Fix Windows initial page format

 # Changelog
 
+## 5.6.4
+
+- Fix Windows initial page format
+
 ## 5.6.3
 
 - Fix Windows string encoding

@@ -6,7 +6,7 @@ description: >
 homepage: https://github.com/DavBfr/dart_pdf/tree/master/printing
 repository: https://github.com/DavBfr/dart_pdf
 issue_tracker: https://github.com/DavBfr/dart_pdf/issues
-version: 5.6.3
+version: 5.6.4
 
 environment:
   sdk: ">=2.12.0 <3.0.0"

@@ -73,15 +73,29 @@ std::wstring fromUtf8(std::string str) {
 PrintJob::PrintJob(Printing* printing, int index)
     : printing{printing}, index{index} {}
 
-bool PrintJob::printPdf(std::string name, std::string printer) {
+bool PrintJob::printPdf(std::string name,
+                        std::string printer,
+                        double width,
+                        double height) {
   documentName = name;
 
+  auto dm = static_cast<DEVMODE*>(GlobalAlloc(0, sizeof(DEVMODE)));
+  ZeroMemory(dm, sizeof(DEVMODE));
+  dm->dmSize = sizeof(DEVMODE);
+  dm->dmFields = DM_ORIENTATION | DM_PAPERSIZE | DM_PAPERLENGTH | DM_PAPERWIDTH;
+  dm->dmPaperSize = 0;
+  if (width > height) {
+    dm->dmOrientation = DMORIENT_LANDSCAPE;
+    dm->dmPaperWidth = static_cast<short>(round(height * 254 / 72));
+    dm->dmPaperLength = static_cast<short>(round(width * 254 / 72));
+  } else {
+    dm->dmOrientation = DMORIENT_PORTRAIT;
+    dm->dmPaperWidth = static_cast<short>(round(width * 254 / 72));
+    dm->dmPaperLength = static_cast<short>(round(height * 254 / 72));
+  }
+
   if (printer.empty()) {
     PRINTDLG pd;
-    DEVMODE* dm = static_cast<DEVMODE*>(GlobalAlloc(0, sizeof(DEVMODE)));
-    ZeroMemory(dm, sizeof(DEVMODE));
-    dm->dmFields = DM_ORIENTATION;
-    dm->dmOrientation = 2;
 
     // Initialize PRINTDLG
     ZeroMemory(&pd, sizeof(pd));
@@ -115,11 +129,11 @@ bool PrintJob::printPdf(std::string name, std::string printer) {
     hDevNames = pd.hDevNames;
 
   } else {
-    hDC = CreateDC(TEXT("WINSPOOL"), fromUtf8(printer).c_str(), NULL, NULL);
+    hDC = CreateDC(TEXT("WINSPOOL"), fromUtf8(printer).c_str(), NULL, dm);
     if (!hDC) {
       return false;
     }
-    hDevMode = nullptr;
+    hDevMode = dm;
     hDevNames = nullptr;
   }
 

@@ -71,7 +71,10 @@ class PrintJob {
 
   std::vector<Printer> listPrinters();
 
-  bool printPdf(std::string name, std::string printer);
+  bool printPdf(std::string name,
+                std::string printer,
+                double width,
+                double height);
 
   void writeJob(std::vector<uint8_t> data);
 

@@ -74,10 +74,14 @@ class PrintingPlugin : public flutter::Plugin {
       auto printer = vPrinter != arguments->end()
                          ? std::get<std::string>(vPrinter->second)
                          : std::string{};
+      auto width = std::get<double>(
+          arguments->find(flutter::EncodableValue("width"))->second);
+      auto height = std::get<double>(
+          arguments->find(flutter::EncodableValue("height"))->second);
       auto vJob = arguments->find(flutter::EncodableValue("job"));
       auto jobNum = vJob != arguments->end() ? std::get<int>(vJob->second) : -1;
       auto job = new PrintJob{&printing, jobNum};
-      auto res = job->printPdf(name, printer);
+      auto res = job->printPdf(name, printer, width, height);
       if (!res) {
         delete job;
       }