不属于BitMap类如何进行

如果不使用 `Bitmap` 类，可以使用 Windows 提供的 GDI（图形设备接口）库来操作 BMP 图片。下面是一个简单的示例代码，演示了如何使用 GDI 库实现 BMP 图片的 RLE 压缩和解压缩：

#include <windows.h>

// 压缩 BMP 图片
bool CompressBmp(LPCTSTR lpszSrcFile, LPCTSTR lpszDstFile)
{
    // 打开 BMP 文件
    HANDLE hFile = CreateFile(lpszSrcFile, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
    if (hFile == INVALID_HANDLE_VALUE)
    {
        return false;
    }

    // 读取 BMP 文件头
    BITMAPFILEHEADER bmfHeader;
    DWORD dwBytesRead;
    if (!ReadFile(hFile, &bmfHeader, sizeof(BITMAPFILEHEADER), &dwBytesRead, NULL) || dwBytesRead != sizeof(BITMAPFILEHEADER))
    {
        CloseHandle(hFile);
        return false;
    }

    // 读取 BMP 位图信息头
    BITMAPINFOHEADER bmiHeader;
    if (!ReadFile(hFile, &bmiHeader, sizeof(BITMAPINFOHEADER), &dwBytesRead, NULL) || dwBytesRead != sizeof(BITMAPINFOHEADER))
    {
        CloseHandle(hFile);
        return false;
    }

    // 计算行字节数
    int nBytesPerLine = (bmiHeader.biWidth * bmiHeader.biBitCount + 7) / 8;
    nBytesPerLine = (nBytesPerLine + 3) / 4 * 4;

    // 计算压缩后的 BMP 数据区大小
    DWORD dwCompressedSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + (nBytesPerLine * bmiHeader.biHeight + bmiHeader.biHeight) / 2;

    // 分配压缩后的 BMP 数据区
    BYTE* pCompressedData = new BYTE[dwCompressedSize];
    memset(pCompressedData, 0, dwCompressedSize);

    // 填充压缩后的 BMP 文件头
    BITMAPFILEHEADER bmfCompressedHeader;
    bmfCompressedHeader.bfType = 0x4d42;
    bmfCompressedHeader.bfSize = dwCompressedSize;
    bmfCompressedHeader.bfReserved1 = 0;
    bmfCompressedHeader.bfReserved2 = 0;
    bmfCompressedHeader.bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);

    // 填充压缩后的 BMP 位图信息头
    BITMAPINFOHEADER bmiCompressedHeader;
    bmiCompressedHeader.biSize = sizeof(BITMAPINFOHEADER);
    bmiCompressedHeader.biWidth = bmiHeader.biWidth;
    bmiCompressedHeader.biHeight = bmiHeader.biHeight;
    bmiCompressedHeader.biPlanes = 1;
    bmiCompressedHeader.biBitCount = bmiHeader.biBitCount;
    bmiCompressedHeader.biCompression = BI_RLE4;
    bmiCompressedHeader.biSizeImage = 0;
    bmiCompressedHeader.biXPelsPerMeter = 0;
    bmiCompressedHeader.biYPelsPerMeter = 0;
    bmiCompressedHeader.biClrUsed = 0;
    bmiCompressedHeader.biClrImportant = 0;

    // 填充压缩后的 BMP 数据
    memcpy(pCompressedData, &bmfCompressedHeader, sizeof(BITMAPFILEHEADER));
    memcpy(pCompressedData + sizeof(BITMAPFILEHEADER), &bmiCompressedHeader, sizeof(BITMAPINFOHEADER));

    BYTE* pCompressedLineData = pCompressedData + sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
    BYTE* pLineData = new BYTE[nBytesPerLine];
    for (int i = 0; i < bmiHeader.biHeight; i++)
    {
        // 读取一行 BMP 数据
        if (!ReadFile(hFile, pLineData, nBytesPerLine, &dwBytesRead, NULL) || dwBytesRead != nBytesPerLine)
        {
            delete[] pLineData;
            delete[] pCompressedData;
            CloseHandle(hFile);
            return false;
        }

        // 压缩一行 BMP 数据
        int nCompressedLineSize = nBytesPerLine;
        int nCompressedLineOffset = 0;
        while (nCompressedLineOffset < nCompressedLineSize)
        {
            int nRunLength = 1;
            BYTE bCode = 0x00;

            // 计算重复值或非重复值的数量
            while (nCompressedLineOffset + nRunLength < nCompressedLineSize && nRunLength <= 0x0f)
            {
                if (pLineData[nCompressedLineOffset + nRunLength] == pLineData[nCompressedLineOffset])
                {
                    bCode = 0x00;
                    nRunLength++;
                }
                else
                {
                    bCode = 0x01;
                    break;
                }
            }

            // 写入非重复值的编码和数据
            if (bCode == 0x01)
            {
                *pCompressedLineData++ = (BYTE)(nRunLength | 0x80);
                for (int j = 0; j < nRunLength; j++)
                {
                    *pCompressedLineData++ = pLineData[nCompressedLineOffset + j];
                }
            }
            // 写入重复值的编码和数据
            else
            {
                *pCompressedLineData++ = (BYTE)(nRunLength - 1);
                *pCompressedLineData++ = pLineData[nCompressedLineOffset];
            }

            nCompressedLineOffset += nRunLength;
        }

        // 写入行结束标志
        *pCompressedLineData++ = 0x00;
        *pCompressedLineData++ = 0x00;
    }

    // 保存压缩后的 BMP 图片
    DWORD dwBytesWritten;
    SetFilePointer(hFile, 0, NULL, FILE_BEGIN);
    WriteFile(hFile, pCompressedData, dwCompressedSize, &dwBytesWritten, NULL);
    CloseHandle(hFile);

    delete[] pLineData;
    delete[] pCompressedData;

    return true;
}

// 解压缩 BMP 图片
bool DecompressBmp(LPCTSTR lpszSrcFile, LPCTSTR lpszDstFile)
{
    // 打开 BMP 文件
    HANDLE hFile = CreateFile(lpszSrcFile, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
    if (hFile == INVALID_HANDLE_VALUE)
    {
        return false;
    }

    // 读取 BMP 文件头
    BITMAPFILEHEADER bmfHeader;
    DWORD dwBytesRead;
    if (!ReadFile(hFile, &bmfHeader, sizeof(BITMAPFILEHEADER), &dwBytesRead, NULL) || dwBytesRead != sizeof(BITMAPFILEHEADER))
    {
        CloseHandle(hFile);
        return false;
    }

    // 读取 BMP 位图信息头
    BITMAPINFOHEADER bmiHeader;
    if (!ReadFile(hFile, &bmiHeader, sizeof(BITMAPINFOHEADER), &dwBytesRead, NULL) || dwBytesRead != sizeof(BITMAPINFOHEADER))
    {
        CloseHandle(hFile);
        return false;
    }

    // 计算行字节数
    int nBytesPerLine = (bmiHeader.biWidth * bmiHeader.biBitCount + 7) / 8;
    nBytesPerLine = (nBytesPerLine + 3) / 4 * 4;

    // 计算解压缩后的 BMP 数据区大小
    DWORD dwUncompressedSize = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + nBytesPerLine * bmiHeader.biHeight;

    // 分配解压缩后的 BMP 数据区
    BYTE* pUncompressedData = new BYTE[dwUncompressedSize];
    memset(pUncompressedData, 0, dwUncompressedSize);

    // 填充解压缩后的 BMP 文件头
    BITMAPFILEHEADER bmfUncompressedHeader;
    bmfUncompressedHeader.bfType = 0x4d42;
    bmfUncompressedHeader.bfSize = dwUncompressedSize;
    bmfUncompressedHeader.bfReserved1 = 0;
    bmfUncompressedHeader.bfReserved2 = 0;
    bmfUncompressedHeader.bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);

    // 填充解压缩后的 BMP 位图信息头
    BITMAPINFOHEADER bmiUncompressedHeader;
    bmiUncompressedHeader.biSize = sizeof(BITMAPINFOHEADER);
    bmiUncompressedHeader.biWidth = bmiHeader.biWidth;
    bmiUncompressedHeader.biHeight = bmiHeader.biHeight;
    bmiUncompressedHeader.biPlanes