The LEADTOOLS C++ Class Library is a wrapper to the LEADTOOLS C API and provides only a subset of the features and functionality otherwise available in the LEADTOOLS C API. For more information about the full feature set of the LEADTOOLS C API, refer to LEADTOOLS C API Introduction.
Is this page helpful?
Called for each dot found by LBitmap::DotRemove.
#include "ltwrappr.h"
virtual L_INT LBitmap::DotRemoveCallBack(hRgn, pBoundingRect, iWhiteCount, iBlackCount)
Windows region representing the dot to be removed. It is the programmer's responsibility to delete this region (using DeleteObject()) when it is no longer needed.
Pointer to a PRECT structure that contains the bounding rectangle of the dot being processed.
Total number of white pixels in the dot being processed.
Total number of black pixels in the dot being processed.
Value | Meaning |
---|---|
SUCCESS_REMOVE | Remove the dot. |
SUCCESS_NOREMOVE | Do not remove the dot. |
Otherwise | An error occurred. Refer to Return Codes. |
This function is called once for each dot, speck, or blob that is detected Return SUCCESS_REMOVE to have the dot removed. Return SUCCESS_NOREMOVE to leave the dot unchanged. Pass any other value to abort. This value will be the return value of the LBitmap::DotRemove(). If DOT_IMAGE_UNCHANGED and DOT_SINGLE_REGION are being used, then the return value of this function affects only the internal single region that contains all the changes.
Win32, x64.
For an example, refer to LBitmap::DotRemove.
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
Document .NET | C API | C++ Class Library | HTML5 JavaScript
Medical .NET | C API | C++ Class Library | HTML5 JavaScript
Medical Web Viewer .NET
Multimedia
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms
Supported Platforms
.NET, Java, Android, and iOS/macOS Assemblies
Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document