From 8b9e21e38fac2b70b92aa9e698ce9de7a62e6f93 Mon Sep 17 00:00:00 2001
From: spx <spx268@gmail.com>
Date: Tue, 23 Mar 2010 16:15:07 +0000
Subject: [PATCH] Fixed the crash problem when multiple Rainmeter instances are
 running and "show desktop" occured.

---
 Library/Rainmeter.cpp | 16 ++++++++++++++++
 Library/Rainmeter.h   |  1 +
 Library/System.cpp    |  3 ++-
 3 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/Library/Rainmeter.cpp b/Library/Rainmeter.cpp
index 8a85feae..8ddcf2bb 100644
--- a/Library/Rainmeter.cpp
+++ b/Library/Rainmeter.cpp
@@ -1472,6 +1472,22 @@ CMeterWindow* CRainmeter::GetMeterWindow(const std::wstring& config)
 
 	return NULL;
 }
+
+CMeterWindow* CRainmeter::GetMeterWindow(HWND hwnd)
+{
+	std::map<std::wstring, CMeterWindow*>::iterator iter = m_Meters.begin();
+
+	for (; iter != m_Meters.end(); iter++)
+	{
+		if ((*iter).second->GetWindow() == hwnd)
+		{
+			return (*iter).second;
+		}
+	}
+
+	return NULL;
+}
+
 /* 
 ** Quit
 **
diff --git a/Library/Rainmeter.h b/Library/Rainmeter.h
index c1ec1129..6ed849b8 100644
--- a/Library/Rainmeter.h
+++ b/Library/Rainmeter.h
@@ -112,6 +112,7 @@ public:
 	CTrayWindow* GetTrayWindow() { return m_TrayWindow; };
 
 	CMeterWindow* GetMeterWindow(const std::wstring& config);
+	CMeterWindow* GetMeterWindow(HWND hwnd);
 	std::map<std::wstring, CMeterWindow*>& GetAllMeterWindows() { return m_Meters; };
 	const std::vector<CONFIG>& GetAllConfigs() { return m_ConfigStrings; };
 	const std::vector<std::wstring>& GetAllThemes() { return m_Themes; };
diff --git a/Library/System.cpp b/Library/System.cpp
index 9bfe5377..2f0aeb8f 100644
--- a/Library/System.cpp
+++ b/Library/System.cpp
@@ -581,7 +581,8 @@ BOOL CALLBACK MyEnumWindowsProc(HWND hwnd, LPARAM lParam)
 
 	if (GetClassName(hwnd, className, 128) > 0 &&
 		wcscmp(className, L"RainmeterMeterWindow") == 0 &&
-		(Window = (CMeterWindow*)GetProp(hwnd, L"RAINMETER")))
+		Rainmeter &&
+		(Window = Rainmeter->GetMeterWindow(hwnd)))
 	{
 		if (Window->GetWindowZPosition() == ZPOSITION_ONDESKTOP)
 		{