From f27dfb68096caf82840993fef0f23a76fd0ac084 Mon Sep 17 00:00:00 2001
From: jp9000 <obs.jim@gmail.com>
Date: Mon, 16 Dec 2013 00:06:13 -0700
Subject: [PATCH] add platform functions for querying monitor information

---
 obs/platform-nix.cpp     |  6 ++++++
 obs/platform-osx.cpp     |  6 ++++++
 obs/platform-windows.cpp | 20 ++++++++++++++++++++
 obs/platform.hpp         |  9 +++++++++
 4 files changed, 41 insertions(+)

diff --git a/obs/platform-nix.cpp b/obs/platform-nix.cpp
index 88dd77cbd..20bbc94e4 100644
--- a/obs/platform-nix.cpp
+++ b/obs/platform-nix.cpp
@@ -23,3 +23,9 @@ bool GetDataFilePath(const char *data, string &output)
 	// TODO
 	return false;
 }
+
+void GetMonitors(vector<MonitorInfo> &monitors)
+{
+	monitors.clear();
+	// TODO
+}
diff --git a/obs/platform-osx.cpp b/obs/platform-osx.cpp
index ef425f90d..9153b45d7 100644
--- a/obs/platform-osx.cpp
+++ b/obs/platform-osx.cpp
@@ -27,3 +27,9 @@ bool GetDataFilePath(const char *data, string &output)
 	output = str.str();
 	return !access(output.c_str(), R_OK);
 }
+
+void GetMonitors(vector<MonitorInfo> &monitors)
+{
+	monitors.clear();
+	// TODO
+}
diff --git a/obs/platform-windows.cpp b/obs/platform-windows.cpp
index 85f2a3854..e5af5ae42 100644
--- a/obs/platform-windows.cpp
+++ b/obs/platform-windows.cpp
@@ -30,3 +30,23 @@ bool GetDataFilePath(const char *data, string &output)
 	output = str.str();
 	return os_file_exists(output.c_str());
 }
+
+static BOOL CALLBACK OBSMonitorEnumProc(HMONITOR hMonitor, HDC hdcMonitor,
+		LPRECT rect, LPARAM param)
+{
+	vector<MonitorInfo> &monitors = *(vector<MonitorInfo> *)param;
+
+	MonitorInfo monitor;
+	monitor.x  = rect->left;
+	monitor.y  = rect->top;
+	monitor.cx = rect->right - rect->left;
+	monitor.cy = rect->bottom - rect->top;
+	monitors.push_back(monitor);
+	return true;
+}
+
+void GetMonitors(vector<MonitorInfo> &monitors)
+{
+	monitors.clear();
+	EnumDisplayMonitors(NULL, NULL, OBSMonitorEnumProc, (LPARAM)&monitors);
+}
diff --git a/obs/platform.hpp b/obs/platform.hpp
index 478ca9dc7..050c3aeb9 100644
--- a/obs/platform.hpp
+++ b/obs/platform.hpp
@@ -17,8 +17,17 @@
 
 #pragma once
 
+#include <util/c99defs.h>
+
 #include <string>
+#include <vector>
 using namespace std;
 
+struct MonitorInfo {
+	int32_t  x, y;
+	uint32_t cx, cy;
+};
+
 /* Gets the path of obs-studio specific data files (such as locale) */
 bool GetDataFilePath(const char *data, string &path);
+void GetMonitors(vector<MonitorInfo> &monitors);