snapshot and animation capture

Scott Rossi scott at tactilemedia.com
Thu Jan 28 23:23:05 EST 2016


As a concept, I thought it might be possible to detect the screenMouseLoc
in a frontScript and use the resulting snapshot dimensions to determine
the width/height of captured screen rect.  Two problems though: 1) under
7.1.1 here on OS X 10.9.5, when executing just "import snapshot" the
capture is WAY off from the selected rect, to the point of being unusable
(bug?), and 2) a frontScript doesn't appear to grab the mouse location
while the snapshot feature is active.

Regards,

Scott Rossi
Creative Director
Tactile Media, UX/UI Design




On 1/28/16, 7:26 PM, "use-livecode on behalf of Matt Maier"
<use-livecode-bounces at lists.runrev.com on behalf of blueback09 at gmail.com>
wrote:

>About that, is there a way to save the rectangle that the user draws
>manually using the crosshairs? With that I could at least capture the same
>rectangle again automatically.
>
>I suppose all I really need is a way for the user to define an area on the
>screen once and grab screenshots from that same area many times.
>On Jan 28, 2016 12:47, "Scott Rossi" <scott at tactilemedia.com> wrote:
>
>> Regarding lagginess: yes. I can't say for sure, but if the LiveCode guys
>> could enable the windowShape property to work with images that have
>> centerRect dimensions, this would eliminate the need to do any image
>> exporting and potentially make drawing of the window faster.  I've
>> suggested for years that window masks be based on graphics and converted
>> image/alphaData behind the scenes, but for now we're stuck with images.
>>
>> Regarding screenshots, WITHIN LiveCode you can capture just about
>> anything, but I don't believe there are any options for capturing
>> externally other than defining a rect on the screen.
>>
>> Regards,
>>
>> Scott Rossi
>> Creative Director
>> Tactile Media, UX/UI Design
>>
>>
>>
>>
>> On 1/28/16, 12:21 PM, "use-livecode on behalf of Matt Maier"
>> <use-livecode-bounces at lists.runrev.com on behalf of
>>blueback09 at gmail.com>
>> wrote:
>>
>> >Mark, oops, didn't scroll far enough. I found the link to Snapper,
>>thanks.
>> >
>> >Scott, that's great, and thanks for putting that post and stack up so
>> >fast.
>> >It's a little laggy on my system when it resizes quickly or gets to
>>around
>> >750 pixels. Is it the same on yours?
>> >
>> >Is there a way to control other applications from within Livecode?
>>Like,
>> >if
>> >the user has their browser running, could I bring it to the front,
>>take a
>> >screenshot, then send it back behind the stand-alone again? Or is
>>there a
>> >parameter in Livecode's screenshot function to only include another
>> >application in the screenshot?
>> >On Jan 27, 2016 14:28, "Scott Rossi" <scott at tactilemedia.com> wrote:
>> >
>> >> I thought this might make an interesting read, so the demo stack is
>> >> included in an article:
>> >> <
>> >>
>> >>
>> 
>>http://tactilemedia.com/blog/2016/01/27/i-was-framed-a-resizable-custom-w
>> >>i
>> >> ndowshape-in-livecode/>
>> >>
>> >>
>> >> Hope this works for you.
>> >>
>> >> Regards,
>> >>
>> >> Scott Rossi
>> >> Creative Director
>> >> Tactile Media, UX/UI Design
>> >>
>> >>
>> >>
>> >>
>> >> On 1/27/16, 11:55 AM, "use-livecode on behalf of Scott Rossi"
>> >> <use-livecode-bounces at lists.runrev.com on behalf of
>> >> scott at tactilemedia.com> wrote:
>> >>
>> >> >Hi Matt:
>> >> >
>> >> >I have a method for a resizable masked window that requires LC7 --
>>I'll
>> >> >try to post something later today or tomorrow.  As far as image
>> >>animation
>> >> >goes, I have a very vague memory that LC used to be able to export
>> >> >animated GIF images, but that may have been static images only.  You
>> >>may
>> >> >indeed need to go with a 3rd party option -- hopefully somebody else
>> >>has a
>> >> >suggestion for this.
>> >> >
>> >> >Regards,
>> >> >
>> >> >Scott Rossi
>> >> >Creative Director
>> >> >Tactile Media, UX/UI Design
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >On 1/27/16, 11:38 AM, "use-livecode on behalf of Matt Maier"
>> >> ><use-livecode-bounces at lists.runrev.com on behalf of
>> >>blueback09 at gmail.com>
>> >> >wrote:
>> >> >
>> >> >>I need to be able to easily capture stuff the user is seeing on
>>their
>> >> >>screen so that they can import it into my application without
>>having
>> >>to
>> >> >>navigate the file manager multiple times. There's some good screen
>> >> >>capture
>> >> >>stuff already in Livecode, but what I'm picturing is an actual
>>window
>> >> >>with
>> >> >>a hole in it the user can position and leave there so they know
>>what's
>> >> >>going to be captured multiple times. Like gifcam
>> >> >>http://blog.bahraniapps.com/gifcam/
>> >> >>
>> >> >>There doesn't seem to be a way to set the background of a window to
>> >> >>transparent. There is a way to mask the window using a transparent
>> >>.png,
>> >> >>but that won't allow the user to resize the window. At the moment
>>the
>> >> >>only
>> >> >>mechanism I can come up with is to screencap what's behind the
>>window
>> >> >>every
>> >> >>time the user moves or resizes it and display that in the window so
>> >>that
>> >> >>it
>> >> >>looks like it's transparent. Is there a better way?
>> >> >>
>> >> >>Also, in addition to capturing still images, I'd like the user to
>>be
>> >>able
>> >> >>to capture animated images (as an alternative to video). So, that
>>part
>> >> >>would be exactly like gifcam. The only mechanism I've found for
>>that
>> >>is
>> >> >>to
>> >> >>export each frame and then use something external like imagemagik
>>to
>> >> >>stitch
>> >> >>them together into an animation.
>> >> >>
>> >> >>- Matt






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