wia

WIA Scanning via Feeder Here is my device properties: Document Handling Select = 1 (2 is for flatbed, and 1 is for the feeder.) Here is my item (page) properties: Horizontal Resolution = 150 Vertical Resolution = 150 Horizontal Extent = 500 (I want to get it first to work, then I'll play with the extents.), Vertical Extent = 500 Bits Per Pixel = 8 Current Intent = 4 I got everything running smoothly if I set the "Document Handling Select" to "2". When I set it to "1", and ran it, just before I say item.Transfer() (or item.Transfer(bmp/jpeg/pngGuid)) I get the exception "Value does not fall

I need to create a virtual webcam that poses as a webcam, but takes as input a set of images that it plays. I have seen solutions like ManyCam, and Fake Webcam, but they all seem to one limitation or the other (resolution, max file size, fps etc.) I am working on Windows XP SP3. I understand that I have to write a WIA interface for this task, but being a Python programmer, I have never written drivers or interfaces to devices. What are the main tasks in writing this interface ? What would the flow look like ? You need to write DirectShow filter which is a COM server that implements an IPin ,

I need to create a virtual webcam that poses as a webcam, but takes as input a set of images that it plays. I have seen solutions like ManyCam, and Fake Webcam, but they all seem to one limitation or the other (resolution, max file size, fps etc.) I am working on Windows XP SP3. I understand that I have to write a WIA interface for this task, but being a Python programmer, I have never written drivers or interfaces to devices. What are the main tasks in writing this interface ? What would the flow look like ? You need to write DirectShow filter which is a COM server that implements an IPin ,

I have a HP Scanjet 7000 (duplex & ADF scanner) and a HP Scanjet 5500c (only ADF) and a scanner program I'm developing which uses WIA 2.0 on Windows 7. The problem is that the code works perfectly on the older scanner model, but on the newer one the code seems to run just fine through the first page, then fail on the second. If I step through the code around the following line; image = (WIA.ImageFile)wiaCommonDialog.ShowTransfer(item, wiaFormatTIFF, false); the old scanner stops and waits for another call to be made on the same reference, but the newer one just runs through all it's pages from

I want to implement a paperless filing system and was looking to use WIA with C# for the image acquisition. There are quite a few sample projects on CodeProject, etc. However, after downloading every one of them that I can find, I have run into a problem. In each and every one of them, the reference to WIALib is broken. When I go to add "Microsoft Windows Image Acquisition" as a reference, the only version available on my development workstation (also the machine that will run this) is 2.0. Unfortunately, every one of these sample projects appear to have been coded against 1.x. The reference