LBitmap::SliceCallBack
#include "ltwrappr.h"
virtual L_INT LBitmap::SliceCallBack(Bitmap, lpSliceRect, nAngle)
LBitmapBase &Bitmap; |
/* pointer to the bitmap */ |
LPRECT lpSliceRect; |
/* pointer to the bounding rectangle of the extracted slice */ |
L_INT nAngle; |
/* deskew angle */ |
Handles each slice segment found by the LBitmap::Slice function.
Parameter |
Description |
Bitmap |
Optional parameter that points to the bitmap handle referencing the sliced bitmaps. It is the programmer's responsibility to free this bitmap (using LBitmapBase::Free, and GlobalFree(pBitmap)) when it is no longer needed. This parameter is updated only if SLC_CUTSLICES flag of the SLICEBITMAPOPTIONS structure is used, else it will be NULL. |
lpSliceRect |
Pointer to a RECT structure that contains the bounding rectangle of the extracted slice. |
nAngle |
Deskew angle. The amount of rotation is expressed in hundredths of degrees. For example, 500 means 5 degrees clockwise. |
Returns
>0 |
Continue the process. |
-1 |
Stop the process and return the specified error code. Refer to Return Codes. |
Comments
Please note that the slice functionality is not currently supported in the Class Library. However, this functionality can be implemented by calling the API function directly. For a code sample that indicates how to call the API function from your code, refer to LBitmap::Slice.
The callback is called once for each slice that is detected. Return a positive number to continue the process. Return a negative number to abort.
Required DLLs and Libraries
LTIMG For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
See Also
Functions: |
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Topics: |
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Raster Image Functions: Creating and Maintaining Lists of Images |
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Example
For an example, refer to LBitmap::Slice.