   495
      Left            =   120
      TabIndex        =   16
      Top             =   3360
      Width           =   4335
   End
   Begin Label Label5
      BackColor       =   &H00C0C0C0&
      BackStyle       =   0  'Transparent
      Caption         =   "This little program shows how to use the Windows
API calls to clip the cursor to the current form. You could clip to any area
you wanted, though make sure that you restore the clipping to the default
(whole screen) on exit."
      Height          =   975
      Left            =   120
      TabIndex        =   12
      Top             =   2280
      Width           =   4350
   End
End
Option Explicit

Sub Command1_Click ()

    ' restore clip to what it was at start up
    Call ClipCursorToScreen

    ' exit
    End

End Sub

Sub Command2_Click ()

    ' Clip to form's window
    Call ClipCursorToWindow(frmClip.hWnd)

    ' display coordinates
    Call ShowCurrentRect
End Sub

Sub Command3_Click ()

    ' restore clip to whole screen
    Call ClipCursorToScreen

    ' display
    Call ShowCurrentRect
End Sub

Sub Form_Load ()

    ' display these
    Call ShowCurrentRect
End Sub

Sub ShowCurrentRect ()
Dim r As RECT

    'get current clipping region
    Call GetClipCursor(r)

    LeftLabel.Caption = Str$(r.Left)
    TopLabel.Caption = Str$(r.top)
    RightLabel.Caption = Str$(r.Right)
    BottomLabel.Caption = Str$(r.Bottom)

End Sub