mmenu.bas

多功能菜单、弹出菜单设计、个性化菜单

                        Call DeleteObject(hPen)
                    Next i

                Case LBS_IMAGE                                          ' 图像

                    If BarImage.Handle <> 0 Then
                        Dim barhDC As Long
                        barhDC = CreateCompatibleDC(GetDC(0))
                        SelectObject barhDC, BarImage.Handle
                        BitBlt .hdc, 0, 0, BarWidth, barRect.Bottom - barRect.Top + 1, barhDC, 0, 0, vbSrcCopy
                        DeleteDC barhDC
                    End If

            End Select
            
            
            ' 画菜单项
            If MyItemInfo(.itemID).itemType = MIT_SEPARATOR Then
                ' 画菜单分隔条(MIT_SEPARATOR)
                If MyItemInfo(.itemID).itemType = MIT_SEPARATOR Then
                    itemRect.Top = itemRect.Top + 2
                    itemRect.Bottom = itemRect.Top + 1
                    itemRect.Left = barRect.Right + 5
                    Select Case SepStyle
                        Case MSS_NONE                                       ' 无分隔条
                        
                        Case MSS_DEFAULT                                    ' 默认样式
                            DrawEdge .hdc, itemRect, EDGE_ETCHED, BF_TOP
                        Case Else                                           ' 其它
                            hPen = CreatePen(SepStyle, 0, SepColor)
                            hBrush = CreateSolidBrush(BkColor)
                            SelectObject .hdc, hPen
                            SelectObject .hdc, hBrush
                            Rectangle .hdc, itemRect.Left, itemRect.Top, itemRect.Right, itemRect.Bottom
                            DeleteObject hPen
                            DeleteObject hBrush
                    End Select
                End If
            Else
                If Not CBool(MyItemInfo(.itemID).itemState And MIS_DISABLED) Then   ' 当菜单项可用时
                    If .itemState And ODS_SELECTED Then                         ' 当鼠标移动到菜单项时
                    
                        ' 设置菜单项高亮范围
                        If SelectScope And ISS_ICON_TEXT Then
                            itemRect.Left = iconRect.Left
                        ElseIf SelectScope And ISS_TEXT Then
                            itemRect.Left = textRect.Left - 2
                        Else
                            itemRect.Left = .rcItem.Left
                        End If
                        
                        
                        ' 处理菜单项无图标或为CHECKBOX时的情况
                        If (MyItemInfo(.itemID).itemType = MIT_CHECKBOX Or MyItemInfo(.itemID).itemIcon = 0) And SelectScope <> ISS_LEFTBAR_ICON_TEXT Then
                            itemRect.Left = iconRect.Left
                        End If
                        
                        
                        ' 画菜单项边框
                        Select Case EdgeStyle
                            Case ISES_NONE                                          ' 无边框
                            
                            Case ISES_SUNKEN                                        ' 凹进
                                DrawEdge .hdc, itemRect, BDR_SUNKENOUTER, BF_RECT
                            Case ISES_RAISED                                        ' 凸起
                                DrawEdge .hdc, itemRect, BDR_RAISEDINNER, BF_RECT
                            Case Else                                               ' 其它
                                hPen = CreatePen(EdgeStyle, 0, EdgeColor)
                                hBrush = CreateSolidBrush(BkColor)
                                SelectObject .hdc, hPen
                                SelectObject .hdc, hBrush
                                Rectangle .hdc, itemRect.Left, itemRect.Top, itemRect.Right, itemRect.Bottom
                                DeleteObject hPen
                                DeleteObject hBrush
                        End Select
                        
                        
                        ' 画菜单项背景
                        InflateRect itemRect, -1, -1
                        Select Case FillStyle
                            Case ISFS_NONE                                  ' 无背景
                            
                            Case ISFS_HORIZONTALCOLOR                       ' 水平渐变色
                                
                                BlueArea = Int(FillEndColor / &H10000) - Int(FillStartColor / &H10000)
                                GreenArea = (Int(FillEndColor / &H100) And &HFF) - (Int(FillStartColor / &H100) And &HFF)
                                RedArea = (FillEndColor And &HFF) - (FillStartColor And &HFF)
            
                                For i = itemRect.Left To itemRect.Right - 1
                                    red = Int(FillStartColor And &HFF) + Int((i - itemRect.Left) / (itemRect.Right - itemRect.Left + 1) * RedArea)
                                    green = (Int(FillStartColor / &H100) And &HFF) + Int((i - itemRect.Left) / (itemRect.Right - itemRect.Left + 1) * GreenArea)
                                    blue = Int(FillStartColor / &H10000) + Int((i - itemRect.Left) / (itemRect.Right - itemRect.Left + 1) * BlueArea)
                                    hPen = CreatePen(PS_SOLID, 1, RGB(red, green, blue))
                                    Call SelectObject(.hdc, hPen)
                                    Call MoveToEx(.hdc, i, itemRect.Top, 0)
                                    Call LineTo(.hdc, i, itemRect.Bottom)
                                    Call DeleteObject(hPen)
                                Next i
                                
                            Case ISFS_VERTICALCOLOR                         ' 垂直渐变色
                                
                                BlueArea = Int(FillEndColor / &H10000) - Int(FillStartColor / &H10000)
                                GreenArea = (Int(FillEndColor / &H100) And &HFF) - (Int(FillStartColor / &H100) And &HFF)
                                RedArea = (FillEndColor And &HFF) - (FillStartColor And &HFF)
                                
                                For i = itemRect.Top To itemRect.Bottom - 1
                                    red = Int(FillStartColor And &HFF) + Int((i - itemRect.Top) / (itemRect.Bottom - itemRect.Top + 1) * RedArea)
                                    green = (Int(FillStartColor / &H100) And &HFF) + Int((i - itemRect.Top) / (itemRect.Bottom - itemRect.Top + 1) * GreenArea)
                                    blue = Int(FillStartColor / &H10000) + Int((i - itemRect.Top) / (itemRect.Bottom - itemRect.Top + 1) * BlueArea)
                                    hPen = CreatePen(PS_SOLID, 1, RGB(red, green, blue))
                                    Call SelectObject(.hdc, hPen)
                                    Call MoveToEx(.hdc, itemRect.Left, i, 0)
                                    Call LineTo(.hdc, itemRect.Right, i)
                                    Call DeleteObject(hPen)
                                Next i
                                
                            Case ISFS_SOLIDCOLOR                            ' 实色填充
                                
                                hPen = CreatePen(PS_SOLID, 0, FillStartColor)
                                hBrush = CreateSolidBrush(FillStartColor)
                                SelectObject .hdc, hPen
                                SelectObject .hdc, hBrush
                                Rectangle .hdc, itemRect.Left, itemRect.Top, itemRect.Right, itemRect.Bottom
                                DeleteObject hPen
                                DeleteObject hBrush
                        
                        End Select
                        
                        
                        ' 画菜单项文字
                        SetTextColor .hdc, TextSelectColor
                        DrawText .hdc, MyItemInfo(.itemID).itemText, -1, textRect, DT_SINGLELINE Or DT_LEFT Or DT_VCENTER
                        
                        
                        ' 画菜单项图标
                        If MyItemInfo(.itemID).itemType <> MIT_CHECKBOX Then
                            DrawIconEx .hdc, iconRect.Left + 2, iconRect.Top + (iconRect.Bottom - iconRect.Top + 1 - 16) / 2, MyItemInfo(.itemID).itemIcon, 16, 16, 0, 0, DI_NORMAL
                            Select Case IconStyle
                                Case IIS_NONE                                               ' 无效果
                                
                                Case IIS_SUNKEN                                             ' 凹进
                                    If MyItemInfo(.itemID).itemIcon <> 0 Then
                                        DrawEdge .hdc, iconRect, BDR_SUNKENOUTER, BF_RECT
                                    End If
                                Case IIS_RAISED                                             ' 凸起
                                    If MyItemInfo(.itemID).itemIcon <> 0 Then
                                        DrawEdge .hdc, iconRect, BDR_RAISEDINNER, BF_RECT
                                    End If
                                Case IIS_SHADOW                                             ' 阴影
                                    hBrush = CreateSolidBrush(RGB(128, 128, 128))
                                    DrawState .hdc, hBrush, 0, MyItemInfo(.itemID).itemIcon, 0, iconRect.Left + 3, iconRect.Top + (iconRect.Bottom - iconRect.Top + 1 - 16) / 2 + 1, 0, 0, DST_ICON Or DSS_MONO
                                    DeleteObject hBrush
                                    DrawIconEx .hdc, iconRect.Left + 1, iconRect.Top + (iconRect.Bottom - iconRect.Top + 1 - 16) / 2 - 1, MyItemInfo(.itemID).itemIcon, 16, 16, 0, 0, DI_NORMAL
                            End Select
                        Else
                            ' CHECKBOX型菜单项图标效果
                            If MyItemInfo(.itemID).itemState And MIS_CHECKED Then
                                DrawIconEx .hdc, iconRect.Left + 2, iconRect.Top + (iconRect.Bottom - iconRect.Top + 1 - 16) / 2, MyItemInfo(.itemID).itemIcon, 16, 16, 0, 0, DI_NORMAL
                            End If
                        End If
                    
                    Else                                                        ' 当鼠标移开菜单项时
                        
                        ' 画菜单项边框和背景(清除)
                        If BarStyle <> LBS_NONE Then
                            itemRect.Left = barRect.Right + 1
                        Else
                            itemRect.Left = 0
                        End If
                        hBrush = CreateSolidBrush(BkColor)
                        FillRect .hdc, itemRect, hBrush
                        DeleteObject hBrush
                        
                        
                        ' 画菜单项文字
                        SetTextColor .hdc, TextEnabledColor
                        DrawText .hdc, MyItemInfo(.itemID).itemText, -1, textRect, DT_SINGLELINE Or DT_LEFT Or DT_VCENTER
                        
                        
                        ' 画菜单项图标
                        If MyItemInfo(.itemID).itemType <> MIT_CHECKBOX Then
                            DrawIconEx .hdc, iconRect.Left + 2, iconRect.Top + (iconRect.Bottom - iconRect.Top + 1 - 16) / 2, MyItemInfo(.itemID).itemIcon, 16, 16, 0, 0, DI_NORMAL
                        Else
                            If MyItemInfo(.itemID).itemState And MIS_CHECKED Then
                                DrawIconEx .hdc, iconRect.Left + 2, iconRect.Top + (iconRect.Bottom - iconRect.Top + 1 - 16) / 2, MyItemInfo(.itemID).itemIcon, 16, 16, 0, 0, DI_NORMAL
                            End If
                        End If
                    
                    End If
                Else                                                                 ' 当菜单项不可用时
                    
                    ' 画菜单项文字
                    SetTextColor .hdc, TextDisabledColor
                    DrawText .hdc, MyItemInfo(.itemID).itemText, -1, textRect, DT_SINGLELINE Or DT_LEFT Or DT_VCENTER
                    
                    ' 画菜单项图标
                    If MyItemInfo(.itemID).itemType <> MIT_CHECKBOX Then
                        DrawState .hdc, 0, 0, MyItemInfo(.itemID).itemIcon, 0, iconRect.Left + 2, iconRect.Top + (iconRect.Bottom - iconRect.Top + 1 - 16) / 2, 0, 0, DST_ICON Or DSS_DISABLED
                    Else
                        If MyItemInfo(.itemID).itemState And MIS_CHECKED Then
                            DrawState .hdc, 0, 0, MyItemInfo(.itemID).itemIcon, 0, iconRect.Left + 2, iconRect.Top + (iconRect.Bottom - iconRect.Top + 1 - 16) / 2, 0, 0, DST_ICON Or DSS_DISABLED
                        End If
                    End If
                    
                End If
            End If
            
        End With
    End If
End Sub

' 菜单项事件响应(单击菜单项)
Private Sub MenuItemSelected(ByVal itemID As Long)
    Debug.Print "鼠标单击了：" & MyItemInfo(itemID).itemText
    Select Case MyItemInfo(itemID).itemAlias
        Case "exit"
            Dim frm As Form
            For Each frm In Forms
                Unload frm
            Next
    End Select
End Sub

' 菜单项事件响应(选择菜单项)
Private Sub MenuItemSelecting(ByVal itemID As Long)
    Debug.Print "鼠标移动到：" & MyItemInfo(itemID).itemText
End Sub