发送窗体系统消息.frm

个人VB学习源码精选,自己学习时的一些编程小程序,希望对大家有帮助

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   2940
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4620
   LinkTopic       =   "Form1"
   ScaleHeight     =   2940
   ScaleWidth      =   4620
   StartUpPosition =   3  'Windows Default
   Begin VB.CommandButton Command3 
      Caption         =   "还原"
      Height          =   495
      Left            =   840
      TabIndex        =   3
      Top             =   1560
      Width           =   1215
   End
   Begin VB.CommandButton Command4 
      Caption         =   "关闭"
      Height          =   495
      Left            =   2640
      TabIndex        =   2
      Top             =   1560
      Width           =   1215
   End
   Begin VB.CommandButton Command2 
      Caption         =   "缩小"
      Height          =   495
      Left            =   2640
      TabIndex        =   1
      Top             =   600
      Width           =   1215
   End
   Begin VB.CommandButton Command1 
      Caption         =   "放大"
      Height          =   495
      Left            =   840
      TabIndex        =   0
      Top             =   600
      Width           =   1215
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Sub Command1_Click()
    SendMessage Me.hwnd, WM_SYSCOMMAND, SC_MAXIMIZE, ByVal 0&
End Sub

Private Sub Command2_Click()
    SendMessage Me.hwnd, WM_SYSCOMMAND, SC_MINIMIZE, ByVal 0&
End Sub

Private Sub Command3_Click()
    SendMessage Me.hwnd, WM_SYSCOMMAND, SC_RESTORE, ByVal 0&
End Sub

Private Sub Command4_Click()
    SendMessage Me.hwnd, WM_SYSCOMMAND, SC_CLOSE, ByVal 0&
End Sub