References ▼
This callback function is called repeatedly by the L_OptOptimizeBuffer function to notify the user of the percentage of the optimization operation that has been completed. The callback function is called for every 1% of optimization that is completed.
#include "l_bitmap.h"
L_INT pEXT_CALLBACK YourFunction (nPercent, pUserData)
An integer from 0 to 100 that indicates the completion percentage of the buffer optimization operation.
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 L_OptOptimizeBuffer function. (This is the same pointer that you pass in the pUserData parameter of L_OptOptimizeBuffer function.)
Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function.
| Value | Meaning |
|---|---|
| SUCCESS | The function was successful. |
| <1 | An error occurred. Refer to Return Codes. |
If the callback function returns a failure, the L_OptOptimizeBuffer will terminate and return the same error that the callback returned.
For an example, refer to L_OptOptimizeBuffer.
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