LBarCode::IsValid

#include "ltwrappr.h"

L_BOOL LBarCode::IsValid (L_VOID)

Determines whether the LBarCode object is valid.

Returns

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

Comments

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

Functions

Topics

Example

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

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