[Lazarus] Caret is not blinking in Unix

[Mehmet Erol Sanliturk]

On each key press , the pressed character appears on the form area , but
caret is not blinking even one time .

Thank you very much .

Mehmet Erol Sanliturk




On Fri, Apr 5, 2013 at 4:14 AM, Martin <lazarus at mfriebe.de> wrote:

> On 05/04/2013 12:04, Mehmet Erol Sanliturk wrote:
>
>>
>> Previously I have sent the following message :
>>
>> http://lists.lazarus.**freepascal.org/pipermail/**
>> lazarus/2013-March/079951.html<http://lists.lazarus.freepascal.org/pipermail/lazarus/2013-March/079951.html>
>>
>> A help is really appreciated very much .
>>
>
>  On TcustomControl canvas covering all of the form client area , the caret
>> is NOT blinking in
>> Unix ( FreeBSD , Fedora ( 17 , 18 ) ) , but it is blinking in Windows .
>>
>> Lazarus is installed and used as it is without any change .
>>
>> What can be done to make the caret blinking in Unix ?
>>
>
> On WIndows the caret is drawn by the OS. This includes hiding it. On
> windows (afaik) this is done by inverting pixel colors. Neither drawing,
> nor hiding does require the Control to paint.
>
> AFAIK on linux, the caret is drawn by the Widgetsetcode provided by
> Lazarus. And hiding the caret, is done by invalidating the area, and
> therefore only effective, if the control repaints itself.
>
> I do not know what goes wrong in your case, but here are some pointers:
> - Check that your control receives regular paint messages, and that it
> does actually paint the area. (It will get a paint messages for a small
> clip rect only, and must paint into that clip rect.
> - If no paint messages are received I have no idea, but maybe it is timer
> related (I haven't looked that deep, but I guess the caret is triggered by
> a timer.
>
>
> --
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