I tested my code on a 16x16 BMP image and the output is weird indeed. I mem filled the data with RGB(0,0,255)(Blue) and then wrote it to file.

Except, the output was a mini bar graph, that had all 3 of the colors in it. I dunno why. What is wrong with my above code(Except that I now aligned the headers.

Toolmaker


-Earth is 98% full. Please delete anybody you can.

Here is the part of my DIB bitmap class that actually saves the DIB to a file. There are probably cleaner more flexible ways to do this but I know it saves a 24 bit bitmap that I can view in ms paint, the picture and fax viewer, paint shop pro and photoshop. I know it uses fopen/fwrite instead of streams but the concept is the same (I think).

// m_bmfh - bmp file header// m_bmih - bmp info header// m_width - bmp width in pixels// m_height - bmp height in pixelsvoid CDIBBMP::SaveToFile( char *strFile ){	FILE *fp = NULL;	int y, pad_bytes;	BYTE pad[4] = {0,0,0,0};	if ( (fp = fopen( strFile, "wb" )) == NULL )	{		// error msg		return;	}	if ( (pad_bytes = sizeof(BYTE)*m_width*3 % 4) )		pad_bytes = 4 - pad_bytes;	m_bmfh.bfSize		= sizeof( m_bmfh ) + sizeof( m_bmih ) + 							(sizeof(BYTE)*m_width*m_height*3) + (pad_bytes*m_height);	m_bmfh.bfOffBits	= sizeof( m_bmfh ) + sizeof( m_bmih );	m_bmfh.bfType		= ''MB'';	m_bmfh.bfReserved1	= 0;	m_bmfh.bfReserved2	= 0;	fwrite( &m_bmfh, sizeof(m_bmfh), 1, fp );	fwrite( &m_bmih, sizeof(m_bmih), 1, fp );	// bitmaps are saved upside down for some reason so we flip it	// and save one row at a time	for ( y = m_height -1; y >=0; y-- )	{		fwrite( &m_pbits[y*m_width*3], sizeof(BYTE)*3, m_width, fp );		fwrite( pad, sizeof(BYTE), pad_bytes, fp );	}	fclose(fp);}

I hope that makes sense. If not, just ask and I think I can explain better.


Evillive2
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