LEADTOOLS Raster Imaging C DLL Help
| LEADTOOLS Raster Imaging C DLL Help > Function References > Callback Functions > AUTOZONECALLBACK |
#include "l_bitmap.h"
L_INT pEXT_CALLBACK YourFunction(pRect, uType, pUserData)
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L_RECT * pRect; |
/* zone rectangle */ |
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L_UINT uType; |
/* zone type */ |
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L_VOID * pUserData; |
/* pointer to additional parameters */ |
Handles each zone detected by the L_AutoZoneBitmap function.
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Parameter |
Description |
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pRect |
The rectangle that bounds the detected zone. |
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uType |
Value that determines the zone type. Possible values are: |
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Value |
Meaning |
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LEAD_ZONE_TYPE_TEXT |
[0x0000] The detected zone is a text. |
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LEAD_ZONE_TYPE_GRAPHIC |
[0x0001] The detected zone is a graphic |
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LEAD_ZONE_TYPE_TABLE |
[0x0002] The detected zone is a table. |
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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 L_AutoZoneBitmap 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. |
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Returns
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SUCCESS |
The function was successful. |
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< 1 |
An error occurred. Refer to Return Codes. |
Comments
If no zones were detected the callback will not be fired.
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: |
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Example
For an example, refer to L_AutoZoneBitmap.
