1 files changed, 73 insertions, 0 deletions
diff --git a/platform/windows/gsprint/gsprint.cpp b/platform/windows/gsprint/gsprint.cpp
new file mode 100644
index 00000000..4f4a3924
--- /dev/null
+++ b/platform/windows/gsprint/gsprint.cpp
@@ -0,0 +1,73 @@
+// gsprint.cpp : Defines the exported functions for the DLL application.
+//
+#include "gsprint.h"
+#include "stdlib.h"
+
+#define FAIL -1
+
+/* Code to handle the special device properties window as well as make sure
+ * that the values are maintained when we leave */
+SYMBOL_DECLSPEC int __stdcall ShowPropertiesDialog(void *hptr, void *printername, bool show_win)
+{
+	HWND hWnd = (HWND)hptr;
+	HANDLE hPrinter = NULL;
+	LPDEVMODE pDevMode;
+	DWORD dwNeeded, dwRet;
+	wchar_t *output = NULL;
+
+	int lenA = lstrlenA((char*)printername);
+	int lenW = ::MultiByteToWideChar(CP_ACP, 0, (char*)printername, lenA, NULL, 0);
+	if (lenW > 0)
+	{
+		output = new wchar_t[lenW + 1];
+		if (output == NULL)
+			return -1;
+		::MultiByteToWideChar(CP_ACP, 0, (char*)printername, lenA, output, lenW);
+		output[lenW] = 0;
+	}
+	else
+		return FAIL;
+
+	if (!OpenPrinter(output, &hPrinter, NULL))
+	{
+		delete[] output;
+		return FAIL;
+	}
+
+	/* First get the size needed */
+	dwNeeded = DocumentProperties(hWnd, hPrinter, output, NULL, NULL, 0);
+	pDevMode = (LPDEVMODE)malloc(dwNeeded);
+	if (pDevMode == NULL)
+	{
+		delete[] output;
+		ClosePrinter(hPrinter);
+		return FAIL;
+	}
+
+	/* Now actually get the DEVMODE data. DM_IN_PROMPT brings up the window.
+	 * DM_OUT_BUFFER ensures that we get the values that have been set */
+	DWORD fMode = DM_OUT_BUFFER;
+	if (show_win)
+		fMode = fMode | DM_IN_PROMPT;
+	
+	dwRet = DocumentProperties(hWnd, hPrinter, output, pDevMode, NULL, fMode);
+	if (dwRet != IDOK)
+	{
+		delete[] output;
+		ClosePrinter(hPrinter);
+		free(pDevMode);
+		return FAIL;
+	}
+
+	/* This is the secret to ensure that the DEVMODE settings are saved.  Fun
+	 * finding this bit of information in the MS literature */
+	PRINTER_INFO_9 new_info;
+	new_info.pDevMode = pDevMode;
+	SetPrinter(hPrinter, 9, (LPBYTE)&new_info, 0);
+
+	/* Clean up */
+	free(pDevMode);
+	delete[] output;
+	ClosePrinter(hPrinter);
+	return 0;
+}