PICTURIZECALLBACK Function
#include "l_bitmap.h"
L_INT pEXT_CALLBACK YourFunction (pCellBitmap, x, y, pUserData)
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pBITMAPHANDLE pCellBitmap; |
/* pointer to the bitmap handle */ |
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L_INT x; |
/* x coordinate */ |
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L_INT y; |
/* y coordinate */ |
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/* pointer to additional parameters */ |
This callback is called every time the best match is found to replace the rectangle starting at (x, y) in the original bitmap.
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Parameter |
Description |
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pCellBitmap |
The pointer to the bitmap handle referencing the bitmap that will be placed in the position starting at (x, y). Do not delete or change this bitmap in any way. |
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X |
X coordinate (column) where the new bitmap has been placed. |
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Y |
Y coordinate (row) where the new bitmap has been placed. |
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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 the calling function.) |
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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. |
Returns
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SUCCESS |
The function was successful. |
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< 1 |
An error occurred. Refer to Return Codes. |
Comments
This is an optional callback function for additional processing. For more information, refer to L_PicturizeBitmap.
Example
For an example, refer to L_PicturizeBitmap.