Here's the code for doing this for all image types like bmps(we tested for
this), jpegs - it has not been made generic, that should be easy to achieve
that for all images. I will try to get the same for all documents and post
it soon enough.
This has been abstracted into a class - CGdiHelper.. The SaveImage takes the
following parameters -
1) szFileInPath - the file path to the in files like c:\temp\image
2) ulNumImagess - number of images to merge.
3) szFileExtension - the extension to work with. Let's assume bmp, then if
ulNumImages is 2, the filenames should be c:\temp\image0.bmp,
c:\temp\image1.bmp, c:\temp\image2.bmp
The rest parameters for out parameters - ie to get the merged tiff file
Sorry about the formatting
#include "stdafx.h"
#include "Scan2FaxDlg.h"
CGdiHelper::CGdiHelper()
{
// Initialize GDI+.
GdiplusStartup(&m_gdiplusToken, &m_gdiplusStartupInput, NULL);
}
CGdiHelper::~CGdiHelper()
{
GdiplusShutdown(m_gdiplusToken);
}
HRESULT CGdiHelper::SaveImage(WCHAR *szFileInPath, WCHAR *szFileExtension,
ULONG ulNumImages, WCHAR *szFileOutPath, ULONG ulFileOutLen)
{
HRESULT hr = S_OK;
EncoderParameters encoderParameters;
WCHAR szImageFileName[FILE_PATH_LEN + FILE_EXTENSION_LEN + 1];
ULONG parameterValue, i;
Status stat;
ULONG ulNumImagesAllocated;
if (!szFileInPath || !szFileExtension || !ulNumImages || !szFileOutPath)
return E_INVALIDARG;
// An EncoderParameters object has an array of
// EncoderParameter objects. In this case, there is only
// one EncoderParameter object in the array.
encoderParameters.Count = 1;
// Initialize the one EncoderParameter object.
encoderParameters.Parameter[0].Guid = EncoderSaveFlag;
encoderParameters.Parameter[0].Type = EncoderParameterValueTypeLong;
encoderParameters.Parameter[0].NumberOfValues = 1;
encoderParameters.Parameter[0].Value = ¶meterValue;
// Get the CLSID of the TIFF encoder.
CLSID encoderClsid;
GetEncoderClsid(L"image/tiff", &encoderClsid);
//Create the desired number of image objects
Image **ppMultiFrame = new Image*[ulNumImages];
if (NULL == ppMultiFrame)
return E_OUTOFMEMORY;
_snwprintf(szFileOutPath, ulFileOutLen-1,
L"%s.tif", szFileInPath);
for (i = 0; i < ulNumImages; i++)
{
_snwprintf(szImageFileName, ARRAY_SIZE(szImageFileName)-1,
L"%s%d.%s", szFileInPath, i, szFileExtension);
ppMultiFrame
= new Image(szImageFileName);
if (NULL == ppMultiFrame)
{
hr = E_OUTOFMEMORY;
break;
}
//if this is the first page, create the multi paged file
if (i == 0)
{
// Save the first page (frame).
parameterValue = EncoderValueMultiFrame;
stat = ppMultiFrame->Save(szFileOutPath, &encoderClsid,
&encoderParameters);
if(stat != Ok)
{
hr = E_FAIL;
break;
}
}
else
{
// Save the first page (frame).
parameterValue = EncoderValueFrameDimensionPage;
stat = ppMultiFrame[0]->SaveAdd(ppMultiFrame, &encoderParameters);
}
}
ulNumImagesAllocated = i;
// Close the multiframe file if at least the first image is allocated.
if (ulNumImagesAllocated > 0)
{
parameterValue = EncoderValueFlush;
stat = ppMultiFrame[0]->SaveAdd(&encoderParameters);
if(stat != Ok)
hr = E_FAIL;
}
for (i = 0; i < ulNumImagesAllocated; i++)
{
delete ppMultiFrame;
}
delete ppMultiFrame;
return hr;
}
int CGdiHelper::GetEncoderClsid(const WCHAR* format, CLSID* pClsid)
{
UINT num = 0; // number of image encoders
UINT size = 0; // size of the image encoder array in bytes
ImageCodecInfo* pImageCodecInfo = NULL;
GetImageEncodersSize(&num, &size);
if(size == 0)
return -1; // Failure
pImageCodecInfo = (ImageCodecInfo*)(malloc(size));
if(pImageCodecInfo == NULL)
return -1; // Failure
GetImageEncoders(num, size, pImageCodecInfo);
for(UINT j = 0; j < num; ++j)
{
if( wcscmp(pImageCodecInfo[j].MimeType, format) == 0 )
{
*pClsid = pImageCodecInfo[j].Clsid;
free(pImageCodecInfo);
return j; // Success
}
}
free(pImageCodecInfo);
return -1; // Failure
}
--
Thank you, Manoj
Microsoft Printing, Imaging and Fax Team
This posting is provided "AS IS" with no warranties, and confers no
rights.
Please do not send email directly to this alias. This alias is for
newsgroup purposes only.'
Hi,
I will send the code by Monday - sorry about the delay.
--
Thank you, Manoj
Microsoft Printing, Imaging and Fax Team
This posting is provided "AS IS" with no warranties, and confers no
rights.
Please do not send email directly to this alias. This alias is for
newsgroup purposes only.'
Hi,
Does anyone know how to use the "printto" verb with ShellExecute() on
files of type .HTML without the Printer dialog coming up? I've tried
multiple variations on specifying the printer to use in the printo
command, but no luck. I can get this to work with a file of type
.TXT, however, I do see Notepad flash open for a second in the
background. How does the Windows Fax Service accomplish this? It is
able to send any document that supports the "printto" verb to the Fax
printer without anything ever showing up--no Printer dialogs, no
applications flashing open, etc. Does anyone know how to accomplish
this programmatically? I have seen many postings on this problem, but
no answers as to how to work around it.
Additionally, Manoj Jain [MSFT] ([email protected]) said he
had sample code for demonstrating how to programmatically print
multiple documents to a single TIF file. Does anyone have this or
know what he was referring to??
Thanks for any help,
Rob
