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C/C++ Source or Header  |  1994-12-07  |  3.0 KB  |  72 lines
  1. //*---------------------------------------------------------------------------------
  2. //|  ODBC System Administrator
  3. //|
  4. //|  This code is furnished on an as-is basis as part of the ODBC SDK and is
  5. //|  intended for example purposes only.
  6. //|
  7. //|    Title:    CHILD.H
  8. //|        This files sole purpose in life is to define the CHILDINFO type
  9. //|            which is the main data structure for a connection window.
  10. //*---------------------------------------------------------------------------------
  11. #ifndef child_DEFS
  12. #define child_DEFS
  13.  
  14. #include <Windows.h>
  15. #include <stdlib.h>
  16. #include "commdlg.h"
  17. #include "standard.h"
  18. #include "menu.h"
  19. #include "results.h"
  20. #include "sql.h"
  21. #include "sqlext.h"
  22.  
  23. #define MAXCONNECTS            15
  24.  
  25.  
  26. //*------------------------------------------------------------------------
  27. //|  The following structure is used to keep track of the vital pieces of
  28. //|        information for each child MDI window.  The actual structure is
  29. //|        stored with the window and can be extracted with only the window
  30. //|        handle.
  31. //*------------------------------------------------------------------------
  32. typedef struct tagCHILDINFO {
  33.     HINSTANCE         hInst;                                //    Handle to our data segment
  34.     HWND                hwndClient;                            // Handle to client window 
  35.     HWND                hwnd;                                    // Handle to the child window
  36.     HWND                hwndIn;                                // Input window
  37.     HWND                hwndOut;                                //    Output window
  38.     HENV                henv;                                    // Environment handle for application
  39.     HDBC                 hdbc;                                    // Connection handle of this window
  40.     HSTMT                hstmt;                                //    Statement handle for this window
  41.  
  42.     // Display information
  43.     int                dx;                                    // Width of client area
  44.     int                dy;                                    // Height of client area
  45.     
  46.     char                szConnStrOut[DFTBUFFSIZE];        // Save returned connect string
  47.     char                CurrentUser[DFTBUFFSIZE];        // Name of user logged on this window
  48.     char                CurrentServer[DFTBUFFSIZE];    // Server connected to in this window
  49.     int                listtype;                            // What are we listing
  50.     char                szClientTitle[MAXBUFF];            // Title for the window
  51.     UDWORD            fFunctions[MINREQUIREDINTS(NUM_MENU_FLAGS)];   
  52.                                                                 // bitmask to track supported functions
  53.     HFILE                hFile;                                // Pointer to file
  54.     char              szFile[_MAX_PATH];                // Name of the file
  55.     int               cbFileSize;                            // How big is the file
  56.     LPSTR              szFileBuff;                            // Memory for the file
  57.     int                cbResultCount;                        // Incremental counter of results windows
  58.     int                cbMaxRS;                                // Maximum results windows
  59.     int                cbResults;                            // Current count of results sets
  60.     LPVOID            lprihead;                            // Head node
  61.     LPVOID            lpritail;                            // Tail node
  62.     } CHILDINFO, FAR * lpCHILDINFO;                                   
  63.  
  64.  
  65. // Since this is an MDI app, we will store the connection window information with
  66. // the window handle and must then get this value for each message processed.
  67. // This little macro simply sets the value of ci based on the window
  68. #define GETCIPOINTER(hwnd)    (lpCHILDINFO)(GetWindowLong(hwnd, 0))
  69. #define SETCIPOINTER(hwnd, x) SetWindowLong(hwnd, 0, (LONG)(x))
  70.  
  71. #endif
  72.