给楼主一个函数,转成JPG的可能比较好! '参数: ' Range - 要保存为JPG图片的单元格区域,必要参数 ' FileName - 要保存的JPG图片目标路径,必要参数 ' quality - JPG图片质量,数值越大,图片质量越高,占用字节数越多,可选参数 ' 取值范围为0-100,小于0则出现溢出错误,大于100则与100效果相同 '返回值:如果保存成功,返回True,否则返回False Option Explicit Private Type GUID Data1 As Long Data2 As Integer Data3 As Integer Data4(0 To 7) As Byte End Type Private Type GdiplusStartupInput GdiplusVersion As Long DebugEventCallback As Long SuppressBackgroundThread As Long SuppressExternalCodecs As Long End Type Private Type EncoderParameter GUID As GUID NumberOfValues As Long type As Long Value As Long End Type Private Type EncoderParameters Count As Long Parameter As EncoderParameter End Type Private Declare Function GdiplusStartup Lib "GDIPlus" (token As Long, inputbuf As GdiplusStartupInput, ByVal outputbuf As Long) As Long Private Declare Function GdiplusShutdown Lib "GDIPlus" (ByVal token As Long) As Long Private Declare Function GdipCreateBitmapFromHBITMAP Lib "GDIPlus" (ByVal hbm As Long, ByVal hpal As Long, Bitmap As Long) As Long Private Declare Function GdipDisposeImage Lib "GDIPlus" (ByVal Image As Long) As Long Private Declare Function GdipSaveImageToFile Lib "GDIPlus" (ByVal Image As Long, ByVal filename As Long, clsidEncoder As GUID, encoderParams As Any) As Long Private Declare Function CLSIDFromString Lib "ole32" (ByVal str As Long, id As GUID) As Long 'Private Declare Function GdipCreateBitmapFromFile Lib "GDIPlus" (ByVal filename As Long, Bitmap As Long) As Long Private Declare Function IsClipboardFormatAvailable Lib "user32" (ByVal wFormat As Integer) As Long Private Declare Function GetClipboardData Lib "user32" (ByVal wFormat As Integer) As Long Private Declare Function OpenClipboard Lib "user32" (ByVal hwnd As Long) As Long '剪贴板 Private Declare Function CloseClipboard Lib "user32" () As Long Const CF_BITMAP = 2 Public Function Range2JPG(Range As Range, ByVal filename As String, Optional ByVal quality As Byte = 80) As Boolean Dim tSI As GdiplusStartupInput Dim lRes As Long Dim lGDIP As Long Dim lBitmap As Long Dim hBitmap As Long '复制单元格区域图像 Range.CopyPicture xlScreen, xlBitmap '打开剪贴板 OpenClipboard 0& '获取剪贴板中bitmap数据的句柄 hBitmap = GetClipboardData(CF_BITMAP) '关闭剪贴板 CloseClipboard '初始化 GDI+ tSI.GdiplusVersion = 1 lRes = GdiplusStartup(lGDIP, tSI, 0) If lRes = 0 Then '从句柄创建 GDI+ 图像 lRes = GdipCreateBitmapFromHBITMAP(hBitmap, 0, lBitmap) If lRes = 0 Then Dim tJpgEncoder As GUID Dim tParams As EncoderParameters '初始化解码器的GUID标识 CLSIDFromString StrPtr("{557CF401-1A04-11D3-9A73-0000F81EF32E}"), tJpgEncoder '设置解码器参数 tParams.Count = 1 With tParams.Parameter ' Quality '得到Quality参数的GUID标识 CLSIDFromString StrPtr("{1D5BE4B5-FA4A-452D-9CDD-5DB35105E7EB}"), .GUID .NumberOfValues = 1 .type = 4 .Value = VarPtr(quality) End With '保存图像 lRes = GdipSaveImageToFile(lBitmap, StrPtr(filename), tJpgEncoder, tParams) '销毁GDI+图像 GdipDisposeImage lBitmap End If '销毁 GDI+ GdiplusShutdown lGDIP End If
Range2JPG = Not lRes End Function |