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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The dll has been widely used since its introduction in DLL has been placed in the public domain by Dosadi. Dosadi places EZTwain Classic in the public domain, and makes no claim or warranty of any kind regarding this software. If you use this package, you assume all responsibility for the results or lack thereof. The most current version of EZTW Dosadi continues to make eztwaih dll available, but offers no support for it.

EZTwain from PowerBuilder

This article is intended to bridge that gap. There are at least 53 functions in EZTW Many of these functions control the scanner device itself. Others are needed to interface with the more complex GUI structuring demanded by other languages.

A few provide basic information width, height, bitmap depth of the scanned image itself. Fortunately, only a few functions are required for allowing your Liberty BASIC program to communicate with a scanner and access the images.


Only a eztwaon of the functions clasic be addressed in this article.

Others will be addressed in a planned follow up article. You can view Don’s original code at etwain You can download eztwaindemo at http: You may want to check to be sure you have the most current version v1.

Divide that integer by to get the version. The function zetwain not zetwain if the scanner is connected or turned on. A return of 1 indicates one or more scanners have been installed to the system.

A return value of 1 indicates the user has made a selection. The function allows the handle of the application hApp be passed, but will accept a 0. DLL, multiplied by It takes a little time on the first call, after that it’s fast, ‘ just testing a flag.

Your app has one of ‘ these, right? The TWAIN spec calls for this feature to be available in ‘ your user interface, preferably as described. 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.

The current default source will be highlighted initially.

eztwain.dll functions download, free eztwain.dll functions download.

This function opens the scanner’s dialog, allowing the user to scan the image. It is important to note that EZTwain does not automatically scan. The user initiates the scan through the scanner’s own application window. Once scanned, the image is saved to disk in. A return of 0 indicates a successful save. To conserve space and time, the preliminary steps of checking version, existence of, and selection of the scanner has been omitted. EZTwain will default to the last scanner chosen.


Bitmap saved to disk. Did you cancel without saving?

Unable to lock DIB. BMP Windows Bitmap file. The user won’t know the difference.

Supported values of wPizTypes are documented within the comments of the function. Passing 0 cclassic safest. The function then returns the handle of the device independent bitmap hDIB. 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.

Unfortunately, this is not the case.

As documented by Alyce, the clipboard must first be opened, the contents retrieved, and then the clipboard closed. If this call fails, the clipboard is either empty or ‘ contains the old contents.

It’s free, it’s cassic, and it works.