如何实现Picture的打印

可以参考
http://www.vbwm.com/forums/topic.asp?TOPIC_ID=3961
-------------------------------------------Originally posted by AllenHow to print a picture box image to a printer. Example download is available below.
-----------------------------------------------------------------------------------'Create an invisible picture control on your form (called Picture2 below), then paste in the code below onto your Form:Option Explicit
Private Declare Function SendMessage Lib "user32" Alias _
                       "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, _
                        ByVal wParam As Long, ByVal lParam As Long) As LongPrivate Const twipFactor = 1440
Private Const WM_PAINT = &HF
Private Const WM_PRINT = &H317
Private Const PRF_CLIENT = &H4&    ' Draw the window's client area.
Private Const PRF_CHILDREN = &H10& ' Draw all visible child windows.
Private Const PRF_OWNED = &H20&    ' Draw all owned windowsPrivate Sub PrintDiagram(CurrPicture As PictureBox, xp As Single, yp As Single, _
                         pcWidth As Single, pcHeight As Single)
Dim rv As LongWith Picture2
   .Top = 0
   .Left = 0
   .Width = CurrPicture.Width
   .Height = CurrPicture.Height
End WithPicture2.AutoRedraw = True
rv = SendMessage(CurrPicture.hWnd, WM_PAINT, Picture2.hDC, 0)
rv = SendMessage(CurrPicture.hWnd, WM_PRINT, Picture2.hDC, PRF_CHILDREN + PRF_CLIENT + PRF_OWNED)Picture2.Picture = Picture2.Image
Picture2.AutoRedraw = False
Printer.PaintPicture Picture2.Picture, xp * twipFactor, yp * twipFactor, _
                     pcWidth * twipFactor, pcHeight * twipFactor
End Sub
'Then call the PrintDiagram sub supplied with:
' the object name of the picture you want to print                (Picture1 in the example below)
' and the upper left point coordinate of where on the page to print  (1,3.5 in the example below)
' and the width and height of the picture to be printed on the printer (6,3 in the example below)Private Sub Command1_Click()
PrintDiagram Picture1, 1, 3.5, 6, 3
End SubPrivate Sub Form_Load()
Picture1.ScaleLeft = -200
End SubPrivate Sub Picture1_Click()
Static cx As Long
Picture1.CurrentX = cx
Picture1.Print "teeesssst"
cx = cx + 200
End Sub
http://www.china-askpro.com/msg2/qa05.shtml如何将PictureBox中的图形与控件一起转换为BMP图

     下面的方法实际上是抓取屏幕图象的方法。
    如果要得到一个PictureBox中的图形（不包括覆盖在其上的控件），可以使用SavePicture Picture1.Picture "c:\test.bmp"语句将图形存盘。这种方法不管整个图形部分是否可见，都可以保存下来。
    如果要包括覆盖在其上的控件，可以用下面的办法：
    首先建立一个模块，输入以下内容：
    Private Type PALETTEENTRY
     peRed As Byte
     peGreen As Byte
     peBlue As Byte
     peFlags As Byte
    End Type

    Private Type LOGPALETTE
     palVersion As Integer
     palNumEntries As Integer
     palPalEntry(255) As PALETTEENTRY ' Enough for 256 colors.
    End Type

    Private Type GUID
     Data1 As Long
     Data2 As Integer
     Data3 As Integer
     Data4(7) As Byte
    End Type

    #If Win32 Then

     Private Const RASTERCAPS As Long = 38
     Private Const RC_PALETTE As Long = &H100
     Private Const SIZEPALETTE As Long = 104

     Private Type RECT
     Left As Long
     Top As Long
     Right As Long
     Bottom As Long
     End Type

     Private Declare Function CreateCompatibleDC Lib "GDI32" ( _
     ByVal hDC As Long) As Long
     Private Declare Function CreateCompatibleBitmap Lib "GDI32" ( _
     ByVal hDC As Long, ByVal nWidth As Long, _
     ByVal nHeight As Long) As Long
     Private Declare Function GetDeviceCaps Lib "GDI32" ( _
     ByVal hDC As Long, ByVal iCapabilitiy As Long) As Long
     Private Declare Function GetSystemPaletteEntries Lib "GDI32" ( _
     ByVal hDC As Long, ByVal wStartIndex As Long, _
     ByVal wNumEntries As Long, lpPaletteEntries As PALETTEENTRY) _
     As Long
     Private Declare Function CreatePalette Lib "GDI32" ( _
     lpLogPalette As LOGPALETTE) As Long
     Private Declare Function SelectObject Lib "GDI32" ( _
     ByVal hDC As Long, ByVal hObject As Long) As Long
     Private Declare Function BitBlt Lib "GDI32" ( _
     ByVal hDCDest As Long, ByVal XDest As Long, _
     ByVal YDest As Long, ByVal nWidth As Long, _
     ByVal nHeight As Long, ByVal hDCSrc As Long, _
     ByVal XSrc As Long, ByVal YSrc As Long, ByVal dwRop As Long) _
     As Long
     Private Declare Function DeleteDC Lib "GDI32" ( _
     ByVal hDC As Long) As Long
     Private Declare Function GetForegroundWindow Lib "USER32" () _
     As Long
     Private Declare Function SelectPalette Lib "GDI32" ( _
     ByVal hDC As Long, ByVal hPalette As Long, _
     ByVal bForceBackground As Long) As Long
     Private Declare Function RealizePalette Lib "GDI32" ( _
     ByVal hDC As Long) As Long
     Private Declare Function GetWindowDC Lib "USER32" ( _
     ByVal hWnd As Long) As Long
     Private Declare Function GetDC Lib "USER32" ( _
     ByVal hWnd As Long) As Long
     Private Declare Function GetWindowRect Lib "USER32" ( _
     ByVal hWnd As Long, lpRect As RECT) As Long
     Private Declare Function ReleaseDC Lib "USER32" ( _
     ByVal hWnd As Long, ByVal hDC As Long) As Long
     Private Declare Function GetDesktopWindow Lib "USER32" () As Long

     Private Type PicBmp
     Size As Long
     Type As Long
     hBmp As Long
     hPal As Long
     Reserved As Long
     End Type

     Private Declare Function OleCreatePictureIndirect _
     Lib "olepro32.dll" (PicDesc As PicBmp, RefIID As GUID, _
     ByVal fPictureOwnsHandle As Long, IPic As IPicture) As Long

    #ElseIf Win16 Then

     Private Const RASTERCAPS As Integer = 38
     Private Const RC_PALETTE As Integer = &H100
     Private Const SIZEPALETTE As Integer = 104

     Private Type RECT
     Left As Integer
     Top As Integer
     Right As Integer
     Bottom As Integer
     End Type

     Private Declare Function CreateCompatibleDC Lib "GDI" ( _
     ByVal hDC As Integer) As Integer
     Private Declare Function CreateCompatibleBitmap Lib "GDI" ( _
     ByVal hDC As Integer, ByVal nWidth As Integer, _
     ByVal nHeight As Integer) As Integer
     Private Declare Function GetDeviceCaps Lib "GDI" ( _
     ByVal hDC As Integer, ByVal iCapabilitiy As Integer) As Integer
     Private Declare Function GetSystemPaletteEntries Lib "GDI" ( _
     ByVal hDC As Integer, ByVal wStartIndex As Integer, _
     ByVal wNumEntries As Integer, _
     lpPaletteEntries As PALETTEENTRY) As Integer
     Private Declare Function CreatePalette Lib "GDI" ( _
     lpLogPalette As LOGPALETTE) As Integer
     Private Declare Function SelectObject Lib "GDI" ( _
     ByVal hDC As Integer, ByVal hObject As Integer) As Integer
     Private Declare Function BitBlt Lib "GDI" ( _
     ByVal hDCDest As Integer, ByVal XDest As Integer, _
     ByVal YDest As Integer, ByVal nWidth As Integer, _
     ByVal nHeight As Integer, ByVal hDCSrc As Integer, _
     ByVal XSrc As Integer, ByVal YSrc As Integer, _
     ByVal dwRop As Long) As Integer
     Private Declare Function DeleteDC Lib "GDI" ( _
     ByVal hDC As Integer) As Integer
     Private Declare Function GetForegroundWindow Lib "USER" _
     Alias "GetActiveWindow" () As Integer
     Private Declare Function SelectPalette Lib "USER" ( _
     ByVal hDC As Integer, ByVal hPalette As Integer, ByVal _
     bForceBackground As Integer) As Integer
     Private Declare Function RealizePalette Lib "USER" ( _
     ByVal hDC As Integer) As Integer
     Private Declare Function GetWindowDC Lib "USER" ( _
     ByVal hWnd As Integer) As Integer
     Private Declare Function GetDC Lib "USER" ( _
     ByVal hWnd As Integer) As Integer
     Private Declare Function GetWindowRect Lib "USER" ( _
     ByVal hWnd As Integer, lpRect As RECT) As Integer
     Private Declare Function ReleaseDC Lib "USER" ( _
     ByVal hWnd As Integer, ByVal hDC As Integer) As Integer
     Private Declare Function GetDesktopWindow Lib "USER" () As Integer

     Private Type PicBmp
     Size As Integer
     Type As Integer
     hBmp As Integer
     hPal As Integer
     Reserved As Integer
     End Type

     Private Declare Function OleCreatePictureIndirect _
     Lib "oc25.dll" (PictDesc As PicBmp, RefIID As GUID, _
     ByVal fPictureOwnsHandle As Integer, IPic As IPicture) _
     As Integer
    #End If
    #If Win32 Then
     Public Function CaptureWindow(ByVal hWndSrc As Long, _
     ByVal Client As Boolean, ByVal LeftSrc As Long, _
     ByVal TopSrc As Long, ByVal WidthSrc As Long, _
     ByVal HeightSrc As Long) As Picture

     Dim hDCMemory As Long
     Dim hBmp As Long
     Dim hBmpPrev As Long
     Dim r As Long
     Dim hDCSrc As Long
     Dim hPal As Long
     Dim hPalPrev As Long
     Dim RasterCapsScrn As Long
     Dim HasPaletteScrn As Long
     Dim PaletteSizeScrn As Long
    #ElseIf Win16 Then
     Public Function CaptureWindow(ByVal hWndSrc As Integer, _
     ByVal Client As Boolean, ByVal LeftSrc As Integer, _
     ByVal TopSrc As Integer, ByVal WidthSrc As Long, _
     ByVal HeightSrc As Long) As Picture

     Dim hDCMemory As Integer
     Dim hBmp As Integer
     Dim hBmpPrev As Integer
     Dim r As Integer
     Dim hDCSrc As Integer
     Dim hPal As Integer
     Dim hPalPrev As Integer
     Dim RasterCapsScrn As Integer
     Dim HasPaletteScrn As Integer
     Dim PaletteSizeScrn As Integer
    #End If
     Dim LogPal As LOGPALETTE

     ' Depending on the value of Client get the proper device context.
     If Client Then
     hDCSrc = GetDC(hWndSrc) ' Get device context for client area.
     Else
     hDCSrc = GetWindowDC(hWndSrc) ' Get device context for entire
     ' window.
     End If

...... 略

调试易

如何实现Picture的打印

解决方案 »