LBitmap::HolePunchRemoveCallBack
#include "ltwrappr.h"
virtual L_INT LBitmap::HolePunchRemoveCallBack(hRgn, pBoundingRect, iHoleIndex, iHoleTotalCount, iWhiteCount, iBlackCount)
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HRGN hRgn; |
/* windows region */ |
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PRECT pBoundingRect; |
/* pointer to a RECT structure */ |
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L_INT32 iHoleIndex; |
/* index value */ |
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L_INT32 iHoleTotalCount; |
/* total number of holes */ |
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L_INT32 iWhiteCount; |
/* number of white pixels */ |
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L_INT32 iBlackCount; |
/* number of black pixels */ |
Called for each hole punch found by LBitmap::HolePunchRemove. This function is available in the Document/Medical Toolkits.
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Parameter |
Description |
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hRgn |
Windows region representing one of the holes of the hole punch pattern. It is the programmers responsibility to delete this region (using DeleteObject())when it is no longer needed. |
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pBoundingRect |
Pointer to a RECT structure that contains the bounding rectangle of one of the holes in a hole punch pattern. |
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iHoleIndex |
Index of the hole within a hole punch pattern. The holes are numbered from 1 to n, where n is the total number of holes in the hole punch pattern. |
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iHoleTotalCount |
The total number of holes that make up the hole punch pattern. This value will not change for a particular call to LBitmap::HolePunchRemove(). |
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iWhiteCount |
Total number of white pixels in one of the holes of a hole punch pattern. |
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iBlackCount |
Total number of black pixels in one of the holes of a hole punch pattern. |
Returns
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SUCCESS_REMOVE |
Remove the hole. |
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SUCCESS_NOREMOVE |
Do not remove the hole. |
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Otherwise |
An error occurred. Refer to Return Codes. |
Comments
This function is called once for each occurring hole in the hole punch configuration. For example, if there are three holes, the callback gets called three times. Return SUCCESS_REMOVE to have a particular hole removed. Return SUCCESS_NOREMOVE to leave the hole unchanged. Pass any other value to abort. This value will be the return value of the LBitmap::HolePunchRemove(). If HOLEPUNCH_IMAGE_UNCHANGED and HOLEPUNCH_SINGLE_REGION are being used, then the return value of this function affects only the internal single region that contains all the changes.
Required DLLs and Libraries
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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
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Functions: |
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Topics: |
Example
For an example, refer to LBitmap::HolePunchRemove.