Custom Query (27 matches)

It will be useful to teach the qmake utility to automatically compile and link OS/2 resource files to generated executables, using the RC_FILE project variable to specify a resource script file (like it does under Win32).

Currently, the GNUMAKE backend for qmake (used by Qt/OS2) handles this variable incorrectly, which needs to be fixed.

We need to support the alpha channel in the QPixmap implementation, and correctly blend it when drawing pixmaps both to widgets and to other pixmaps.

If we have a QApplication instance created on the stack in main() (a very common practice for 99% of Qt apps), then an attempt to call the exit() function from stdlib will produce an application trap with a popuplog entry (SYS3170/c0010001, most likely in DOSCALL1.DLL).

A simple example to reproduce:

#include <qapplication.h>
#include <stdlib.h>
int main (int argc, char **argv)
{
    QApplication a (argc, argv);
    exit (-1);
}

From what I've already found, this happens when a global QFontCache (internal QObject subclass) instance is being destroyed (by a static func from the exit list). It is created as a child of QApplication, so its QObject desctructor calls parentObject->removeChild (this); but for some reason the vtable of the QApplocation instance is already corrupted by that time (but no QApplocation destructor has been called yet!).