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Multiple Display Outputs

VBert
VBert asked
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Medium Priority
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Last Modified: 2010-05-03
Is it possible to direct screen output to a second monitor via a comm port? Seems to me that I saw someone do a powerpoint demo where the presentation was directed to an alternate video display.  The audience didn't see the behind-the-scenes loading and unloading of presentations, just the output.

Can I do the same thing in VB5?  Any tips or hints in coding?

Thanks,
VBert
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Commented:
Vbert
I believe the demo you see is from a computer that support an extra monitor. (most notebooks do). I don't think you can do it with a comm port to a monitor.
Regards
Dalin

Commented:
Windows 98 supports this (someway).
ESI

Commented:
Llandr : Any Window98 API calls welcome !!!

Commented:
Llandr,
Do you mean win98 support an extra monitor by using a comm port?  Then you need a hardware to adapt a comm port ( 9 -pin) to a monitor connect...
It can't be a simpling call APIs...Can it?

 

Commented:
Windows '98 supports multiple monitors: You need two have two VGA-cards installed, and then Win98 can use the two vga-cards to display the presentation on one screen, and the loading and stuff you want to do on the other monitor. Driving a monitor from a COM port just can't be done, because:

1. COM-output is very different from VGA-input
2. COM-port speed is too slow (I guess...otherwise all monitors would be driven from cheap COM-ports instead of expensive (talking 'bout the ol' days...:) VGA-cards...)

Greetz, Michel
Commented:
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