- 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. The size of this buffer should be the same as the image's BytesPerLine property. Pass IntPtr.Zero for workBuffer if you do not want to use the work buffer
- runBuffer
- Pointer to input unmanaged memory buffer, which contains 1-bit compressed image data.
- row
- The number of the row to update. The first row is 0, and the last row is 1 less than the image height.
- column
- The column offset within the row to update. The first column offset is 0, and the last column offset is 1 less than the image width.
- width
- The number of pixels to retrieve.
Visual Basic (Declaration) | |
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Overloads Public Function SetRowColumnCompressed( _ ByVal workBuffer As IntPtr, _ ByVal runBuffer As IntPtr, _ ByVal row As Integer, _ ByVal column As Integer, _ ByVal width As Integer _ ) As Integer |
Visual Basic (Usage) | Copy Code |
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Dim instance As RasterImage Dim workBuffer As IntPtr Dim runBuffer As IntPtr Dim row As Integer Dim column As Integer Dim width As Integer Dim value As Integer value = instance.SetRowColumnCompressed(workBuffer, runBuffer, row, column, width) |
C# | |
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public int SetRowColumnCompressed( IntPtr workBuffer, IntPtr runBuffer, int row, int column, int width ) |
C++/CLI | |
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public: int SetRowColumnCompressed( IntPtr workBuffer, IntPtr runBuffer, int row, int column, int width ) |
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. The size of this buffer should be the same as the image's BytesPerLine property. Pass IntPtr.Zero for workBuffer if you do not want to use the work buffer
- runBuffer
- Pointer to input unmanaged memory buffer, which contains 1-bit compressed image data.
- row
- The number of the row to update. The first row is 0, and the last row is 1 less than the image height.
- column
- The column offset within the row to update. The first column offset is 0, and the last column offset is 1 less than the image width.
- width
- The number of pixels to retrieve.
Return Value
The number of pixels processed.For an example, refer to GetRowColumnCompressed(Byte[],UInt16[],Int32,Int32,Int32,Int32).
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: Silverlight, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only), Windows Phone 7