Screenpuffer verwalten

Question

#include <windows.h> 
#include <stdio.h>

int main(void) 
{ 
    HANDLE hStdout, hNewScreenBuffer; 
    SMALL_RECT srctReadRect; 
    SMALL_RECT srctWriteRect; 
    CHAR_INFO chiBuffer[160]; // [2][80]; 
    COORD coordBufSize; 
    COORD coordBufCoord; 
    BOOL fSuccess; 

    // Get a handle to the STDOUT screen buffer to copy from and 
    // create a new screen buffer to copy to. 

    hStdout = GetStdHandle(STD_OUTPUT_HANDLE); 
    hNewScreenBuffer = CreateConsoleScreenBuffer( 
       GENERIC_READ |           // read/write access 
       GENERIC_WRITE, 
       FILE_SHARE_READ | 
       FILE_SHARE_WRITE,        // shared 
       NULL,                    // default security attributes 
       CONSOLE_TEXTMODE_BUFFER, // must be TEXTMODE 
       NULL);                   // reserved; must be NULL 
    if (hStdout == INVALID_HANDLE_VALUE || 
            hNewScreenBuffer == INVALID_HANDLE_VALUE) 
    {
        printf("CreateConsoleScreenBuffer failed - (%d)\n", GetLastError()); 
        return 1;
    }

    // Make the new screen buffer the active screen buffer. 

    if (! SetConsoleActiveScreenBuffer(hNewScreenBuffer) ) 
    {
        printf("SetConsoleActiveScreenBuffer failed - (%d)\n", GetLastError()); 
        return 1;
    }

    // Set the source rectangle. 

    srctReadRect.Top = 0;    // top left: row 0, col 0 
    srctReadRect.Left = 0; 
    srctReadRect.Bottom = 1; // bot. right: row 1, col 79 
    srctReadRect.Right = 79; 

    // The temporary buffer size is 2 rows x 80 columns. 

    coordBufSize.Y = 2; 
    coordBufSize.X = 80; 

    // The top left destination cell of the temporary buffer is 
    // row 0, col 0. 

    coordBufCoord.X = 0; 
    coordBufCoord.Y = 0; 

    // Copy the block from the screen buffer to the temp. buffer. 

    fSuccess = ReadConsoleOutput( 
       hStdout,        // screen buffer to read from 
       chiBuffer,      // buffer to copy into 
       coordBufSize,   // col-row size of chiBuffer 
       coordBufCoord,  // top left dest. cell in chiBuffer 
       &srctReadRect); // screen buffer source rectangle 
    if (! fSuccess) 
    {
        printf("ReadConsoleOutput failed - (%d)\n", GetLastError()); 
        return 1;
    }

    // Set the destination rectangle. 

    srctWriteRect.Top = 10;    // top lt: row 10, col 0 
    srctWriteRect.Left = 0; 
    srctWriteRect.Bottom = 11; // bot. rt: row 11, col 79 
    srctWriteRect.Right = 79; 

    // Copy from the temporary buffer to the new screen buffer. 

    fSuccess = WriteConsoleOutput( 
        hNewScreenBuffer, // screen buffer to write to 
        chiBuffer,        // buffer to copy from 
        coordBufSize,     // col-row size of chiBuffer 
        coordBufCoord,    // top left src cell in chiBuffer 
        &srctWriteRect);  // dest. screen buffer rectangle 
    if (! fSuccess) 
    {
        printf("WriteConsoleOutput failed - (%d)\n", GetLastError()); 
        return 1;
    }
    Sleep(5000); 

    // Restore the original active screen buffer. 

    if (! SetConsoleActiveScreenBuffer(hStdout)) 
    {
        printf("SetConsoleActiveScreenBuffer failed - (%d)\n", GetLastError()); 
        return 1;
    }

    return 0;
}

Answer 1

Hallo DG7BBA,

Würdest Du Dein Anliegen näher beschreiben? Ich habe den Threadtitel geändert, um den Verdacht einer Werbung zu zerstreuen.

Gruß,
Dimitar

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