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L_GetStatusCallBack

#include "l_bitmap.h"

L_LTKRN_API STATUSCALLBACK L_GetStatusCallBack(ppUserData)

L_VOID** ppUserData;

/* void pointer to be updated with user data */

Returns a pointer to the current status callback function.

Parameter	Description
ppUserData	Void pointer to be updated with the value of user defined data associated with the status callback. If you are not interested in the user defined data, pass NULL for this parameter.

Returns

Pointer to the current status callback function.

Comments

Use this function to update a status bar and detect a user interrupt.

A status callback function can be associated with the following functions:

L_AddBitmapNoise
L_AverageFilterBitmap
L_BinaryFilterBitmap
L_ChangeBitmapContrast
L_ChangeBitmapHue
L_ChangeBitmapIntensity
L_ChangeBitmapSaturation
L_ClearBitmap
L_ColorMergeBitmap
L_ColorSeparateBitmap
L_CombineBitmap
L_DeskewBitmap
L_DespeckleBitmap
L_EmbossBitmap
L_FillBitmap
L_FlipBitmap
L_GammaCorrectBitmap
L_GetBitmapHistogram
L_GrayScaleBitmap
L_HalfToneBitmap
L_HistoEqualizeBitmap
L_IntensityDetectBitmap
L_InvertBitmap
L_MedianFilterBitmap
L_MMConvertFromBitmapList (Multimedia Video Module only)
L_MMSaveFile (Multimedia Video Module only)
L_MosaicBitmap
L_PaintDCEffect
L_PosterizeBitmap
L_PrintBitmap
L_RemapBitmapIntensity
L_ResizeBitmap
L_ReverseBitmap
L_RotateBitmap
L_SharpenBitmap
L_ShearBitmap
L_SizeBitmap
L_SpatialFilterBitmap
L_StretchBitmapIntensity
L_UnderlayBitmap

This function is the only way to retrieve the user-defined data associated with the status callback.

Required DLLs and Libraries

LTKRN 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

Functions:	STATUSCALLBACK, L_SetStatusCallBack
Topics:	Using Callback Functions

Example

For complete sample code, refer to the CHILD.C module of the DEMO example.