Scott Duensing
d68405550d
Resolve GPFs in both USER.EXE and COMMTASK.DLL by correcting RETF sizes for SETCOM and GETDCB, confirmed by disassembling CyberCom.DRV. Add stock-compatible ComDEB structure so third-party code (ProComm COMMTASK.DLL) can safely access internal fields at known offsets per Microsoft KB Q101417. COMM.DRV changes: - SETCOM (ord 2): RETF 4, takes DCB FAR * only (not commId + DCB*) - GETDCB (ord 15): RETF 2, takes commId, returns DCB FAR * in DX:AX - Add 40-byte ComDebT matching stock COMM.DRV internal layout (evtWord at +0, MSR shadow at +35, queue counts at +8/+18) - cevt returns pointer to ComDebT for third-party compatibility - Sync ComDEB fields in ISR dispatch, reccom, sndcom, cflush, setque - Move WEP to ordinal 16, add ordinal 101 stub (match stock/CyberCom) - Default DBG_ENABLED to 0 (set to 1 to re-enable debug logging) VBX control fixes: - Fix SETBREAK/CLRBREAK constants (use numeric 8/9, not undefined macros) - Fix serialEnableNotify return type (BOOL, not int16_t) - Fix mscomm.h to work with RC compiler (#ifndef RC_INVOKED) - Fix vbapi.h USHORT typedef and MODEL.flWndStyle type - Add vbapi.lib dependency to makefile Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
145 lines
5.8 KiB
C
145 lines
5.8 KiB
C
// mscomm.h - MSComm VBX control definitions
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//
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// Property/event IDs, comm event constants, and control instance data.
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#ifndef MSCOMM_H
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#define MSCOMM_H
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// -----------------------------------------------------------------------
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// Resource IDs
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// -----------------------------------------------------------------------
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#define IDB_MSCOMM 8000
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#ifndef RC_INVOKED
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#include "vbapi.h"
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#include "serial.h"
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// -----------------------------------------------------------------------
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// stdint types for MSVC 1.52 (shared with serial.h)
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// -----------------------------------------------------------------------
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#ifndef _STDINT_DEFINED
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typedef short int16_t;
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typedef unsigned short uint16_t;
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typedef long int32_t;
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typedef unsigned long uint32_t;
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typedef unsigned char uint8_t;
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typedef signed char int8_t;
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#define _STDINT_DEFINED
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#endif
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// -----------------------------------------------------------------------
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// Property indices (position in npproplist array)
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// -----------------------------------------------------------------------
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#define IPROP_CTLNAME 0
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#define IPROP_INDEX 1
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#define IPROP_TAG 2
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#define IPROP_COMMPORT 3
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#define IPROP_SETTINGS 4
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#define IPROP_PORTOPEN 5
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#define IPROP_INPUT 6
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#define IPROP_OUTPUT 7
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#define IPROP_INBUFFERSIZE 8
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#define IPROP_OUTBUFFERSIZE 9
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#define IPROP_INBUFFERCOUNT 10
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#define IPROP_OUTBUFFERCOUNT 11
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#define IPROP_RTHRESHOLD 12
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#define IPROP_STHRESHOLD 13
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#define IPROP_HANDSHAKING 14
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#define IPROP_INPUTLEN 15
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#define IPROP_INPUTMODE 16
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#define IPROP_DTRENABLE 17
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#define IPROP_RTSENABLE 18
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#define IPROP_CDHOLDING 19
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#define IPROP_CTSHOLDING 20
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#define IPROP_DSRHOLDING 21
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#define IPROP_BREAK 22
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#define IPROP_COMMEVENT 23
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#define IPROP_NULLDISCARD 24
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#define IPROP_EOFENABLE 25
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#define IPROP_PARITYREPLACE 26
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// -----------------------------------------------------------------------
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// Event indices (position in npeventlist array)
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// -----------------------------------------------------------------------
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#define IEVENT_ONCOMM 0
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// -----------------------------------------------------------------------
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// CommEvent constants - Communication events
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// -----------------------------------------------------------------------
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#define COM_EV_RECEIVE 1 // Received RThreshold bytes
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#define COM_EV_SEND 2 // Transmit buffer has SThreshold space
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#define COM_EV_CTS 3 // CTS line changed
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#define COM_EV_DSR 4 // DSR line changed
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#define COM_EV_CD 5 // CD (RLSD) line changed
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#define COM_EV_RING 6 // Ring indicator detected
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#define COM_EV_EOF 7 // EOF character received
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// -----------------------------------------------------------------------
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// CommEvent constants - Error events
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// -----------------------------------------------------------------------
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#define COM_EVT_BREAK 1001 // Break signal received
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#define COM_EVT_FRAME 1004 // Framing error
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#define COM_EVT_OVERRUN 1006 // Hardware overrun
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#define COM_EVT_RXOVER 1008 // Receive buffer overflow
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#define COM_EVT_RXPARITY 1009 // Parity error
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#define COM_EVT_TXFULL 1010 // Transmit buffer full
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// -----------------------------------------------------------------------
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// Handshaking enum values
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// -----------------------------------------------------------------------
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#define HS_NONE 0
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#define HS_XONXOFF 1
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#define HS_RTSCTS 2
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#define HS_BOTH 3
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// -----------------------------------------------------------------------
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// InputMode enum values
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// -----------------------------------------------------------------------
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#define INPUT_TEXT 0
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#define INPUT_BINARY 1
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// -----------------------------------------------------------------------
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// Control instance data
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//
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// Allocated by VB as cbCtlExtra bytes per control instance.
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// Accessed via VBDerefControl(hctl).
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// -----------------------------------------------------------------------
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typedef struct {
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int16_t commId; // OpenComm handle (-1 = closed)
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HWND hwndNotify; // Hidden notification window
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int16_t commPort; // COM port number (1-16)
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HSZ hszSettings; // Settings string "baud,parity,data,stop"
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int16_t inBufferSize; // Receive buffer size in bytes
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int16_t outBufferSize; // Transmit buffer size in bytes
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int16_t rThreshold; // Receive event threshold (0=disabled)
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int16_t sThreshold; // Send event threshold (0=disabled)
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int16_t handshaking; // Handshaking mode (HS_*)
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int16_t inputLen; // Bytes to read per Input (0=all)
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int16_t inputMode; // Input mode (INPUT_TEXT/INPUT_BINARY)
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int16_t commEvent; // Last comm event code
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BOOL portOpen; // Port open state
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BOOL dtrEnable; // DTR line enable
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BOOL rtsEnable; // RTS line enable
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BOOL breakState; // Break signal active
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BOOL nullDiscard; // Discard null characters
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BOOL eofEnable; // Watch for EOF character
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BOOL ctsState; // Shadow state: CTS line level
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BOOL dsrState; // Shadow state: DSR line level
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BOOL cdState; // Shadow state: CD (RLSD) line level
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HSZ hszParityReplace; // Parity error replacement character
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} MsCommDataT;
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// -----------------------------------------------------------------------
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// Hidden notification window class name
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// -----------------------------------------------------------------------
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#define NOTIFY_CLASS "MsCommNotify"
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// -----------------------------------------------------------------------
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// Global instance handle (set in LibMain)
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// -----------------------------------------------------------------------
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extern HANDLE ghInstance;
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#endif // RC_INVOKED
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#endif // MSCOMM_H
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