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Dicas
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Visual Basic (Menu/Toobar/Coolbar)
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Título da Dica: Criando menus em colunas
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Postada em 30/9/2003 por ^HEAVY-METAL^
Public Type MENUITEMINFO
cbSize As Long
fMask As Long
fType As Long
fState As Long
wID As Long
hSubMenu As Long
hbmpChecked As Long
hbmpUnchecked As Long
dwItemData As Long
dwTypeData As String
cch As Long
End Type
Public Declare Function GetMenu Lib "user32" _
(ByVal hwnd As Long) As Long
Public Declare Function GetMenuItemCount Lib "user32" _
(ByVal hMenu As Long) As Long
Public Declare Function GetSubMenu Lib "user32" _
(ByVal hMenu As Long, ByVal nPos As Long) As Long
Public Declare Function GetMenuItemInfo Lib "user32" _
Alias "GetMenuItemInfoA" _
(ByVal hMenu As Long, ByVal un As Long, _
ByVal b As Boolean, lpmii As MENUITEMINFO) As Long
Public Declare Function SetMenuItemInfo Lib "user32" _
Alias "SetMenuItemInfoA" _
(ByVal hMenu As Long, ByVal uItem As Long, _
ByVal fByPosition As Long, lpmii As MENUITEMINFO) As Long
Public Const MIIM_STATE As Long = &H1
Public Const MIIM_ID As Long = &H2
Public Const MIIM_SUBMENU As Long = &H4
Public Const MIIM_CHECKMARKS As Long = &H8
Public Const MIIM_TYPE As Long = &H10
Public Const MIIM_DATA As Long = &H20
Public Const MFT_RADIOCHECK As Long = &H200
Public Const MFT_STRING As Long = &H0
Public Const RGB_STARTNEWCOLUMNWITHVERTBAR As Long = &H20
Public Const RGB_STARTNEWCOLUMN As Long = &H40
Public Const RGB_EMPTY As Long = &H100
Public Const RGB_VERTICALBARBREAK As Long = &H160
Public Const RGB_SEPARATOR As Long = &H800
Private Sub Command1_Click()
'divides the menu at the last menu
'item (mnuItemCount - 1)
Dim r As Long
Dim hSubMenu As Long
Dim mnuItemCount As Long
Dim mInfo As MENUITEMINFO
'Get the menuitem handle
hSubMenu = GetSubMenu(GetMenu(Me.hWnd), 0)
mnuItemCount = GetMenuItemCount(hSubMenu)
'retrieve the current information For the
'last item In the menu into an MENUITEMINFO structure.
'True means MF_BYPOSITION.
mInfo.cbSize = Len(mInfo)
mInfo.fMask = MIIM_TYPE
mInfo.fType = MFT_STRING
mInfo.dwTypeData = Space$(256)
mInfo.cch = Len(mInfo.dwTypeData)
r = GetMenuItemInfo(hSubMenu, mnuItemCount - 1, True, mInfo)
'modify its attributes To the New Type,
'telling the menu To insert a break before
'the member In the MENUITEMINFO structure.
mInfo.fType = RGB_STARTNEWCOLUMNWITHVERTBAR
'we only want To change the style, so reset fMask
mInfo.fMask = MIIM_TYPE
r = SetMenuItemInfo(hSubMenu, mnuItemCount - 1, True, mInfo)
If r Then Print " Done !"
End Sub
Private Sub Command2_Click()
'divides the menu into 2 even columns
Dim r As Long
Dim hSubMenu As Long
Dim mnuItemCount As Long
Dim mInfo As MENUITEMINFO
Dim pad As Long
'Get the menuitem handle
hSubMenu = GetSubMenu(GetMenu(Me.hWnd), 0)
mnuItemCount = GetMenuItemCount(hSubMenu)
'If there are an odd number of menu items, make
'sure that the Left column has the extra item
If mnuItemCount Mod 2 <> 0 Then pad = 1
'retrieve the current information For the
'last item In the menu into an MENUITEMINFO structure.
'True means MF_BYPOSITION.
mInfo.cbSize = Len(mInfo)
mInfo.fMask = MIIM_TYPE
mInfo.fType = MFT_STRING
mInfo.dwTypeData = Space$(256)
mInfo.cch = Len(mInfo.dwTypeData)
r = GetMenuItemInfo(hSubMenu, (mnuItemCount \ 2) + pad, True, mInfo)
'modify its attributes To the New Type,
'telling the menu To insert a break before
'the member In the MENUITEMINFO structure.
mInfo.fType = RGB_STARTNEWCOLUMNWITHVERTBAR
mInfo.fMask = MIIM_TYPE
r = SetMenuItemInfo(hSubMenu, (mnuItemCount \ 2) + pad, True, mInfo)
If r Then Print " Done !"
End Sub
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