棒槌形窗口.frm

来自「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」· FRM 代码 · 共 33 行

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   6075
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   6255
   LinkTopic       =   "Form1"
   ScaleHeight     =   6075
   ScaleWidth      =   6255
   StartUpPosition =   3  '窗口缺省
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Declare Function CreateEllipticRgn Lib "gdi32" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long
Private Declare Function CreateRoundRectRgn Lib "gdi32" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long, ByVal X3 As Long, ByVal Y3 As Long) As Long
Private Declare Function CombineRgn Lib "gdi32" (ByVal hDestRgn As Long, ByVal hSrcRgn1 As Long, ByVal hSrcRgn2 As Long, ByVal nCombineMode As Long) As Long
Private Declare Function SetWindowRgn Lib "user32" (ByVal hWnd As Long, ByVal hRgn As Long, ByVal bRedraw As Boolean) As Long
Private Const RGN_OR = 2

Private Sub Form_Load()
    Dim p As Long
    Dim q As Long
    p = CreateEllipticRgn(0, 0, 200, 200)
    q = CreateRoundRectRgn(40, 120, 160, 400, 20, 20)
    CombineRgn p, p, q, RGN_OR
    SetWindowRgn hWnd, p, True
    Me.Refresh
End Sub