RE: Controlling Laptop Camera from 4D

Hi Randy, Have you tried these? Tech Note: Camera Interface - Revised http://kb.4d.com/assetid=77204 Tech Note: Camera Security Surveillance System in 4D http://kb.4d.com/assetid=77659 -Tim -Original Message- From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of Randy Engle

Re: Mac Mojave and v17?

Thanks for the feedback Randy and Jeff. I sounds like there are some interface issues to be resolved. This will be the server, and most all the clients will still be on 10.13. I was surprise 4D was not certified for 10.14. It must take some time. Dave On Fri, Nov 9, 2018 at 3:32 PM Randy Jaynes

Controlling Laptop Camera from 4D

I'm trying to run the camera on my laptop (Dell 7720) - yes - it's Windows I thought that Win32API might be able to do this, but all I can see using TWAIN_GetSources are some scanners on my network. So, apparently, my laptop camera is not a Twain or Wia device. Thought Qpix might do this, but

Re: Semaphores and Server-Side Data Updates in Multi-User Environment

Hi Ben, I do a lot of processing like this. I like to use the Execute on server property for the method doing the processing. The structure is pretty straightforward: // EOSmethod ( parameters ) -> text // first off, check the semaphore If (Not(Semaphore("specialMethod"))) READ ONLY(*) //

RE: Semaphores and Server-Side Data Updates in Multi-User Environment

Thanks Chip, this will be helpful! Unfortunately a different project just came up, so I can't actually start work on the semaphore project until I finish. - Ben > my outline for this would be as follows. I am not up to v16 yet, so > this will be a 'classic' solution, use of call worker might

Re: 4Dv17 + Windows 10 + VirtualBox

Hi Pat, This reminds me of the the expression "The pump must be primed". With respect to building merged client/server apps where clients wil run on both platforms, "the pump must be primed". This means the initial client/server merge is performed on **each** platform. (This is the pump

Re: Placing a picture or graphic object

Peter, here is code I use for moving things. it simplifies the whole process for me. I no longer have to remember exact syntax etc. Note you can use a pointer to a n active object (button, variable etc), or pass Nil as $1 and the object name in $4 for static objects (text, etc) //Project

4Dv17 + Windows 10 + VirtualBox

Anybody else using this configuration? I find that it works OK - although rather slowly - with one exception: When I compile a multi-user app, if I include the automatic client updating options for Windows and Mac, it does not compile the Client app. I get an error message "Cannot install the

Re: Placing a picture or graphic object

Thanks I hadnt appreciated the different syntax between the absolute and relative modes cheers -pm On Sun, Nov 11, 2018 at 8:56 PM Jeremy French wrote: > Hi Peter, > > Ok, so the line is 1px wide and 60px high. You want to keep the line's > dimensions but relocate the line to top = 0, left =55.