LEADTOOLS Raster Imaging C DLL Help
| LEADTOOLS Raster Imaging C DLL Help > Function References > Callback Functions > SMOOTHCALLBACK Function |
#include "l_bitmap.h"
L_INT pEXT_CALLBACK Your Function(uBumpOrNick, iStartRow, iStartCol, iLength, uHorV, pUserData)
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L_UINT uBumpOrNick; |
/* flag */ |
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L_INT iStartRow; |
/* starting row */ |
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L_INT iStartCol; |
/* starting column */ |
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L_INT iLength; |
/* length */ |
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L_UINT uHorV; |
/* flag */ |
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L_VOID *pUserData; |
/* pointer to additional parameters */ |
Handles each bump or nick found by L_SmoothBitmap.
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Parameter |
Description |
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uBumpOrNick |
Flag that indicates whether to remove bumps or fill in nicks. Possible values are: |
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Value |
Meaning |
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SMOOTH_NONE |
Do nothing. |
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SMOOTH_BUMP |
Remove a bump. |
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SMOOTH_NICK |
Fill in a nick. |
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iStartRow |
The starting row of the bump or nick. The rows are zero-based. |
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iStartCol |
The starting column of the bump or nick. The columns are zero-based. |
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iLength |
Length (in pixels) of the bump or nick. |
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uHorV |
Flag that indicates whether the element being smoothed is vertical or horizontal. Possible values are: |
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Value |
Meaning |
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SMOOTH_HORIZONTAL_ELEMENT |
A horizontal bump or nick |
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SMOOTH_VERTICAL_ELEMENT |
A vertical bump or nick |
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pUserData |
A void pointer that you can use to access a variable or structure containing data that your callback function needs. This gives you a way to receive data indirectly from the function that uses this callback function. (This is the same pointer that you pass in the pUserData parameter of L_SmoothBitmap). |
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Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function. |
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Returns
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SUCCESS_REMOVE |
Remove the bump or nick. |
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SUCCESS_NOREMOVE |
Do not remove the bump or nick. |
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Otherwise |
An error occurred. Refer to Return Codes. |
Comments
The callback is called for each bump and nick found. Return SUCCESS_REMOVE to have the bump or nick removed. Return SUCCESS_NOREMOVE to leave the bump or nick unchanged. Pass any other value to abort. This value will be the return value of the L_SmoothBitmap(). If flags SMOOTH_IMAGE_UNCHANGED and SMOOTH_SINGLE_REGION are being used, then the return value of the callback affects only the internal single region that contains all the changes.
Required DLLs and Libraries
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LTIMGCOR 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 L_SmoothBitmap.
