Geoff Chappell, Software Analyst
As a CSRSS Server DLL, the console server in WINSRV.DLL implements API routines which a CSRSS client can call through the NTDLL function CsrClientCallServer and which other DLLs in the CSRSS.EXE server process may be allowed to call through the CSRSRV function CsrCallServerFromServer. Although most CSRSS server DLLs allow most API routines to be called from the server process, the console server does not. For the following table, an API routine is invalid as a server call unless explicitly noted as valid.
The console server was discontinued in Windows 8 but although it persists in Windows 7 it has no API dispatch table, functionality having been removed to the separate CONHOST.EXE process.
The console server’s API routines each have the prototype
ULONG ApiRoutine (CSR_API_MSG *, CSR_REPLY_STATUS *);
The caller selects a routine by specifying an API number. The high word is a 0-based index for the console server as a CSRSS server DLL. Known clients and WINSRV itself (for the slightly different matter of accessing server-specific per-process data) assume that this index is 2. Whatever symbolic names Microsoft has for the API numbers as constants to use when calling the corresponding API routines are not known. The table below gives only the name of each API routine as known from public symbol files for WINSRV.DLL.
| API Number | API Routine | Versions | Remarks |
|---|---|---|---|
| 0x00020200 | SrvOpenConsole | 3.10 to 6.0 | |
| 0x00020201 | SrvGetConsoleInput | 3.10 to 6.0 | |
| 0x00020202 | SrvWriteConsoleInput | 3.10 to 6.0 | |
| 0x00020203 | SrvReadConsoleOutput | 3.10 to 6.0 | |
| 0x00020204 | SrvWriteConsoleOutput | 3.10 to 6.0 | |
| 0x00020205 | SrvReadConsoleOutputString | 3.10 to 6.0 | |
| 0x00020206 | SrvWriteConsoleOutputString | 3.10 to 6.0 | |
| 0x00020207 | SrvFillConsoleOutput | 3.10 to 6.0 | |
| 0x00020208 | SrvGetConsoleMode | 3.10 to 6.0 | |
| 0x00020209 | SrvGetConsoleNumberOfFonts | 3.10 to 6.0 | |
| 0x0002020A | SrvGetConsoleNumberOfInputEvents | 3.10 to 6.0 | |
| 0x0002020B | SrvGetConsoleScreenBufferInfo | 3.10 to 6.0 | |
| 0x0002020C | SrvGetConsoleCursorInfo | 3.10 to 6.0 | |
| 0x0002020D | SrvGetConsoleMouseInfo | 3.10 to 6.0 | |
| 0x0002020E | SrvGetConsoleFontInfo | 3.10 to 6.0 | |
| 0x0002020F | SrvGetConsoleFontSize | 3.10 to 6.0 | |
| 0x00020210 | SrvGetConsoleCurrentFont | 3.10 to 6.0 | |
| 0x00020211 | SrvSetConsoleMode | 3.10 to 6.0 | |
| 0x00020212 | SrvSetConsoleActiveScreenBuffer | 3.10 to 6.0 | |
| 0x00020213 | SrvFlushConsoleInputBuffer | 3.10 to 6.0 | |
| 0x00020214 | SrvGetLargestConsoleWindowSize | 3.10 to 6.0 | |
| 0x00020215 | SrvSetConsoleScreenBufferSize | 3.10 to 6.0 | |
| 0x00020216 | SrvSetConsoleCursorPosition | 3.10 to 6.0 | |
| 0x00020217 | SrvSetConsoleCursorInfo | 3.10 to 6.0 | |
| 0x00020218 | SrvSetConsoleWindowInfo | 3.10 to 6.0 | |
| 0x00020219 | SrvScrollConsoleScreenBuffer | 3.10 to 6.0 | |
| 0x0020021A | SrvSetConsoleTextAttribute | 3.10 to 6.0 | |
| 0x0002021B | SrvSetConsoleFont | 3.10 to 6.0 | |
| 0x0002021C | SrvSetConsoleIcon | 4.0 to 6.0 | |
| 0x0002021C (3.10 to 3.51); 0x0002021D |
SrvReadConsole | 3.10 to 6.0 | |
| 0x0002021D (3.10 to 3.51); 0x0002021E |
SrvWriteConsole | 3.10 to 6.0 | |
| 0x0002021E (3.10 to 3.51); 0x0002021F |
SrvDuplicateHandle | 3.10 to 6.0 | |
| 0x00020220 | SrvGetHandleInformation | 5.0 to 6.0 | |
| 0x00020221 | SrvSetHandleInformation | 5.0 to 6.0 | |
| 0x0002021F (3.10 to 3.51); 0x00020220 (4.0); 0x00020222 |
SrvCloseHandle | 3.10 to 6.0 | |
| 0x00020220 (3.10 to 3.51); 0x00020221 (4.0); 0x00020223 |
SrvVerifyConsoleIoHandle | 3.10 to 6.0 | |
| 0x00020221 (3.10 to 3.51); 0x00020222 (4.0); 0x00020224 |
SrvAllocConsole | 3.10 to 6.0 | |
| 0x00020222 (3.10 to 3.51); 0x00020223 (4.0); 0x00020225 |
SrvFreeConsole | 3.10 to 6.0 | |
| 0x00020223 (3.10 to 3.51); 0x00020224 (4.0); 0x00020226 |
SrvGetConsoleTitle | 3.10 to 6.0 | |
| 0x00020224 (3.10 to 3.51); 0x00020025 (4.0); 0x00020027 |
SrvSetConsoleTitle | 3.10 to 6.0 | |
| 0x00020225 (3.10 to 3.51); 0x00020226 (4.0); 0x00020228 |
SrvCreateConsoleScreenBuffer | 3.10 to 6.0 | |
| 0x00020226 (3.10 to 3.51); 0x00020227 (4.0); 0x00020229 |
SrvInvalidateBitMapRect | 3.10 to 6.0 | |
| 0x00020227 (3.10 to 3.51); 0x00020228 (4.0); 0x0002022A |
SrvVDMConsoleOperation | 3.10 to 6.0 | |
| 0x00020228 (3.10 to 3.51); 0x00020229 (4.0); 0x0002022B |
SrvSetConsoleCursor | 3.10 to 6.0 | |
| 0x00020229 (3.10 to 3.51); 0x0002022A (4.0); 0x0002022C |
SrvShowConsoleCursor | 3.10 to 6.0 | |
| 0x0002022A (3.10 to 3.51); 0x0002022B (4.0); 0x0002022D |
SrvConsoleMenuControl | 3.10 to 6.0 | |
| 0x0002022B (3.10 to 3.51); 0x0002022C (4.0); 0x0002022E |
SrvSetConsolePalette | 3.10 to 6.0 | |
| 0x0002022C (3.10 to 3.51); 0x0002022D (4.0); 0x0002022F |
SrvSetConsoleDisplayMode | 3.10 to 6.0 | |
| 0x0002022D (3.10 to 3.51); 0x0002022E (4.0); 0x00020230 |
SrvRegisterConsoleVDM | 3.10 to 6.0 | |
| 0x0002022E (3.10 to 3.51); 0x0002022F (4.0); 0x00020231 |
SrvGetConsoleHardwareState | 3.10 to 6.0 | |
| 0x0002022F (3.10 to 3.51); 0x00020230 (4.0); 0x00020232 |
SrvSetConsoleHardwareState | 3.10 to 6.0 | |
| 0x00020230 (3.10 to 3.51); 0x00020231 (4.0); 0x00020233 |
SrvGetConsoleDisplayMode | 3.10 to 6.0 | valid as server call in 3.51 to 6.0 |
| 0x00020231 (3.10 to 3.51); 0x00020232 (4.0); 0x00020234 |
SrvAddConsoleAlias | 3.10 to 6.0 | |
| 0x00020232 (3.10 to 3.51); 0x00020233 (4.0); 0x00020235 |
SrvGetConsoleAlias | 3.10 to 6.0 | |
| 0x00020233 (3.10 to 3.51); 0x00020234 (4.0); 0x00020236 |
SrvGetConsoleAliasesLength | 3.10 to 6.0 | |
| 0x00020234 (3.10 to 3.51); 0x00020235 (4.0); 0x00020237 |
SrvGetConsoleAliasExesLength | 3.10 to 6.0 | |
| 0x00020235 (3.10 to 3.51); 0x00020236 (4.0); 0x00020238 |
SrvGetConsoleAliases | 3.10 to 6.0 | |
| 0x00020236 (3.10 to 3.51); 0x00020237 (4.0); 0x00020239 |
SrvGetConsoleAliasExes | 3.10 to 6.0 | |
| 0x00020237 (3.10 to 3.51); 0x00020238 (4.0); 0x0002023A |
SrvExpungeConsoleCommandHistory | 3.10 to 6.0 | |
| 0x00020238 (3.10 to 3.51); 0x00020239 (4.0); 0x0002023B |
SrvSetConsoleNumberOfCommands | 3.10 to 6.0 | |
| 0x00020239 (3.10 to 3.51); 0x0002023A (4.0); 0x0002023C |
SrvGetConsoleCommandHistoryLength | 3.10 to 6.0 | |
| 0x0002023A (3.10 to 3.51); 0x0002023B (4.0); 0x0002023D |
SrvGetConsoleCommandHistory | 3.10 to 6.0 | |
| 0x0002023B (3.10 to 3.51); 0x00020023C (4.0); 0x00020023E (5.0 to 5.2) |
SrvSetConsoleCommandHistoryMode | 3.10 to 5.2 | |
| 0x0002023C (3.10 to 3.51); 0x0002023D (4.0); 0x0002023F (5.0 to 5.2); 0x0002023E |
SrvGetConsoleCP | 3.10 to 6.0 | |
| 0x0002023D (3.10 to 3.51); 0x0002023E (4.0); 0x00020240 (5.0 to 5.2); 0x0002023F |
SrvSetConsoleCP | 3.10 to 6.0 | |
| 0x0002023E (3.10 to 3.51); 0x0002023F (4.0); 0x00020241 (5.0 to 5.2); 0x00020240 |
SrvSetConsoleKeyShortcuts | 3.10 to 6.0 | |
| 0x0002023F (3.10 to 3.51); 0x00020240 (4.0); 0x00020242 (5.0 to 5.2); 0x00020241 |
SrvSetConsoleMenuClose | 3.10 to 6.0 | |
| 0x00020240 (3.10 to 3.51); 0x00020241 (4.0); 0x00020243 (5.0 to 5.2); 0x00020242 |
SrvConsoleNotifyLastClose | 3.10 to 6.0 | |
| 0x00020241 (3.10 to 3.51); 0x00020242 (4.0); 0x00020244 (5.0 to 5.2); 0x00020243 |
SrvGenerateConsoleCtrlEvent | 3.10 to 6.0 | |
| 0x00020242 (3.10) | SrvConsoleSubst | 3.10 only | |
| 0x00020243 (4.0); 0x00020245 (5.0 to 5.2); 0x00020244 |
SrvGetConsoleKeyboardLayoutName | 4.0 to 6.0 | |
| 0x00020246 (5.0 to 5.2); 0x00020245 |
SrvGetConsoleWindow | 5.0 to 6.0 | |
| 0x00020247 (5.0 to 5.2); 0x00020246 |
SrvGetConsoleCharType | 5.0 to 6.0 | |
| 0x00020248 (5.0 to 5.2); 0x00020247 |
SrvSetConsoleLocalEUDC | 5.0 to 6.0 | |
| 0x00020249 (5.0 to 5.2); 0x00020248 |
SrvSetConsoleCursorMode | 5.0 to 6.0 | |
| 0x0002024A (5.0 to 5.2); 0x00020249 |
SrvGetConsoleCursorMode | 5.0 to 6.0 | |
| 0x0002024B (5.0 to 5.2); 0x0002024A |
SrvRegisterConsoleOS2 | 5.0 to 6.0 | |
| 0x0002024C (5.0 to 5.2); 0x0002024B |
SrvSetConsoleOS2OemFormat | 5.0 to 6.0 | |
| 0x0002024D (5.0 to 5.2); 0x0002024C |
SrvGetConsoleNlsMode | 5.0 to 6.0 | |
| 0x0002024E (5.0 to 5.2); 0x0002024D |
SrvSetConsoleNlsMode | 5.0 to 6.0 | |
| 0x0002024F (5.0 to 5.2); 0x0002024E |
SrvRegisterConsoleIME | 5.0 to 6.0 | |
| 0x00020250 (5.0 to 5.2); 0x0002024F |
SrvUnregisterConsoleIME | 5.0 to 6.0 | |
| 0x00020250 | SrvQueryConsoleIME | 6.0 only | |
| 0x00020251 | SrvGetConsoleLangId | 5.0 to 6.0 | |
| 0x00020252 | SrvAttachConsole | 5.1 to 6.0 | |
| 0x00020253 | SrvGetConsoleSelectionInfo | 5.1 to 6.0 | |
| 0x00020254 | SrvGetConsoleProcessList | 5.1 to 6.0 | |
| 0x00020255 | SrvGetConsoleHistory | 6.0 only | |
| 0x00020256 | SrvSetConsoleHistory | 6.0 only | |
| 0x00020257 | SrvSetConsoleCurrentFont | 6.0 only | |
| 0x00020258 | SrvSetScreenBufferInfo | 6.0 only |