Ok. Probably the update is being hold in the GTK message processing. If
you really need a fast update then you may try using IupFlush to force a
message processing after setting SCROLLTO.
Best,
Scuri
Em seg, 25 de jun de 2018 às 09:17, max chen <trls...@gmail.com> escreveu:
> It work in a regular situation, for example, use a button to scroll to
> bottom. But it did not work with timer.
>
> Antonio Scuri <antonio.sc...@gmail.com> 于2018年6月25日周一 下午7:59写道：
>
>> With the timer or in a regular situation?
>>
>> Em seg, 25 de jun de 2018 08:22, max chen <trls...@gmail.com> escreveu:
>>
>>> Yes, it works in Windows. But in Linux, I can't see the latest appended
>>> string and the scroll bar will never reach the bottom.
>>>
>>> Antonio Scuri <antonio.sc...@gmail.com> 于2018年6月25日周一 下午6:14写道：
>>>
>>>> Hi,
>>>>
>>>> Your code is working in Windows and in Linux.
>>>>
>>>> In Linux it takes a little longer to update the scrollbar because of
>>>> the fast pace of the timer, but it is updated.
>>>>
>>>> How does it behave on your system?
>>>>
>>>> Best,
>>>> Scuri
>>>>
>>>>
>>>> Em dom, 24 de jun de 2018 às 21:51, max chen <trls...@gmail.com>
>>>> escreveu:
>>>>
>>>>> I want to use IupText to be a message output console, when message
>>>>> append to IupText, I want to scroll to the bottom of IupText. I try the
>>>>> following code, but it didn't work.
>>>>>
>>>>> [code]
>>>>> #include <stdio.h>
>>>>> #include <stdlib.h>
>>>>> #include <string.h>
>>>>> #include <iup.h>
>>>>>
>>>>> Ihandle *txt_message;
>>>>>
>>>>> int cb_timer(Ihandle *self)
>>>>> {
>>>>> static int val;
>>>>> int line_cnt;
>>>>>
>>>>> IupSetStrf(txt_message, "APPEND", "[%d]TEST TXT\n\r", val++);
>>>>> line_cnt = IupGetInt(txt_message, "LINECOUNT");
>>>>> IupSetStrf(txt_message, "SCROLLTO", "%d:1", line_cnt);
>>>>>
>>>>> return IUP_DEFAULT;
>>>>> }
>>>>>
>>>>> void create_main_dialog(void)
>>>>> {
>>>>> Ihandle *dlg;
>>>>> Ihandle *timer;
>>>>>
>>>>> timer = IupTimer();
>>>>> IupSetInt(timer, "TIME", 100);
>>>>> IupSetCallback(timer, "ACTION_CB", (Icallback)cb_timer);
>>>>> IupSetAttribute(timer, "RUN", "YES");
>>>>>
>>>>> txt_message = IupText(NULL);
>>>>> IupSetAttribute(txt_message, "EXPAND", "YES");
>>>>> IupSetAttribute(txt_message, "READONLY", "YES");
>>>>> IupSetAttribute(txt_message, "MULTILINE", "YES");
>>>>> IupSetAttribute(txt_message, "APPENDNEWLINE", "NO");
>>>>>
>>>>> dlg = IupDialog(
>>>>> IupSetAttributes(IupVbox(
>>>>> txt_message,
>>>>> NULL), "NMARGIN=10x10,GAP=10")
>>>>> );
>>>>>
>>>>> IupSetAttribute(dlg, "TITLE", "RTT STLINK");
>>>>> IupSetAttribute(dlg, "RASTERSIZE", "800x600");
>>>>> IupShowXY(dlg, IUP_CENTER, IUP_CENTER);
>>>>> }
>>>>>
>>>>> int main(int ac, char** av)
>>>>> {
>>>>> IupOpen(&ac, &av);
>>>>>
>>>>> create_main_dialog();
>>>>> IupMainLoop();
>>>>>
>>>>> IupClose();
>>>>> return 0;
>>>>> }
>>>>> [/code]
>>>>>
>>>>> Iup 3.25, linux 4.47, gtk+3.0
>>>>>
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