mdlpublic.bas

一个简单的快餐店收银软件

Attribute VB_Name = "mdlPublic"
Public Type DOCINFO
pDocName As String
pOutputFile As String
pDatatype As String
End Type
Public Declare Function ClosePrinter Lib "winspool.drv" (ByVal _
hPrinter As Long) As Long
Public Declare Function EndDocPrinter Lib "winspool.drv" (ByVal _
hPrinter As Long) As Long
Public Declare Function EndPagePrinter Lib "winspool.drv" (ByVal _
hPrinter As Long) As Long
Public Declare Function OpenPrinter Lib "winspool.drv" Alias _
"OpenPrinterA" (ByVal pPrinterName As String, phPrinter As Long, _
ByVal pDefault As Long) As Long
Public Declare Function StartDocPrinter Lib "winspool.drv" Alias _
"StartDocPrinterA" (ByVal hPrinter As Long, ByVal Level As Long, _
pDocInfo As DOCINFO) As Long
Public Declare Function StartPagePrinter Lib "winspool.drv" (ByVal _
hPrinter As Long) As Long
Public Declare Function WritePrinter Lib "winspool.drv" (ByVal _
hPrinter As Long, pBuf As Any, ByVal cdBuf As Long, _
pcWritten As Long) As Long

'使MSHFlexGrid支持鼠标滚动
'将以下代码写到公共模块中

'支持滚轮鼠标API---------------------------------
    Public Const GWL_WNDPROC = (-4)
    Public Const WM_COMMAND = &H111
    Public Const WM_MBUTTONDOWN = &H207
    Public Const WM_MBUTTONUP = &H208
    Public Const WM_MOUSEWHEEL = &H20A
    
    Public Oldwinproc 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 Function FlexScroll(ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
'支持滚轮的滚动
    Select Case wMsg
    Case WM_MOUSEWHEEL
        Select Case wParam
        Case -7864320  '向下滚
            SendKeys "{Down}"
        Case 7864320   '向上滚
            SendKeys "{Up}"
        End Select
                 
    End Select
    FlexScroll = CallWindowProc(Oldwinproc, hWnd, wMsg, wParam, lParam)
End Function
'支持滚轮鼠标API---------------------------------
'将下列代码写到表格控件的GotFocus事件中
'Private Sub mshfView_GotFocus()
'    Oldwinproc = GetWindowLong(Me.hWnd, GWL_WNDPROC)
'    SetWindowLong Me.hWnd, GWL_WNDPROC, AddressOf FlexScroll
'End Sub
'将下列代码写到表格控件的LostFocus事件中
'Private Sub mshfView_LostFocus()
'    SetWindowLong Me.hWnd, GWL_WNDPROC, Oldwinproc
'End Sub