I have trouble displaying the bitmap. I have 1bpp information. I also
have a command telling me what color i need to set the bytes to when the
colour is switched on. The trouble is i do all this but it will not
display properly. I convert this to 8bpp information. I set the relevant
pixel to for example "255,0,0" for Red.....is this right?....i set the
Red byte to 255 and the other two values set to 0. I think the Bitmap
data class i am using is not working properly. Have a look at the data
below.
bitmap = new
Bitmap(PageSize InPixels.Width, PageSizeInPixel s.Height,System .Drawing.Ima
ging.PixelForma t.Format8bppInd exed);
public struct PixelData
{
public byte RedValue;
public byte GreenValue;
public byte BlueValue;
};
public void LockBitmap()
{
GraphicsUnit unit = GraphicsUnit.Pi xel;
RectangleF boundsF = bitmap[bitmap_Count - 1].GetBounds(ref unit);
Rectangle bounds = new Rectangle((int) boundsF.X,
(int) boundsF.Y,
(int) boundsF.Width,
(int) boundsF.Height) ;
// Figure out the number of bytes in a row
// This is rounded up to be a multiple of 4
// bytes, since a scan line in an image must always be a multiple of 4
bytes
// in length.
width = (int) boundsF.Width * sizeof(PixelsDa ta);
if (width % 4 != 0)
{
width = 4 * (width / 4 + 1);
}
bitmapData =
bitmap[bitmap_Count - 1].LockBits(bound s, ImageLockMode.R eadWrite,
PixelFormat.For mat8bppIndexed) ;
pBase = (Byte*) bitmapData.Scan 0.ToPointer();
}
public void Make24BppBitmap ()
{
//LineDataStore stores the 1bpp information
fixed(byte* ThisData = LineDataStore)
{
byte* CurrLine = ThisData + (y * ByteWidth);
PixelData* pPixel = PixelAt(0, y);
for (int x = 0; x < size.X; x++)
{
//check to see if bit is set by using masking
if it is set
then
{
pPixel->RedValue = GetBitmapColorV alue[0];
pPixel->GreenValue = GetBitmapColorV alue[1];
pPixel->BlueValue = GetBitmapColorV alue[2];
}
pPixel++;
}
}
}
For the above i only get a black bitmap......wha ts the problem.......
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