public MyBitmapFile(int nWidth, int nHeight, IntPtr pImage)
{
m_fileHeaderBitmap = new BITMAPFILEHEADER();
m_infoBitmap = new BITMAPINFO();
int length = m_fileHeaderBitmap.SizeOfBFH + m_infoBitmap.SizeOfBI + nWidth * nHeight;
m_fileHeaderBitmap.BfSize = (uint)length;
m_fileHeaderBitmap.BfOffBits = (uint)(m_fileHeaderBitmap.SizeOfBFH + m_infoBitmap.SizeOfBI);
m_infoBitmap.bmiHeader.BiWidth = nWidth;
m_infoBitmap.bmiHeader.BiHeight = nHeight;
m_BmpData = new byte[length];
byte[] TempData = m_fileHeaderBitmap.GetByteData();
Array.Copy(TempData, 0, m_BmpData, 0, TempData.Length);
int offset = TempData.Length;
TempData = m_infoBitmap.bmiHeader.GetByteData();
Array.Copy(TempData, 0, m_BmpData, offset, TempData.Length);
offset += TempData.Length;
TempData = m_infoBitmap.bmiColors.GetGRBTableByteData();
Array.Copy(TempData, 0, m_BmpData, offset, TempData.Length);
offset += TempData.Length;
//rotate image
byte[] pRotateImage = new byte[nWidth * nHeight];
int nImgOffset = 0;
IntPtr pPtr;
for (int iCyc = 0; iCyc < nHeight; iCyc++)
{
pPtr = (IntPtr)(pImage.ToInt32() + (nHeight - iCyc - 1) * nWidth);
Marshal.Copy(pPtr, pRotateImage, nImgOffset, nWidth);
//Array.Copy(pImage, (nHeight - iCyc - 1) * nWidth, pRotateImage, nImgOffset, nWidth);
nImgOffset += nWidth;
}
Array.Copy(pRotateImage, 0, m_BmpData, offset, pRotateImage.Length);
TempData = null;
pRotateImage = null;
}
public MyBitmapFile()
{
m_fileHeaderBitmap = new BITMAPFILEHEADER();
m_infoBitmap = new BITMAPINFO();
}