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STR #1387
| Application: | FLTK Library |
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| Status: | 1 - Closed w/Resolution |
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| Priority: | 3 - Moderate, e.g. unable to compile the software |
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| Scope: | 2 - Specific to an operating system |
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| Subsystem: | WIN32 |
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| Summary: | fltk main loop hogs cpu, when window size becomes 0,0 |
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| Version: | 1.1-current |
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| Created By: | xovo |
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| Assigned To: | matt |
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| Fix Version: | 1.1-current (SVN: v5346) |
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| Update Notification: | |
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Trouble Report Files:
No files
Trouble Report Comments:
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| #1 | xovo
12:13 Aug 03, 2006 |
| With the program below (which is a stripped-down version of a normal use case in my application) fltk uses 100% cpu.
I'm aware that size 0,0 might not be really supported, but i would prefer fltk to handle this case instead of using a workaround.
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#include <FL/Fl.H>
#include <FL/Fl_Gl_Window.H>
#include <stdio.h>
int main(int argc, char **argv)
{
Fl_Window *window = new Fl_Window(300,200);
window->clear_border(); // no border!!
window->show();
// wait some time
Fl::wait(10.);
window->size(0,0);
while(true) {
printf("LOOP ");
// doesn't wait....
Fl::wait(100.);
}
return 0;
} | |
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| #2 | matt
03:52 Aug 17, 2006 |
| On which operating system? | |
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| #3 | xovo
05:35 Aug 17, 2006 |
| that's on Windows XP | |
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| #4 | matt
04:50 Aug 23, 2006 |
| Fixed in Subversion repository.
Zero size windows countinously trigger WM_PAINT events. This is a knowns issue and a bug in WIN32. We now avaoid that by simply resizing windows to at least 1x1. If you need an invisible window, just hide it ;-) | |
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