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ReadConsoleOutputCharacter info  Overview  Group

The ReadConsoleOutputCharacter function copies a number of characters from consecutive cells of a console screen buffer, beginning at a specified location.

BOOL ReadConsoleOutputCharacter(

    HANDLE hConsoleOutput,

// handle of a console screen buffer

    LPTSTR lpCharacter,

// address of buffer to receive characters

    DWORD nLength,

// number of character cells to read from

    COORD dwReadCoord,

// coordinates of first cell to read from

    LPDWORD lpNumberOfCharsRead 

// address of number of cells read from

   );

Parameters

hConsoleOutput
Identifies a console screen buffer. The handle must have GENERIC_READ access.
lpCharacter
Points to a buffer that receives the characters read from the screen buffer.
nLength
Specifies the number of screen buffer character cells from which to read. The size of the buffer pointed to by the lpCharacter parameter should be nLength * sizeof(TCHAR).
dwReadCoord
Specifies the coordinates of the first cell in the screen buffer from which to read. The X member of the COORD structure is the column, and the Y member is the row.
lpNumberOfCharsRead
Points to a 32-bit variable that receives the number of characters actually read.

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks

If the number of characters to be read from extends beyond the end of the specified screen buffer row, characters are read from the next row. If the number of characters to be read from extends beyond the end of the screen buffer, characters up to the end of the screen buffer are read.

Windows NT: This function uses either Unicode characters or 8-bit characters from the console's current codepage. The console's codepage defaults initially to the system's OEM codepage. To change the console's codepage, use the SetConsoleCP or SetConsoleOutputCP functions, or use the chcp or mode con cp select= commands.

See Also

COORD, ReadConsoleOutput, ReadConsoleOutputAttribute, SetConsoleCP, SetConsoleOutputCP, WriteConsoleOutput, WriteConsoleOutputAttribute, WriteConsoleOutputCharacter

See also:


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