View source for Query the DosError() state

By SEG.

Source: comp.os.os2.programmer.misc:

The reason is that there is no way to undo DosError(), since there is no way to query what is the state of error-reporting was when your function is called.
 
 
Umm, not well-documented, but a little poking revealed this (won't work in Warp 3 or Warp 4 prior to FP13):
 
 APIRET APIENTRY DosSysCtl(ULONG func, ULONG p);
 
         ULONG SavedDosError = 1;
         DosSysCtl((ULONG)27, (ULONG)&SavedDosError);
         DosError(0L);    //FERR_DISABLEHARDERROR
 ...
         DosError(SavedDosError);
 
Hope this helps.

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