(仅供参考)
动态创建菜单,鼠标右键弹出菜单,执行对应鼠标事件 ''''窗体 Option Explicit Private Sub Form_Load() hMenu = CreateMenu() hmenupopup = CreatePopupMenu() result = AppendMenu(hmenupopup, MF_STRING, 300, "&New") result = AppendMenu(hmenupopup, MF_STRING, 301, "&Save") result = AppendMenu(hmenupopup, MF_STRING, 302, "Save &As...") result = AppendMenu(hMenu, MF_POPUP, hmenupopup, "&File") oldwinproc = GetWindowLong(Me.hWnd, GWL_WNDPROC) SetWindowLong Me.hWnd, GWL_WNDPROC, AddressOf OnMenu End Sub
Private Sub Form_MouseDown(Button As Integer, Shift As Integer, x As Single, y As Single) Dim r As RECT Dim p As POINTAPI If Button = vbRightButton Then GetCursorPos p TrackPopupMenu hmenupopup, 0, p.x, p.y, 0, Me.hWnd, r End If End Sub
Private Sub Form_Unload(Cancel As Integer) SetWindowLong Me.hWnd, GWL_WNDPROC, oldwinproc End Sub ''''模块 Option Explicit
Public Declare Function CreateMenu Lib "user32" () As Long Public Declare Function AppendMenu Lib "user32" Alias "AppendMenuA" (ByVal hMenu As Long, ByVal wFlags As Long, ByVal wIDNewItem As Long, ByVal lpNewItem As Any) As Long Public Declare Function TrackPopupMenu Lib "user32" (ByVal hMenu As Long, ByVal wFlags As Long, ByVal x As Long, ByVal y As Long, ByVal nReserved As Long, ByVal hWnd As Long, lprc As RECT) As Long Public Declare Function CreatePopupMenu Lib "user32" () As Long Public Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long Public Declare Function CallWindowProc Lib "user32" Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, ByVal hWnd As Long, ByVal Msg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long Public Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long) As Long Public Declare Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As Long Public Const MF_STRING = &H0& Public Const MF_POPUP = &H10& Public Const WM_USER = &H400 Public Type RECT Left As Long Top As Long Right As Long Bottom As Long End Type Public Type POINTAPI x As Long y As Long End Type Public Const GWL_WNDPROC = (-4) Public hMenu As Long Public hmenupopup As Long Public result As Long Public oldwinproc As Long Public Const WM_COMMAND = &H111
Public Function OnMenu(ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long Select Case wMsg Case WM_COMMAND Select Case wParam Case 300 MsgBox "u select new", vbInformation, "hello, world!" Case 301 MsgBox "u select save", vbInformation, "hello, world!" Case 302 MsgBox "u select save as", vbInformation, "hello, world!" End Select End Select OnMenu = CallWindowProc(oldwinproc, hWnd, wMsg, wParam, lParam) End Function
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