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获取BMP,JPG文件的宽和高

2011-01-07 14:37:37| 分类： ABAP应用 | 标签： |举报 |字号大中小订阅

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data: file_tab  type standard table of x255 ,
      width     type i,
      height    type i,
      filelen   type i,
      xstr      type xstring,
      str       type string,
      off       type i,
      moff      type i,
      mlen      type i,
      mod       type i ,
      file_off  type i.

start-of-selection.
  call function 'GUI_UPLOAD'
    exporting
      filename   = 'C:\2DOGS.JPG'
      filetype   = 'BIN'
    importing
      filelength = filelen
    tables
      data_tab   = file_tab
    exceptions
      others     = 17.

  call function 'SCMS_BINARY_TO_XSTRING'
    exporting
      input_length = filelen
    importing
      buffer       = xstr
    tables
      binary_tab   = file_tab.

  str = xstr.
  if xstr+0(2) = 'FFD8'. "JPG File
    off = 0.
    while sy-subrc = 0.
      find 'FFC0' in section offset off of str match offset moff match length mlen.
      if sy-subrc = 0.
        off = moff + mlen.
        mod = moff mod 2.
        if mod = 0.
          file_off = moff.
        endif.
      endif.
    endwhile.
    file_off  = file_off / 2 + 5 .
    height    = xstr+file_off(2).
    file_off  = file_off + 2.
    width     = xstr+file_off(2) .
    write 'JPG File'.
  elseif xstr+0(2) = '424D'. "BMP File
    width   = xstr+19(1) * 256 + xstr+18(1) .
    height  = xstr+23(1) * 256 + xstr+22(1).
    write 'bmp file'.
  else.
    write 'File type error'.
    exit.
  endif.
  write: / width no-gap, '*' ,height no-gap.

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<#--最新日志，群博日志--> <#--推荐日志-->

<p class="fc06">推荐过这篇日志的人：</p>
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<#-- 网易新闻广告 --> <#--右边模块结构--> <#--评论模块结构--> <#--引用模块结构--> <#--博主发起的投票-->

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