Geoff Chappell, Software Analyst
The THREADINFO structure has from the beginning had a TIF_flags member that is, of course, interpreted in bits. Type information in symbol files for WIN32K.SYS in Windows 7 (only) shows that these bits are not defined as formal bit fields. Debugger extensions for early Windows versions have text for describing some bits, presumably by reproducing Microsoft’s macro definitions from a C-language header. I may some day follow up which of these persist to later versions (and whether they are credible for the stated versions).
| Mask | Name | Versions |
|---|---|---|
| 0x00000001 | TIF_INCLEANUP | 3.51 to 5.0 |
| 0x00000002 | TIF_16BIT | 3.51 to 5.0 |
| 0x00000004 | TIF_SYSTEMTHREAD | 3.51 to 5.0 |
| 0x00000008 | TIF_LOCKNOREMOVE | 3.51 only |
| TIF_CSRSSTHREAD | 4.0 to 5.0 | |
| 0x00000010 | TIF_TRACKRECTVISIBLE | 3.51 to 5.0 |
| 0x00000020 | TIF_ALLOWFOREGROUNDACTIVATE | 3.51 to 5.0 |
| 0x00000040 | TIF_DONTATTACHQUEUE | 3.51 to 5.0 |
| 0x00000080 | TIF_DONTJOURNALATTACH | 3.51 to 5.0 |
| 0x00000100 | TIF_SCREENSAVER | 3.51 to 4.0 |
| TIF_WOW64 | 5.0 only | |
| 0x00000200 | TIF_INACTIVATEAPPMSG | 3.51 to 5.0 |
| 0x00000400 | TIF_SPINNING | 3.51 to 5.0 |
| 0x00000800 | unnamed | 3.51 only |
| TIF_PALETTEAWARE | 4.0 to 5.0 | |
| 0x00001000 | TIF_SHAREDWOW | 3.51 to 5.0 |
| 0x00002000 | TIF_FIRSTIDLE | 3.51 to 5.0 |
| 0x00004000 | TIF_WAITFORINPUTIDLE | 3.51 to 5.0 |
| 0x00008000 | TIF_MOVESIZETRACKING | 3.51 to 5.0 |
| 0x00010000 | TIF_VDMAPP | 3.51 to 5.0 |
| 0x00020000 | TIF_DOSEMULATOR | 3.51 to 5.0 |
| 0x00040000 | TIF_GLOBALHOOKER | 3.51 to 5.0 |
| 0x00080000 | TIF_DELAYEDEVENT | 3.51 to 5.0 |
| 0x00100000 | TIF_ALLOWSHUTDOWN | 4.0 only |
| TIF_MSGPOSCHANGED | 5.0 only | |
| 0x00200000 | TIF_SHUTDOWNCOMPLETE | 4.0 to 5.0 |
| 0x00100000 (3.51); 0x00400000 |
TIF_IGNOREPLAYBACKDELAY | 3.51 to 5.0 |
| 0x00800000 | TIF_ALLOWOTHERACCOUNTHOOK | 4.0 to 5.0 |
| 0x01000000 | unnamed | 5.0 only |
| 0x01000000 (4.0); 0x02000000 |
TIF_GUIDTHREADINITIALIZED | 4.0 to 5.0 |
| 0x04000000 | TIF_DISABLEIME | 5.0 only |
| 0x08000000 | TIF_INGETTEXTLENGTH | 5.0 only |
| 0x10000000 | TIF_ANSILENGTH | 5.0 only |
| 0x20000000 | TIF_DISABLEHOOKS | 5.0 only |