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Annotation of mstools/samples/console/fillchar.c, revision 1.1

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

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