Derek,
Following is a function sent by Thadd�e Bechtold at Symbol.
But I am not sure if it helps your issue.
////////////////////////////////////////////////////////////////////////////
/
//
// Function: WriteOutBitmap()
//
// Description: This function writes out the bitmap into a BMP format
//
// Parameters: Pointer to the output file, pointer to the Palm OS
bitmap
//
// Returns: 0 if successful
//
////////////////////////////////////////////////////////////////////////////
/
void WriteOutBitmap( CStdioFile& theLocalFile, WORD* theBitmapPtr )
{
BYTE theTempByte=0;
WORD* theData = theBitmapPtr;
WORD* theScanLine;
LONG theWidth, theHeight, theRowBytes;
LONG theBMPRowBytes;
BITMAPFILEHEADER theBitmapHeader; // 14 bytes
BITMAPINFOHEADER theBitmapInfo; // 40 bytes
RGBQUAD theBitmapColors[2]; // 8
bytes
int i, j;
// First, grab the important information from the pointer to the
Palm OS
// bitmap.
theWidth = SyncHHToHostWord( *(theData++) );
theHeight = SyncHHToHostWord( *(theData++) );
theRowBytes = SyncHHToHostWord( *(theData++) );
// Advance past the rest of the Palm OS bitmap header information so
that
// our pointer is sitting at the actual bitmap data.
theData+=5;
// Each scan line must end on a four-byte boundary, so calculate
// our BMP row bytes.
theBMPRowBytes = ((theRowBytes + 3)/4) * 4;
// First, fill in the file information structure
// Since we are writing a version 3 BMP file, the file size is the
size of the file header
// plus the size of the bitmap header plus the size of the color
palette plus the size of
// the bitmap data
theBitmapHeader.bfType = 0x4D42; // is always "BM";
theBitmapHeader.bfSize = sizeof( BITMAPFILEHEADER ) +
sizeof( BITMAPINFOHEADER ) + sizeof( theBitmapColors ) + (theHeight *
theBMPRowBytes);
theBitmapHeader.bfReserved1 = 0;
theBitmapHeader.bfReserved2 = 0;
theBitmapHeader.bfOffBits = sizeof( BITMAPFILEHEADER ) +
sizeof( BITMAPINFOHEADER ) + sizeof( theBitmapColors );
// Write out the header information to the file
theLocalFile.Write( &theBitmapHeader, sizeof(BITMAPFILEHEADER) );
// Next fill in the bitmap information structure
theBitmapInfo.biSize = sizeof( BITMAPINFOHEADER
);
theBitmapInfo.biWidth = theWidth;
theBitmapInfo.biHeight = theHeight;
theBitmapInfo.biPlanes = 1;
theBitmapInfo.biBitCount = 1;
theBitmapInfo.biCompression = BI_RGB;
theBitmapInfo.biSizeImage = theHeight *
theBMPRowBytes;
theBitmapInfo.biXPelsPerMeter = 0x0B13; // Default value
theBitmapInfo.biYPelsPerMeter = 0x0B13; // Default value
theBitmapInfo.biClrUsed = 2;
theBitmapInfo.biClrImportant = 2;
// Write out the bitmap information to the file
theLocalFile.Write( &theBitmapInfo, sizeof(BITMAPINFOHEADER) );
theBitmapColors[0].rgbBlue = 255;
theBitmapColors[0].rgbRed = 255;
theBitmapColors[0].rgbGreen = 255;
theBitmapColors[1].rgbBlue = 0;
theBitmapColors[1].rgbRed = 0;
theBitmapColors[1].rgbGreen = 0;
// Write out the header information to the file
theLocalFile.Write( &theBitmapColors, sizeof(theBitmapColors) );
// Write out each scan line from the bottom up, adding
// padding if necessary.
theTempByte = 0;
for (i=(theHeight-1); i>=0; i--)
{
// Grab a pointer to the scan line
theScanLine = theData + (i*(theRowBytes/2));
theLocalFile.Write( theScanLine, theRowBytes );
// Finally, add padding if necessary so that the
// bitmap is word aligned
if (theRowBytes != theBMPRowBytes)
{
for (j=theRowBytes; j<theBMPRowBytes; j++)
theLocalFile.Write( &theTempByte, 1 );
}
}
}
////////////////////////////////////////////////////////////////
-----Original Message-----
From: Derek Mc Connon [mailto:[EMAIL PROTECTED]]
Sent: Friday, November 09, 2001 6:34 AM
To: Palm Developer Forum
Subject: Saving Bitmap
I have been able to get a bitmap drawn onto the sceen but i want to send
this as a bitmap to my pc.
I have a pointer to bitmap and it is getting my signature ok because when i
call the function:
WinDrawBitmap (bmpP,10,10)
it prints my image to screen. But i am having problems trying to save this
as a format/file i can send to my pc.
I checked the Beamer example but this beams the image to another device
using predefined system functions which i can't use. Is there a predefined
system function for saving instead of beaming out there?
Any help would be greatly apreciated
Thanks
Derek
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