Click to open or copy the files for the QuryDemo sample.
Demonstrates a simple MDI (Multiple Document Interface) application that allows a user to simultaneously connect to multiple heterogeneous databases and perform SQL queries to get results.
The application uses MDI Child Window Titles to store values of PROVIDERs and Command Objects. These values are also stored in the combo boxes that are displayed on the toolbar.
Main.cpp Functions
| Function | Description |
| WinMain | Main routine |
| MainWndProc | Processes Main Application Window messages |
| MDIChildProc | Processes MDI child window messages |
| ToolbarProc | Processes tool bar messages |
| StatusbarProc | Processes status bar messages |
| ConnectDlgProc | Processes Connection dialog box messages |
| DisconnectDlgProc | Processes Disconnect dialog box messages |
| AboutDlgProc | Processes messages for About dialog box |
| MDIChildDlgProc | Processes messages for dummy child dialog box in MDI window |
| DrawBitmap | Draws bitmaps for toolbuttons |
Query.cpp Functions
| Function | Description |
| InitEnvironment | Initializes OLE |
| DisplayProviders | Displays available providers |
| ConnectDatabase | Connects to a specific data source |
| DisplayConnections | Displays list of made connections |
| DisplayICommands | Displays list of ICommands |
| NewICommandWindow | Opens a new ICommand and update displays |
| ChangeCurrentCursor | Changes current cursor display |
| ChangeCurrentICommand | Changes current ICommand display |
| DisplayNewCrsrAndICommand | Updates cursor and ICommand displays |
| FreeConnect | Frees an IDBCreateCommand |
| FreeICommand | Frees an ICommand |
| CloseICommandWindow | Closes an ICommand window |
| ExecuteQuery | Executes a user-specified query |
| CloseIDBCreateCommand | Checks if all connections are closed |
| FreeEnvironment | Frees OLE |
| ExecuteCommand | Executes the ICommand and returns an IRowset |
| GetDataFromRowset | Gets the data from the IRowset |
| SetupBindings | Sets the binding structure |
| CreateAccessor | Creates an accessor to store the data |
| GetData | Gets the data out of the rowset |
This sample uses the following keywords:
aboutdlgproc; activatewindow; assert; beginpaint; bindmoniker; bitblt; bringwindowtotop; changecurrentcursor; changecurrenticommand; cleanuprowset; closeicommandwindow; closeidbcreatecommand; cocreateinstance; cofreeunusedlibraries; cogetmalloc; coinitialize; connectdatabase; connectdlgproc; couninitialize; createaccessor; createcommand; createcompatibledc; createdialog; createpen; createsession; createwindow; ctl3dautosubclass; ctl3dcolorchange; ctl3dregister; ctl3dunregister; defframeproc; defmdichildproc; defwindowproc; deletedc; deleteobject; destroyicon; destroywindow; dialogbox; disconnectdlgproc; dispatchmessage; displayconnections; displaydatasource; displayicommands; displaynewcrsrandicommand; displayproviders; dptolp; drawbitmap; drawbttnlift1; drawbttnlift2; drawbttnrect; drawtext; dumperror; dumperrorhresult; dumprow; enablemenuitem; enablewindow; enddialog; endpaint; enumerateproviders; execute; executecommand; executequery; failed; findwindow; formatmessage; free; freeconnect; freeenvironment; freeicommand; freeprocinstance; get_wm_command_cmd; get_wm_command_hwnd; get_wm_command_id; get_wm_command_mps; get_wm_mdiactivate_factivate; get_wm_menuselect_cmd; get_wm_menuselect_flags; getcapture; getclassname; getclientrect; getcolumninfo; getcolumnsinfo; getdata; getdatafromrowset; getdc; getdlgitem; getdlgitemtext; geterrorinfo; getlastactivepopup; getmapmode; getmenu; getmenuitemcount; getmenuitemid; getmenustring; getmessage; getnextrows; getobject; getrowset; getschemarowset; getsourcesrowset; getstockobject; getsubmenu; getsyscolor; gettextextentpoint; getwindow; getwindowlong; getwindowrect; getwindowtext; id; initenvironment; initialize; interfacesupportserrorinfo; invalidaterect; isdialogmessage; isiconic; iszoomed; lineto; loadaccelerators; loadbitmap; loadcursor; loadicon; localalloc; localfree; localtime; mainwndproc; makeintresource; makelangid; malloc; max; mdichilddlgproc; mdichildproc; memset; messagebox; movetoex; movewindow; multibytetowidechar; newicommandwindow; newiopenrowsetwindow; numelem; offsetof; openicon; openrowset; parsedisplayname; postmessage; postquitmessage; ptinrect; queryinterface; rectangle; registerclass; release; releaseaccessor; releasecapture; releasedc; releaserows; resultfromscode; round_up; selectobject; sendmessage; setbkmode; setcapture; setcommandtext; setcursor; seterrorinfo; setfocus; setforegroundwindow; setmapmode; setproperties; settextcolor; settimer; setupbindings; setwindowlong; setwindowtext; showwindow; sprintf; sscanf; statusbarproc; strcat; strcmp; strcpy; strftime; strstr; succeeded; sysallocstring; time; toolbarproc; translateaccelerator; translatemdisysaccel; translatemessage; updatewindow; variantclear; variantinit; wcscpy; widechartomultibyte; winmain; wsprintf