Note: As of March 1, , this version of EZTwain is no longer for sale. We are now selling licenses for EZTwain Pro 4, which is technically very similar but has. Hi, I wrote some sample vi for the EZtwain DLL from Dosadi. You can Which functionality missing in eztwain classic vs pro version for you?. ABSTRACT. The EZTWAIN library has been around for a long time. With Visual C and Visual Basic it is pretty easy to import the API calls from.

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EZTwain from PowerBuilder

This article is intended to bridge that gap. The user won’t know the difference. Others are needed to interface with the more complex GUI structuring demanded by other languages. There are at least 53 functions in EZTW The function then returns the handle of the device independent bitmap hDIB.

Eztsain current default source will be highlighted initially. Unable to lock DIB.

You may want to check to be sure you have the most current version v1. The most current version of EZTW If this call fails, the clipboard is either empty or ‘ contains the old contents. The TWAIN spec calls for this feature to be available in ‘ your user interface, preferably as described. DLL, multiplied by Fortunately, only a few functions are required for allowing your Liberty BASIC program to communicate with a scanner and access the images. Once clasxic, the image is saved to disk in.


Passing 0 seems safest. Did you cancel without saving? It takes a little time on the first call, after that it’s fast, ‘ just testing a flag. DLL has been placed in the public domain by Dosadi. Supported values of wPizTypes are documented within the comments of the function.

Eztwain classic download

The function does not check if the scanner is connected or turned on. Divide that integer by to get the version. BMP Windows Bitmap file. A problem with this approach is that the handle of the DIB is not necessarily the handle of the bitmap recognizable to Liberty BASIC, but more a pointer to where the bitmap lies in memory. It’s free, it’s simple, and it works.

Liberty BASIC Programmer’s Encyc – EZTwain

A return of 0 indicates a successful save. Dosadi continues to make this dll available, but offers no support for it.

As documented by Alyce, the clipboard must first be opened, the contents retrieved, and then the clipboard closed. You can view Don’s original code at http: It is important to note that EZTwain does not automatically scan.

Only a few of the functions will be addressed in this article. If you use this package, you assume all responsibility for the results or lack thereof. The user initiates the scan through the scanner’s own application window.


A return of 1 indicates one or more scanners have been installed to the system. Bitmap saved to disk. Others will be addressed in a planned follow up article.

The dll has been widely used since its introduction in Your app has one of ‘ these, right? Dosadi places EZTwain Classic in the public domain, and makes no claim or warranty of any kind regarding this software. If only one TWAIN device is installed on a system, it is selected ‘ automatically, so there is no need for the user to do Select Source. You can download eztwaindemo at http: The function allows the handle of the application hApp be passed, but will accept a 0. EZTwain will default to the last scanner chosen.

This function opens the scanner’s dialog, allowing the user to scan the image. To conserve space and time, the preliminary steps of checking version, existence eztwaij, and selection of the scanner has been omitted. A few provide basic information width, height, bitmap depth of the scanned image itself.