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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Once scanned, the image is saved to disk in. A few provide basic information width, height, bitmap depth of the scanned image itself. If you use this package, you assume all responsibility for the results or lack thereof.

Did you cancel without saving? It is important to note that EZTwain does not automatically scan. The function allows the handle of the application hApp be passed, but will accept a 0. The dll has been widely used since its introduction in Dosadi continues to make this dll available, but offers no support for it.


The function does not check if the scanner is connected or turned on.

EZTwain Pro

DLL, multiplied by As documented by Alyce, the clipboard must first be cllassic, the contents retrieved, and then the clipboard closed. Your app has one of ‘ these, right? This function opens the scanner’s dialog, allowing the user to scan the image. There are at least 53 functions in EZTW If this call fails, the clipboard is either empty or ‘ contains the old contents.

Eztwain classic download

Many of these functions control the scanner device itself. Unfortunately, this is not the case. The current default source will be ezfwain initially. The user won’t know the difference.

BMP Windows Bitmap file. Passing 0 seems safest. Supported values of wPizTypes are documented within the comments of the function. Cclassic 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. 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.

c – How do I maximize scanning area in TWAIN? – Stack Overflow

A return of 0 indicates a successful save. You can view Don’s original code at http: It takes a little time on the first call, after that it’s fast, ‘ just testing a flag. Others will be addressed in a planned follow up article.


DLL has been placed in ezrwain public domain by Dosadi. You may want to check to be sure you have the most current version v1.

The most current version of EZTW The user initiates the scan through the scanner’s own application window. To conserve space and time, the preliminary steps of checking version, existence of, and selection of the scanner has been omitted.

Dosadi places EZTwain Classic in the public domain, and makes no claim or warranty of any kind regarding this software. This article is intended to bridge that gap.

You can download eztwaindemo at http: It’s free, it’s simple, and it works. A return value of 1 indicates the user has made a selection.