在Form中添加一个Picture控件和一个CommandButton控件,在Picture控件中加入一个位图文件,将下面代码加入其中:
Private Declare Function GetObject Lib "gdi32" Alias "GetObjectA" _(ByVal hObject As Long, ByVal nCount As Long, lpObject As Any) _As LongPrivate Declare Function GetBitmapBits Lib "gdi32" (ByVal hBitmap As Long, _ByVal dwCount As Long, lpBits As Any) As LongPrivate Type BITMAP bmType As Long bmWidth As Long bmHeight As Long bmWidthBytes As Long bmPlanes As Integer bmBitsPixel As Integer bmBits As LongEnd TypePrivate Sub Command1_Click() Dim hBitmap As Long Dim res As Long Dim bmp As BITMAP Dim byteAry() As Byte Dim totbyte As Long, i As Long hBitmap = Picture1.Picture.Handle res = GetObject(hBitmap, Len(bmp), bmp)
'取得BITMAP的结构
totbyte = bmp.bmWidthBytes * bmp.bmHeight
'总共要多少BYTE来存图
ReDim byteAry(totbyte - 1)
'将Picture1中的图信息存到ByteAry
res = GetBitmapBits(hBitmap, totbyte, byteAry(0)) Debug.Print "Total Bytes Copied :"; res Debug.Print "bmp.bmBits "; bmp.bmBits Debug.Print "bmp.bmBitsPixel "; bmp.bmBitsPixel
'每相素位数
Debug.Print "bmp.bmHeight "; bmp.bmHeight
'以相素计算图象高度
Debug.Print "bmp.bmPlanes "; bmp.bmPlanes Debug.Print "bmp.bmType "; bmp.bmType Debug.Print "bmp.bmWidth "; bmp.bmWidth
'以相素计算图形宽度
Debug.Print "bmp.bmWidthBytes "; bmp.bmWidthBytes
'以字节计算的每扫描线长度
End Sub
