怎样设置桌面区域(窗口最大化区域)

[mountlin]

就象一些所谓的网上赚钱的广告条那样,改变桌面区域后,窗口的最大化不会覆盖整个桌面,而是在定义的区域,这该如何实现?我用GetDesktopWindow()和SetWindowRgn(),可是不行.

[随风bj]

SetWindowRgn()是用来减切窗口的，用SetWindowPos或MoveWindow吧，

[mountlin]

急需解答!!请各位高手不吝赐教!

[iProgram]

看MSDN里的SHAppBarMessage
恰巧在天极VB论坛上答过这个问题，这是VB代码，C++不会有什么区别：
作者iProgram 发表于2001.02.01 10:56, 已有3人阅读本帖


*Note*:

Form1.BorderStyle=3 - Fixed Dialog

Form1.ControlBox=False

Form1.Caption=""

'------------------------------------------------------------------

Private Declare Function SHAppBarMessage Lib "shell32.dll" (ByVal dwMessage As Long, pData As APPBARDATA) As Long

Private Type RECT

Left As Long

Top As Long

Right As Long

Bottom As Long

End Type

Private Type APPBARDATA

cbSize As Long

hwnd As Long

uCallbackMessage As Long

uEdge As Long

rc As RECT

lParam As Long

End Type

Private Const ABM_NEW = &H0

Private Const ABM_REMOVE = &H1

Private Const ABM_SETPOS = &H3



Private Sub RegAPPBar(ByVal bReg As Boolean)

Static ABD As APPBARDATA

Dim hRgn As Long

If bReg Then

ABD.hwnd = hwnd

ABD.uEdge = 1 'Top

ABD.cbSize = Len(ABD)

ABD.rc.Left = 0

ABD.rc.Top = 0

ABD.rc.Bottom = 60 'Height of from

SHAppBarMessage ABM_NEW, ABD

SHAppBarMessage ABM_SETPOS, ABD

DoEvents

Move -60, -60, Screen.Width + 120

Else

SHAppBarMessage ABM_REMOVE, ABD

DoEvents

Move 30, 30, Screen.Width - 200

End If

End Sub



Private Sub Form_Click()

Static bReg As Boolean

bReg = Not (bReg)

Call RegAPPBar(bReg)

End Sub



Private Sub Form_DblClick()

End

End Sub

Private Sub Form_Load()

Left = 30

Top = 30

Height = 500

Width = Screen.Width - 200

End Sub

[iProgram]

不想看到窗体的话用MoveWindow(0,0,0,0)就行了：）

[mountlin]

我试过了,用SetWindowPos或MoveWindow也不行,难道是我的方法不对?

[iProgram]

在VB里直接写Width就代表Me.Width也就是Form1.Width，所以hWnd代表Form1.hWnd，所以在MFC中写成ABD.hwnd = m_hWnd就行了，CallBackMessage我没设过，看名字好像是自定义的消息，用来映射函数用的。

[mountlin]

to iProgram:
我有点不太懂,那个hwnd没有赋过值,有什么用呢?还有APPBARDATA的uCallbackMessage该怎么设呢?