X_ChangeProperty: BadValue Error

[Jaime Machado]

Hi,

I'm working with MathGL and FLTK (running in a separate thread) and I always get this single error in the console: 

X_ChangeProperty: BadValue (integer parameter out of range for operation) 0x0

It doesn't seem fatal and everything continues to work. I've debugged my test program and the error doesn't seem to appear after a function call related to MathGL or FLTK. For example it appears in this line:

 

vector<double> f(size);

where size = 60. but if I put 60 instead of size, the error appears in a different line!...

If someone knows how to eliminate the error I'll appreciate the help. thanks.

Jaime

[Jaime Machado]

Here is a simple test program to illustrate the issue. I create 2 windows and I get 2 error lines:

#include <unistd.h> #include <mgl2/fltk.h>
 

 using namespace std;
 

 int main()
 {
 mglFLTK gr("test");
 gr.RunThr();
 gr.Box();
 gr.Update();
 

 mglFLTK gr2("test2");
 gr2.RunThr();
 gr2.Box();
 gr2.Update();
 

 sleep(20);
 return 0;
 }

In the console I get:

X_ChangeProperty: BadValue (integer parameter out of range for operation) 0x0

X_ChangeProperty: BadValue (integer parameter out of range for operation) 0x0

Jaime

[mathgl....@gmail.com]

Dear Jaime

This is message of FLTK window. Right now I don't know why it is produced. But I suppose it to be low-priority since it don't cause any visual effects (at least I don't see it).

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Kind regards,
Alexey Balakin

[Ludovic A.P.]

I've got the same error message also, using the latest stable mathGL and FLTK.

Maybe this is related to https://groups.google.com/g/fltkgeneral/c/4FJm_Gykp5I :

---------------------------------------------

The message appears when the main window is open with:
main->show( 0, NULL );
instead of just main->show();

---------------------------------------------

Ludo