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| #include <windows.h>
#include <iostream>
#include <stdlib.h>
#include <string>
#include <vector>
#include <fstream>
LPDEVMODE GetLandscapeDevMode(HANDLE hPrinter, LPTSTR pDevice)
{
LPDEVMODE pDevMode;
DWORD dwNeeded, dwRet;
/*
* Step 1:
* Allocate a buffer of the correct size.
*/
dwNeeded = DocumentProperties(NULL,
hPrinter, /* Handle to our printer. */
pDevice, /* Name of the printer. */
NULL, /* Asking for size, so */
NULL, /* these are not used. */
0); /* Zero returns buffer size. */
pDevMode = (LPDEVMODE)malloc(dwNeeded);
/*
* Step 2:
* Get the default DevMode for the printer and
* modify it for your needs.
*/
dwRet = DocumentProperties(NULL,
hPrinter,
pDevice,
pDevMode, /* The address of the buffer to fill. */
NULL, /* Not using the input buffer. */
DM_OUT_BUFFER); /* Have the output buffer filled. */
if (dwRet != IDOK)
{
/* If failure, cleanup and return failure. */
free(pDevMode);
ClosePrinter(hPrinter);
return NULL;
}
/*
* Make changes to the DevMode which are supported.
*/
if (pDevMode->dmFields & DM_ORIENTATION)
{
/* If the printer supports paper orientation, set it.*/
pDevMode->dmOrientation = DMORIENT_LANDSCAPE;
}
if (pDevMode->dmFields & DM_DUPLEX)
{
/* If it supports duplex printing, use it. */
pDevMode->dmDuplex = DMDUP_HORIZONTAL;
std::wcerr << L"supports duplex printing" << std::endl;
}
/*
* Step 3:
* Merge the new settings with the old.
* This gives the driver an opportunity to update any private
* portions of the DevMode structure.
*/
dwRet = DocumentProperties(NULL,
hPrinter,
pDevice,
pDevMode, /* Reuse our buffer for output. */
pDevMode, /* Pass the driver our changes. */
DM_IN_BUFFER | /* Commands to Merge our changes and */
DM_OUT_BUFFER); /* write the result. */
/* Finished with the printer */
//ClosePrinter(hPrinter);
if (dwRet != IDOK)
{
/* If failure, cleanup and return failure. */
free(pDevMode);
return NULL;
}
/* Return the modified DevMode structure. */
return pDevMode;
}
void PrintPDF(LPTSTR printerName, char* bytes, int numBytes) {
HANDLE hPrinter;
PRINTER_DEFAULTS pd = { NULL, NULL, PRINTER_ACCESS_USE };
if (!OpenPrinter(printerName, &hPrinter, &pd)) {
std::wcerr << L"Failed to open printer: " << printerName << std::endl;
return;
}
LPDEVMODE pDevMode = NULL;
pDevMode = GetLandscapeDevMode(hPrinter, printerName);
if (!pDevMode) {
std::cerr << "Failed to set printer settings." << std::endl;
ClosePrinter(hPrinter);
return;
}
std::wcout << L"SetPrinter ok\n";
// Create a DOC_INFO_1 structure
DOC_INFO_1 docInfo;
docInfo.pDocName = (LPTSTR)L"PDF Document";
docInfo.pOutputFile = NULL;
docInfo.pDatatype = (LPTSTR)L"RAW";
// Start a print job
DWORD dwJob = StartDocPrinter(hPrinter, 1, (LPBYTE)&docInfo);
if (dwJob == 0) {
std::cerr << "Failed to start print job." << std::endl;
ClosePrinter(hPrinter);
return;
}
// Start a page
if (StartPagePrinter(hPrinter) == 0) {
std::cerr << "Failed to start page." << std::endl;
EndDocPrinter(hPrinter);
ClosePrinter(hPrinter);
return;
}
// Write the PDF data to the printer
DWORD bytesWritten;
if (WritePrinter(hPrinter, bytes, numBytes, &bytesWritten) == 0) {
std::cerr << "Failed to write to printer." << std::endl;
EndPagePrinter(hPrinter);
EndDocPrinter(hPrinter);
ClosePrinter(hPrinter);
return;
}
// End the page
if (EndPagePrinter(hPrinter) == 0) {
std::cerr << "Failed to end page." << std::endl;
}
// End the print job
if (EndDocPrinter(hPrinter) == 0) {
std::cerr << "Failed to end print job." << std::endl;
}
std::cerr << "Impression envoyée." << std::endl;
// Close the printer
ClosePrinter(hPrinter);
}
std::vector<char> readPDFToByteArray(const std::string& filePath) {
// Open the file in binary mode
std::ifstream file(filePath, std::ios::binary | std::ios::ate);
if (!file.is_open()) {
throw std::runtime_error("Could not open file");
}
// Get the size of the file
std::streamsize fileSize = file.tellg();
file.seekg(0, std::ios::beg);
// Read the file contents into a byte array
std::vector<char> buffer(fileSize);
if (!file.read(buffer.data(), fileSize)) {
throw std::runtime_error("Error reading file");
}
return buffer;
}
int main()
{
const wchar_t* printerName = L"my printer name";
std::vector<char> pdfBytes;
try {
std::string filePath = "C:\\path\\doc.pdf";
pdfBytes = readPDFToByteArray(filePath);
std::cout << "PDF file read successfully. Size: " << pdfBytes.size() << " bytes" << std::endl;
} catch (const std::exception& e) {
std::cerr << "Error: " << e.what() << std::endl;
}
PrintPDF((LPTSTR)printerName, pdfBytes.data(), (int)pdfBytes.size());
return 0;
} |
