Display images through a 4K DLP projector via HDMI

[IbrahimShn]

Hi,

i am very new to LabVIEW. My current task to do is as following:

Hardware i have:

Basler GigE camera

4K DLP projector connected via HDMI to the PC

The first thing i am trying to solve is:

I want my 4K projector to project 4K pictures which i created before as .png files to a wall, which i will capture with my Basler camera.

I searched the forum and found some topics about displaying pictures on a second monitor - which the projector basically is - but unfortunately there were no sample codes and i could not gain the experience so far to write it myself. I do not expect a full solution but would love to get hints or directions. I appreciate every help.

Best regards,

Ibrahim

[GerdW]

Hi Ibrahim,

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@IbrahimShn wrote:

I searched the forum and found some topics about displaying pictures on a second monitor - which the projector basically is - but unfortunately there were no sample codes and i could not gain the experience so far to write it myself.

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All you need to do is to move the frontpanel of a VI to be displayed on the 2nd monitor.

You can do so "manually" - or programmatically by using property nodes of the frontpanel/window.

[IbrahimShn]

Hi Gerd,

thank you for your suggestion. I think this will totally work for me. What i did until now:

I load my image i want my projector (basically second monitor) to project. I can see it in the image indicator in the front panel. I changed the size of the image indicator to 2160x3840 in the properties, this is the resolution of my image.

Under File > VI Properties > Window Run-Time Position i set the "Position" to maximized. If i now run the VI continously, my front panel is projected by the projector in fullscreen, but i still see the front panel bars. What do i have to do to basically just make the image in the image indicator projected in fullscreen?

I attached a picture of my front panel and block diagramm. I appreciate your help.

Best regards,

Ibrahim

[GerdW]

Hallo Ibrahim,

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@IbrahimShn wrote:

my front panel is projected by the projector in fullscreen, but i still see the front panel bars. What do i have to do to basically just make the image in the image indicator projected in fullscreen?

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In the VI properties you can also disable the frontpanel scroll bars, as well as the menu line/bar. You can even set the VI to modal, to further reduce the border…

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@IbrahimShn wrote:

Under File > VI Properties > Window Run-Time Position i set the "Position" to maximized. If i now run the VI continously,

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Don't use "run continously", this is only used for debugging!

Use a loop to have the VI run for longer periods…

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@IbrahimShn wrote:

I changed the size of the image indicator to 2160x3840 in the properties, this is the resolution of my image.

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You can make the window larger by some pixels and center it on screen: this way the borders will move "out of screen"…

A different option might be to call a 3rd party image viewer with appropriate options. IrfanView is such a tool, and it allows to display images "full screen" with/without scaling…