Comments on: ScreenCapture utility

By: Sajad Rahmdel

Sajad Rahmdel — Wed, 26 Dec 2018 08:30:38 +0000

Thank you

By: Note: export_fig File Exchange Utility – Nguyen Quan Ba Hong

Note: export_fig File Exchange Utility – Nguyen Quan Ba Hong — Fri, 15 Jun 2018 18:13:24 +0000

[…] interested in high-fidelity export might also consider using Yair’s ScreenCapture utility. Unlike export_fig, which uses MATLAB’s builtin print function to generate (& fix) the […]

By: Guillaume

Guillaume — Thu, 27 Oct 2016 05:56:37 +0000

Hi Yair, I successfully use screencapture along with imwrite to save a screenshot of a maximized figure, however I can see some funny results on the bottom and left edges of the saved .png. See https://cloud.githubusercontent.com/assets/3498686/19756046/b72e277c-9c65-11e6-901a-a862f3ef5fdc.png Code:

% preserve the color scheme
set(hFig, 'InvertHardcopy', 'off');

drawnow;

% force figure full screen
try
    warning('off', 'MATLAB:HandleGraphics:ObsoletedProperty:JavaFrame');
    frame_h = get(handle(hFig), 'JavaFrame');
    set(frame_h, 'Maximized', 1);
catch
    disp(['Warning : JavaFrame feature not supported. Figure is going full ' ...
        'screen using normalised units which does not give best results.']);
    oldUnits = get(hFig, 'Units');
    set(hFig, 'Units', 'norm', 'Pos', [0, 0, 1, 1]);
    set(hFig, 'Units', oldUnits);
end

% screencapture creates an image of what is really displayed on
% screen.
imwrite(screencapture(hPanel), fileDestination);

By: Peter Newton

Peter Newton — Tue, 09 Aug 2016 12:47:53 +0000

In reply to Peter Newton. Hi, I have found this web page and have resolve my problem, as they say read the manual first. https://github.com/altmany/export_fig sorry to have waisted your time. Regards Peter

By: Peter Newton

Peter Newton — Tue, 09 Aug 2016 12:21:44 +0000

Hi,
Many thanks for a great screenshot utility. I have a question in that I want to use a variable fname2 that will have a difference file name each time I use it. The problem I am having is I can’t get the export_fig script to take the fname2 variable with the size of the screenshot to work together. I have tried putting the fname2 along with the screenshot variables into one variable, it does run it but includes the screenshot variables in the file name and ignores them. Does anyone have any ideal how I can get this to work, below is an example of what I am trying,

export_fig (fname3) -m2.5 -c[05 465 250 65] ;

regards
Peter

By: Rocco

Rocco — Wed, 27 Jul 2016 17:00:57 +0000

Hi Yair, thanks for the reply. Very useful utility especially when used with frameless (undecorated) figure windows you mention above !

By: Yair Altman

Yair Altman — Wed, 27 Jul 2016 11:57:36 +0000

In reply to Kurt. @Kurt - perhaps your figure is not visible on-screen (minimized, hidden, or not yet fully-rendered) when you take the screenshot.

By: Kurt

Kurt — Tue, 26 Jul 2016 21:14:15 +0000

When I run this code I get a black box and not the screen capture. Is there something I need or am doing wrong? I have both files in the same directory. Thanks.

By: Yair Altman

Yair Altman — Sat, 16 Jul 2016 20:35:21 +0000

In reply to Rocco. @Rocco - the ScreenCapture utility returns an imageData array that you can then use in Matlab, without needing to save and load from file. Read the utility's documentation carefully for details. Contact me offline (email) if you still need additional consulting.

By: Rocco

Rocco — Thu, 14 Jul 2016 14:33:11 +0000

Yair,
I am new to this community and I have been trying to do exactly what your ScreenCapture utility does, with one important twist. Is there a way to capture a non-matlab figure with the mouse and bring it into the matlab workspace automatically without having to save and import the data? Say I am drawing on a pen-tablet and want to select/capture a region of the drawing and bring it into matlab programmatically as rgb pixels. Is this possible? I have attempted to hire someone on freelancer to do this without luck. If it can be done in Matlab, let’s talk $ for a stand-alone executable. Thanks!