范围类的 CopyPicture 方法失败 - 有时 [英] CopyPicture method of range class failed - sometimes

问题描述

我有一个 VBA 代码，我用它来将范围复制为图片并将它们粘贴到图表中.它这样做，所以我可以将它保存到图片中.这段代码有 70% 的成功率，当它不起作用时，它会给出错误范围类的 CopyPicture 方法失败".我不明白为什么它有时可以工作，有时却没有考虑到它采用相同的输入.

I have a VBA code which I am using to copy ranges as a picture and paste them into a chart. It does this so I can save it into a picture. This code has like a 70% success rate, and when it doesn't work, it gives out the error "CopyPicture method of range class failed". I don't understand why it can sometimes work and sometimes doesn't given that it is taking the same inputs.

有人可以帮忙吗?

Public Sub ExportRange(workbookPath As String, sheetName As String, rangeString As String, savepath As String)

    Set tempWorkBook = Workbooks.Open(workbookPath)

    Dim selectRange As range
    Set selectRange = Worksheets(sheetName).range(rangeString)
    Dim numRows As Long
    numRows = selectRange.Rows.Count
    Dim numCols As Long
    numCols = selectRange.Columns.Count

    ' Transfer selection to a new sheet and autofit the columns
    selectRange.Copy
    Dim tempSheet As Worksheet
    Set tempSheet = Sheets.Add
    tempSheet.range("A1").PasteSpecial xlPasteAll

    ActiveSheet.UsedRange.Columns.AutoFit
    Set selectRange = ActiveSheet.UsedRange
    selectRange.Select
    selectRange.CopyPicture xlScreen, xlPicture

    Dim tempSheet2 As Worksheet
    Set tempSheet2 = Sheets.Add
    Dim oChtobj As Excel.ChartObject
    Set oChtobj = tempSheet2.ChartObjects.Add( _
        selectRange.Left, selectRange.Top, selectRange.Width, selectRange.Height)

    Dim oCht As Excel.Chart
    Set oCht = oChtobj.Chart
    oCht.Paste
    oCht.Export filename:=savepath
    oChtobj.Delete

    Application.DisplayAlerts = False
    tempSheet.Delete
    tempSheet2.Delete
    tempWorkBook.Close
    Application.DisplayAlerts = True

End Sub

推荐答案

我找到了一种方法，可以强制 excel 等到剪贴板中有图片时，因为有时它太快了:

i have found a way to force excel to wait until the clipboard has a picture in it, because sometimes it's too fast:

Private Declare PtrSafe Function IsClipboardFormatAvailable Lib "user32" (ByVal wFormat As Long) As Long
Declare PtrSafe Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long) 

'just after copypicture, add this: (in my case i added it inside pastepicture, or i'd have too much coding )
Dim T#
  Do
      Waiting (2)
Loop Until IsClipboardFormatAvailable(2) Or Timer - T > 0.3

Sub Waiting(ByVal Mili_Seconds&)
Sleep Mili_Seconds
End Sub

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