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Gui Screen Shot Button

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Hello all,
I have a GUI that i created using guide and I am trying to create a push button that can be used to save a screen shot of the GUI window. I want to be able to select the location it is saving to and have it same with the same resolution. I got it working using the saveas function, but it saves, but the images come out very low quality. The save as code is as follows:
function pushbutton1_Callback(hObject, eventdata, handles)
[name,path,index] = uiputfile
saveas(Sections,[path name],'jpg');
I am not sure if there is a way to do this with the print command or not, but any help is appreciated.
  1 Comment
Geoff Hayes
Geoff Hayes on 10 Nov 2014
Christopher - how are you creating Sections which is presumably the screen shot of your GUI? It could be that the resolution is low quality since you are saving this image to jpeg. Have you tried bmp or other formats?

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Accepted Answer

Image Analyst
Image Analyst on 10 Nov 2014
Try this snippet to get a valid filename.
% Note, if you're saving an image you can use imsave() instead of uiputfile().
startingFolder = userpath
defaultFileName = fullfile(startingFolder, '*.*');
[baseFileName, folder] = uiputfile(defaultFileName, 'Specify a file');
if baseFileName == 0
% User clicked the Cancel button.
return;
end
fullFileName = fullfile(folder, baseFileName)
Then use fullFileName instead of "Sections" in saveas(), or better yet export_fig.
  3 Comments
Christopher
Christopher on 13 Nov 2014
Update, Export_fig works perfectly. Image Analyst, thanks for all your help :)

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More Answers (1)

Kiarash Ahi
Kiarash Ahi on 3 Mar 2018
Edited: Kiarash Ahi on 3 Mar 2018
I put it like this, but did not work, could you please help me:
function pushbutton76_Callback(hObject, eventdata, handles)
% Note, if you're saving an image you can use imsave() instead of uiputfile().
startingFolder = userpath
defaultFileName = fullfile(startingFolder, 'scsh.jpg')
saveas(Sections,[path name],'jpg');
[baseFileName, folder] = uiputfile(defaultFileName, 'Specify a file');
if baseFileName == 0
% User clicked the Cancel button.
return;
end
  2 Comments
Kiarash Ahi
Kiarash Ahi on 4 Mar 2018
I fixed it like this, it also keeps the resolution to what you see on your screen:
function pushbutton76_Callback(hObject, eventdata, handles)
% Note, if you're saving an image you can use imsave() instead of uiputfile().
matlab.graphics.internal.setPrintPreferences('DefaultPaperPositionMode','auto')
CHEA=handles.CHEA;
fig = gcf;
fig.PaperPositionMode = 'auto';
print('ScreenSizeFigure','-dpng','-r0')
startingFolder = userpath
global num;
n=num;
%s
ch=char(CHEA(n,1))
n=num2str(n)
n=char(n)
ch=strcat(ch,'-',n,'.png')
%ch=fprintf('%s',CHEA(n,1))
defaultFileName = fullfile(startingFolder,ch)
[baseFileName, folder] = uiputfile(defaultFileName, 'Specify a file');
saveas(gca,defaultFileName,'png');
fig.PaperPositionMode = 'auto';
print('ScreenSizeFigure','-dpng','-r0')
if baseFileName == 0
% User clicked the Cancel button.
return;
end

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