Author Archives: Nicolas Riousset

Great free tool for Windows dual monitor display

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Working efficiently as a developer requires two monitors. One dedicated to coding, the other one to internet browsing, documentation reading, email, etc. So that you don’t have to constantly switch back and forth between your IDE and your browser/email client.

Unfortunately, Windows 7 has poor multiple monitor supports. It works, but you end up with a task bar displayed on only one of your monitors, and it’s easy to forget which apps are on which screen.

I’ve been looking for solutions to this problem. Ideally, a simple taskbar that will only display the apps which are on the corresponding monitor. There seems to be several paying solutions, but Dual Monitor Taskbar is the only decent free one.

It’s simple, follows exactly the Windows look and feel and works flawlessly on my Windows 7 64 bits PC.

How to fix VRXLIB error “line too long” ?

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So, you’re using the vrxlib.exe tool to create a shared library for your Verifone Verix/eVo application, and linking fails with the following error :

Reading library description MYLIB.LID
VRXLIB: (MYLIB.LID line 4) line too long
VRXLIB: 1 errors in MYLIB.LID

The error is simple to fix, but it may not be what it looks like.
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Why is draw_line() not drawing anything on my Verifone Vx display ?

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You’re playing with the Verifone eVo/Verix SDK, and are trying to draw a couple of lines on the screen. No big deal you think. You found the draw_line() function, read its (meager) documentation, and tried to use it. Unsuccessfully. Nothing is displayed. If draw_line() returns 0, you probably just messed up with the coordinates or you’re writing with the same color as the background. If the return value is -1, you need to check the errno value. Continue reading →