#include "ltwrappr.h"

L_BOOL LBarCode::IsValid (L_VOID)

Determines whether the LBarCode object is valid.


Value Meaning
TRUE There is a pointer to a valid bitmap object.
FALSE There is not a pointer to a valid bitmap object.


Call this function to determine whether the class object has been associated with a valid LBitmapBase object.

Before using some of the LBarCode functions, a bitmap must be associated with the class object. Until a valid bitmap object is associated with the LBarCode object, this function will return false.

Specifically, barcodes cannot be read or written until a valid bitmap is associated with the LBarCode class object.

Required DLLs and Libraries

See Also




For complete sample code, refer to the BarCode demo. For an example, refer to LBarCode::Write.

Help Version 20.0.2018.9.25
Products | Support | Contact Us | Copyright Notices
© 1991-2018 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS Barcode C++ Class Library Help