XnView Software

In fullscreen, I press "*" on some large image to present an 800x600 view. When selecting as much of the screen as I can only select 799x599. Is there any method of selecting exactly the screen size in fullscreen?

marsh

Hello !

- I guess it's a problem of numbers…
- I checked that here at this moment with 1024*768, following your steps.
- I made a screen-shot and imported it in “View” mode : not any pixel is missing, I got the full screen size alright.

• However, I remember similar issues when I had 600*800 a while ago : some pics - resized or captured in the same way than now - had one missing pixel at each side. A rounding problem… ? Not sure it's the same for you. ?

Kind regards,
Claude
Clo

In fullscreen, I can only select 799x599 of a 1024x768 screenshot (by moving my mouse as from corner to corner after pressing "*"). I'm always 1 pixel short.

marsh wrote:In fullscreen, I press "*" on some large image to present an 800x600 view. When selecting as much of the screen as I can only select 799x599. Is there any method of selecting exactly the screen size in fullscreen?

marsh, did you count the pixels?
I think the counting starts at 0 - so there are 800x600 pixels.

Lesmo16 wrote:

marsh wrote:In fullscreen, I press "*" on some large image to present an 800x600 view. When selecting as much of the screen as I can only select 799x599. Is there any method of selecting exactly the screen size in fullscreen?

marsh, did you count the pixels?
I think the counting starts at 0 - so there are 800x600 pixels.

When switching back to desktop, Xnview shows I had selected 799x599 in fullscreen. Dragging mouse from corner to corner and cropping, I'm always 1 pixel short as well.

Hi again, marsh !

- Whether you paste (import) the screen-shot by Shift+Ctrl+V, what is displayed as size in the status-bar for the <Clipboard1> pic you get ?

- Indeed, Lesmo16 is right : in the computer science and electronics, all is counted from "zero"… which is an item (the first) of the number.

KR
Claude
Clo

My imported sreenshots are all sized 1024x768 or 800x600.

marsh wrote:My imported sreenshots are all sized 1024x768 or 800x600.

You see - everything is fine.

Lesmo16 wrote:

marsh wrote:My imported sreenshots are all sized 1024x768 or 800x600.

You see - everything is fine.

I realize I can take screenshots of interesting area of large photo this will result in correct size. I just think its odd that I cannot select that amount in fullscreen with a mouse. The mouse selectable area seems one pixel short of actual area in fullscreen.

marsh wrote:

Lesmo16 wrote:

marsh wrote:My imported sreenshots are all sized 1024x768 or 800x600.

You see - everything is fine.

I realize I can take screenshots of interesting area of large photo this will result in correct size. I just think its odd that I cannot select that amount in fullscreen with a mouse. The mouse selectable area seems one pixel short of actual area in fullscreen.

I think the selection is correct.
Pierre should add 1 to width and height screen output - so you'll read the real amount of pixels.


What about a test:

- take MSPaint and draw a 800x600 rectangle
- save it as you like
- view it in xnView
- select with mouse and copy the selection to clipboard
- open MSPaint with a new file
- paste your selection
- check if everything is there

Indeed, selecting the full screen with the mouse >>“Copy” "eats" one pixel :

        

- I use always Alt+PrintScreen to make such screen-shots, or PrintScreen to get the whole parent+child windows - useful to show these awful fugitive menus or text-hints… to crop then
That missing pixel is weird, though… maybe Pierre will explain us ?
- I thought it could be the thickness of the selection-frame ?

Kind regards
Claude
Clo

marsh wrote:In fullscreen, I press "*" on some large image to present an 800x600 view. When selecting as much of the screen as I can only select 799x599. Is there any method of selecting exactly the screen size in fullscreen?

Ctrl+A??

Hello Pierre !

- Ctrl+A doesn't work in this case, while you pressed "*" before…
- If you didn't, you select the whole pic size, and not the screen resolution size, like marsh wishes…

KR
Claude
Clo

Thank you Clo for recreating the problem: The largest area which can be selected in fullscreen using mouse (and without scrolling the picture) is one pixel less than the current screen resolution. This makes if difficult to select a 1024x768 section while remaining in fullscreen.

marsh wrote:Thank you Clo for recreating the problem: The largest area which can be selected in fullscreen using mouse (and without scrolling the picture) is one pixel less than the current screen resolution. This makes if difficult to select a 1024x768 section while remaining in fullscreen.

Ok, right