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Annotation of mstools/samples/console/fillchar.c, revision 1.1.1.2

1.1       root        1: #include <windows.h>
                      2: #include "console.h"
                      3: 
1.1.1.2 ! root        4: /* Microsoft Developer Support
        !             5:    Copyright (c) 1992 Microsoft Corporation */
        !             6: 
1.1       root        7: /*******************************************************************
                      8: * FUNCTION: demoFillChar(HANDLE hConOut)                           *
                      9: *                                                                  *
                     10: * PURPOSE: demonstrate FillConsoleOutputCharacter. Fill the entire *
                     11: *          console with the character that the user hits           *
                     12: *                                                                  *
                     13: * INPUT: the output console to fill with characters                *
                     14: ********************************************************************/
                     15: 
                     16: void demoFillChar(HANDLE hConOut)
                     17: {
                     18:   HANDLE hStdIn;
                     19:   INPUT_RECORD inputBuf;
                     20:   CHAR c; /* ascii character read from the console */
                     21:   CONSOLE_SCREEN_BUFFER_INFO csbi;
                     22:   COORD coordScreen = {0, 1}; /* location to start the attribute fill */
                     23:   DWORD cCharsWritten;
                     24:   BOOL bSuccess; 
                     25:   DWORD cInputEvents;
                     26: 
                     27:   setConTitle(__FILE__);
                     28:   myPuts(hConOut, "Let's fill the console buffer with a given character by\n"
                     29:                   "using the FillConsoleOutputCharacter API. Hit a key to \n"
                     30:                   "fill the buffer with (hit ESC to return):");
                     31:   hStdIn = GetStdHandle(STD_INPUT_HANDLE);
1.1.1.2 ! root       32:   PERR(hStdIn != INVALID_HANDLE_VALUE, "GetStdHandle");
1.1       root       33:   for(;;)
                     34:     {
                     35:     do
                     36:       {
                     37:       /* get input events until you get a key-down event */
                     38:       bSuccess = ReadConsoleInput(hStdIn, &inputBuf, 1, &cInputEvents);
                     39:       PERR(bSuccess, "ReadConsoleInput");
                     40:       } while (inputBuf.EventType != KEY_EVENT ||
                     41:             !inputBuf.Event.KeyEvent.bKeyDown);
                     42:     c = (char) inputBuf.Event.KeyEvent.uChar.AsciiChar;
                     43:     if (inputBuf.Event.KeyEvent.wVirtualKeyCode == VK_ESCAPE)
                     44:       break;
                     45:     /* we need to get the console buffer size */
                     46:     bSuccess = GetConsoleScreenBufferInfo(hConOut, &csbi);
                     47:     PERR(bSuccess, "GetConsoleScreenBufferInfo");
                     48:     bSuccess = FillConsoleOutputCharacter(hConOut, /* screen buffer handle */
                     49:         c, /* character to write */
                     50:         (csbi.dwSize.X * csbi.dwSize.Y) - csbi.dwSize.X, /* number of chars */
                     51:         coordScreen, /* x and y coordinates of first cell */
                     52:         &cCharsWritten); /* receives number of cells written to */
                     53:     PERR(bSuccess, "FillConsoleOutputCharacter");
                     54:   }
                     55:   return;
                     56: }

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