#include "ltwrappr.h"

L_BOOL LBase::EnableCallBack (bEnable)

Enables or disables the callback functions.


L_BOOL bEnable

Flag that indicates whether to enable or disable the callback functions. Possible values are:

Value Meaning
TRUE Enable the callback functions.
FALSE Disable the callback functions.


The previous setting.


Call this function to enable or disable the callback overridable functions for your class object. This will enable or disable the callback functions which exist in the calling object. Other objects will not be affected by this function. All LEADTOOLS C++ Class Library classes use this setting to enable or disable the various callback functions which exist in classes derived from LBase.

Required DLLs and Libraries


Win32, x64.

See Also


L_INT LBase__EnableCallBackExample() 
	L_INT nRet; 
	LBitmap MyBitmap, Bitmap2; 
	nRet = Bitmap2.Load(MAKE_IMAGE_PATH(TEXT("Image1.cmp")),24);  //load the bitmap at 24 bitsperpixel 
	if(nRet != SUCCESS) 
		return nRet; 
	//since the callback functions are enabled for MyBitmap object then  
	//LBitmapBase::ColorResBitmapCallBack() function for this object will be called repeatedly  
	nRet = MyBitmap.ColorRes(Bitmap2, 8);  
	if(nRet != SUCCESS) 
		return nRet; 
	return SUCCESS; 
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