My guess is that the drawing command never
gets sent to the server. For event driven
program, sleep() is the enemy. Try XSync()
before sleep(), or hoop-up an event handler
so you do not have to use sleep().
---Oliver Broeker <oliver@broeker.com> wrote:
>
> # To subscribers of the xforms list from Oliver Broeker
<oliver@broeker.com> :
>
> Dear fellow XForms users!
>
> I am using XForms to visualize an ongoing computation, where I need 2D
> primitives, such as points and lines. The number of windows need by
> dynamic in number and size. There are two ways I can thought about
going
> about with this:
>
> (a) generate a form including a GL canvas and do GL stuff in there. I
> don't know GL yet, so I postponed that solution.
>
> (b) Use XForms "dirty hack" primitives such as fl_rectf,....
>
> Now I boiled down my trouble to a simple program. That program opens a
> window win1, imidiately resizes it, opens a second window and then
> attempts to draw a blue box in the first window. I see two problems.
> - the window cannot be resized by fl_winreshape if it was opened using
> fl_wingeometry. Shouldn't that suppress interactive resizing only
> - the blue box is not drawn into win1. Apparently this has something
to
> with the resizing. Without resizing I encounter no such problems.
>
> I use forms library Version 0.88 I believe. My platform details:
> - SunOS ru7 5.5 Generic sun4m sparc SUNW,SPARCstation-10
> - gcc --version = 2.7.2
>
> Thanks for any help on this,
> === Oliver ===
>
> And here's the code:
>
> #include <unistd.h>
> #include <forms.h>
>
> int main(int argc,char *argv[]){
> Window win1,win2;
>
> fl_initialize(&argc,argv,0,0,0);
>
> fl_initial_wingeometry(0,0,200,100);
> win1 = fl_winopen("win1");
> fl_winreshape(win1,0,0,100,100);
>
> fl_transient();
> fl_initial_wingeometry(300,300,100,200);
> win2 = fl_winopen("win2");
>
> fl_winset(win1);
> fl_rectf(0,0,100,50,FL_BLUE);
> fl_winset(win2);
> fl_rectf(0,0,100,50,FL_BLUE);
>
> fl_check_forms();
> sleep(10);
> return(0);
> }
>
>
>
>
> --
> Oliver Broeker Tel: ++41 1 632 74 33
> Institut fuer Wissenschaftliches Rechnen Fax: ++41 1 632 11 72
> ETH Zentrum, IFW C27.2
mailto:broeker@inf.ethz.ch
> CH-8092 Zuerich http://www.inf.ethz.ch/personal/broeker/
> _________________________________________________
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> XForms Home Page: http://bragg.phys.uwm.edu/xforms
> List Archive: http://bob.usuf2.usuhs.mil/mailserv/list-archives/
>
>
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