From 829166255b535e38e0594e0cf9e10cfb2a9ad420 Mon Sep 17 00:00:00 2001
From: Perry Werneck <perry.werneck@gmail.com>
Date: Wed, 18 Dec 2019 14:00:44 -0300
Subject: [PATCH] Adding convenienct method for open windows registry.

---
 src/include/v3270.h             |  8 ++++++++
 src/include/v3270/settings.h    |  2 +-
 src/terminal/windows/registry.c | 33 +++++++++++++++++++++++++++++++++
 3 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/src/include/v3270.h b/src/include/v3270.h
index 1e3897e..e77dd3d 100644
--- a/src/include/v3270.h
+++ b/src/include/v3270.h
@@ -31,6 +31,10 @@
 
  #define V3270_H_INCLUDED 1
 
+ #ifdef _WIN32
+	#include <windows.h>
+ #endif // _WIN32
+
  #include <glib.h>
  #include <gtk/gtk.h>
  #include <lib3270.h>
@@ -306,6 +310,10 @@
  // Convenience
  LIB3270_EXPORT void			  gtk_entry_set_printf(GtkEntry *entry, const gchar *fmt, ...) G_GNUC_PRINTF(2,3);
 
+#ifdef _WIN32
+ LIB3270_EXPORT gboolean		  v3270_win32_create_regkey(GtkWidget *widget, REGSAM samDesired, PHKEY phkResult);
+#endif // _WIN32
+
  G_END_DECLS
 
 #endif // V3270_H_INCLUDED
diff --git a/src/include/v3270/settings.h b/src/include/v3270/settings.h
index ab2bbd5..6824143 100644
--- a/src/include/v3270/settings.h
+++ b/src/include/v3270/settings.h
@@ -50,8 +50,8 @@
 #ifdef _WIN32
 
  LIB3270_EXPORT gboolean v3270_load_registry(GtkWidget *widget, HKEY hKey, const gchar *group_name);
-
  LIB3270_EXPORT void v3270_to_registry(GtkWidget *widget, HKEY hKey, const gchar *group_name);
+ LIB3270_EXPORT LSTATUS v3270_win32_create_regkey(LPCSTR lpSubKey, REGSAM samDesired, PHKEY phkResult);
 
 #endif // _WIN32
 
diff --git a/src/terminal/windows/registry.c b/src/terminal/windows/registry.c
index 74bf81f..9ded5bb 100644
--- a/src/terminal/windows/registry.c
+++ b/src/terminal/windows/registry.c
@@ -37,6 +37,8 @@
  #include <lib3270/log.h>
  #include <lib3270/trace.h>
 
+ static const HKEY predefined[] = { HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE };
+
 /*--[ Implement ]------------------------------------------------------------------------------------*/
 
  static void save_by_pspec(GtkWidget *widget, GParamSpec *pspec, HKEY hKey)
@@ -269,3 +271,34 @@
 
 	return TRUE;
  }
+
+ gboolean v3270_win32_open_regkey(GtkWidget *widget, HKEY *hKey, REGSAM samDesired) {
+
+	const gchar * session_name = GTK_V3270(widget)->session.name;
+
+	if(!session_name)
+		session_name = g_get_application_name();
+
+	size_t				  ix;
+	g_autofree gchar	* path = g_strjoin("\\software\\",session_name,NULL);
+
+	// Remove delimiters
+	static const gchar	  delim[] = { ':', '.', '?' };
+	for(ix = 0; ix < G_N_ELEMENTS(delim); ix++) {
+
+		gchar * p = strchr(path,delim[ix]);
+		if(p)
+			*p = 0;
+	}
+
+	for(ix=0;ix < G_N_ELEMENTS(predefined);ix++) {
+
+		if(RegOpenKeyEx(predefined[ix],path,0,samDesired,hKey) == ERROR_SUCCESS)
+			return TRUE;
+
+	}
+
+	return FALSE;
+
+ }
+
--
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