another mac to Windows gotcha

panagiotis merakos merakosp at gmail.com
Sat Feb 24 16:07:53 EST 2018


Hi Tim,

I am not sure if the DirectShow player (with is the API used by the LC
player on Windows) supports negative playrate:

https://msdn.microsoft.com/en-us/library/windows/desktop/dd377591(v=vs.85).aspx

There is also a bug report about it:

http://quality.livecode.com/show_bug.cgi?id=19129

Best,
Panos
-- 

On Sat, Feb 24, 2018 at 3:32 PM, Tim Selander via use-livecode <
use-livecode at lists.runrev.com> wrote:

> Hi Peter,
>
> Tried
> if pkeyname is "j" then
> set the playrate of player videoplayer to -1
> start player videplayer
> end if
>
> Results in a pause in playback as long as I am holding ctrl-j, as soon as
> that's released, forward play resumes.
>
> Thanks.
>
> Tim
>
>
>
> On 2018.02.25 0:26, Peter Bogdanoff via use-livecode wrote:
>
>> Tim,
>>
>> Try both commands in order: set playRate, then start.
>>
>> Peter Bogdanoff
>>
>> On Feb 24, 2018, at 10:16 AM, Tim Selander via use-livecode <
>>> use-livecode at lists.runrev.com> wrote:
>>>
>>> Hi Paul,
>>>
>>> Using 9.0 dp11 community. After sending the post, I found in the
>>> dictionary that for windows, commandkeydown message. After changing my
>>> script from controlkeydown to commandkeydown, it worked. Sort of.
>>>
>>> My next problem is that on the LC/osx I use:
>>>   if pkeyname is "j" then set the playrate of player videoplayer to -1
>>>   if pkeyname is "k" then set the playrate of player videoplayer to 0
>>>   if pkeyname is "l" then set the playrate of player videoplayer to 1
>>>
>>> to start, stop or reverse the player from the keyboard. This worked
>>> great in LC/osx, but is not working in win7/LC.
>>>
>>> I changed the lines to
>>>   if pkeyname is "k" then stop player videoplayer
>>>   if pkeyname is "l" then start player videoplayer
>>>
>>> and that works in win7/lc. But can't figure out how to send a play in
>>> reverse command from the keyboard yet.
>>>
>>> Tim Selander
>>> Tokyo, Japan
>>>
>>>
>>> On 2018.02.24 23:44, Paul Dupuis via use-livecode wrote:
>>>> controlKeyDown is absolutely available on Windows. See the dictionary
>>>> entry in LC8.1.9 for example. What version of LiveCode are you using?
>>>>
>>>>
>>>> On 2/24/2018 9:04 AM, Tim Selander via use-livecode wrote:
>>>>> Hi,
>>>>>
>>>>> Trying my first little LC app on Windows. I wrote an app on osx and am
>>>>> now trying to get it to work in a Win7 machine.
>>>>>
>>>>> On the mac app, I use ctrl-J, ctrl-K, and ctrl-L to control the video
>>>>> player. JKL is pretty standard video player control in video editing
>>>>> software.
>>>>>
>>>>> On the mac app, the card script 'listens' for controlkeydown, and if
>>>>> the other key is J K or L, sends the appropriate go, stop, reverse
>>>>> command to the player.
>>>>>
>>>>> Have just discovered controlkeydown is not available on windows. Is
>>>>> there an equivalent? What would the windows guy and gals here use?
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Tim Selander
>>>>> Tokyo, Japan
>>>>>
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