References ▼
#include "ltwrappr.h"
L_BOOL LBarCode::IsValid (L_VOID)
Determines whether the LBarCode object is valid.
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
LTBAR For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application |
Functions: |
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Topics: |
For complete sample code, refer to the BarCode demo. For an example, refer to LBarCode::Write.