Public Overloads Sub GetRowCompressed( _
   ByVal workBuffer As IntPtr, _
   ByVal runBuffer As IntPtr, _
   ByVal row As Integer, _
   ByVal lines As Integer _
) 

Visual Basic (Usage)	Copy Code
Dim instance As RasterImage Dim workBuffer As IntPtr Dim runBuffer As IntPtr Dim row As Integer Dim lines As Integer   instance.GetRowCompressed(workBuffer, runBuffer, row, lines)

public void GetRowCompressed( 
   IntPtr workBuffer,
   IntPtr runBuffer,
   int row,
   int lines
)

public: void GetRowCompressed( 
   IntPtr workBuffer,
   IntPtr runBuffer,
   int row,
   int lines
) 

public:
void GetRowCompressed( 
   IntPtr workBuffer,
   IntPtr runBuffer,
   int row,
   int lines
) 

Parameters

workBuffer

Pointer to optional work unmanaged memory buffer. Allocating the work buffer speeds processing if you call this method more than once, because if you do not allocate a work buffer, the method allocates and frees a temporary buffer each time it is called. bytes required = lines * ((Width + 3) * 2). Pass IntPtr.Zero for workBuffer if you do not want to use the work buffer

runBuffer

Pointer to the output unmanaged memory buffer, which will be filled with 1-bit compressed image data.

row

The number of the row to retrieve. The first row is 0, and the last row is 1 less than the image height.

lines

Number of rows to retrieve.

This method is available in the (Document/Medical only) Toolkits.

This method is useful for working with 1-bit images that are loaded in their compressed formats for faster loading and display.

For more information, refer to Speeding Up 1-Bit Documents.

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

Reference