LEADTOOLS Raster Imaging C DLL Help
| LEADTOOLS Raster Imaging C DLL Help > Function References > L_GetOverlayCallback |
#include "l_bitmap.h"
L_LTFIL_API L_INT L_GetOverlayCallback(ppfnCallback, ppUserData, puFlags)
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OVERLAYCALLBACK *ppfnCallback; |
/* pointer to be updated with the callback function */ |
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L_VOID** ppUserData; |
/* void pointer to be updated with user data */ |
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L_UINT* puFlags; |
/* pointer to a variable */ |
Gets the current overlay callback function, user data and flags, which were set using L_SetOverlayCallback.
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Parameter |
Description |
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ppfnCallback |
Pointer to a pointer to a callback function to be updated with the last overlay callback function set using L_SetOverlayCallback. |
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ppUserData |
Void pointer to be updated with the value of user defined data associated with the overlay callback. If you are not interested in the user-defined data, pass NULL for this parameter. |
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puFlags |
Pointer to a variable to be updated with the flags used to determine the methods to perform when loading an overlay file and the order in which to perform the methods. These were also previously set using L_SetOverlayCallback. |
Returns
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SUCCESS |
The function was successful. |
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< 1 |
An error occurred. Refer to Return Codes. |
Comments
The overlay callback set using L_SetOverlayCallback becomes the current overlay callback. To get the current overlay callback, call L_GetOverlayCallback.
Required DLLs and Libraries
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For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Platforms
Win32, x64, Linux.
See Also
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Functions: |
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Topics: |
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Example
For an example, refer to the OVERLAYCALLBACK function.
