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- Alfred Whitney
October 31, 2006, 6:30 am
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document scanner drivers are non-existent for the high-end commercial
document scanners. So, I had to port my Linux PHP project to Windows
PHP (WAMP). There, I found a scanning tool (Kodak Image Scan -
imgscan.ocx) that I can put on a VB form, tell it to scan some
documents into a TIF file, and then shut down.
I can run this VB app at command line just fine, but when I run it from
either a popen(), system(), or exec() call, it won't detach from the
PHP page. Instead, it just sits there. I can see the VB exe I made is
being loaded properly in RAM, but unfortunately it sticks and won't
unload on its own, nor will it tell the scanner to engage. I have to
kill the VB exe and then the PHP page continues.
What's the way to spawn a detached process from PHP on Windows?