From abeba64d77336b3fbf9aafe9ecc66b779c1e5d02 Mon Sep 17 00:00:00 2001
From: Sean Hall <r.sean.hall@gmail.com>
Date: Mon, 6 Jul 2020 16:22:38 +1000
Subject: Add ability for ThemeCreateParentWindow to center on the monitor.

---
 src/dutil/inc/dpiutil.h | 15 +++++++++++++++
 src/dutil/inc/thmutil.h |  7 +++++++
 2 files changed, 22 insertions(+)

(limited to 'src/dutil/inc')

diff --git a/src/dutil/inc/dpiutil.h b/src/dutil/inc/dpiutil.h
index c6f73b02..8c61ab19 100644
--- a/src/dutil/inc/dpiutil.h
+++ b/src/dutil/inc/dpiutil.h
@@ -14,6 +14,12 @@ extern "C" {
 #define USER_DEFAULT_SCREEN_DPI 96
 #endif
 
+typedef struct _DPIU_MONITOR_CONTEXT
+{
+    UINT nDpi;
+    MONITORINFOEXW mi;
+} DPIU_MONITOR_CONTEXT;
+
 typedef struct _DPIU_WINDOW_CONTEXT
 {
     UINT nDpi;
@@ -32,6 +38,15 @@ typedef UINT (APIENTRY *PFN_GETDPIFORWINDOW)(
 void DAPI DpiuInitialize();
 void DAPI DpiuUninitialize();
 
+/********************************************************************
+ DpiuGetMonitorContextFromPoint - get the DPI context of the monitor from the given point.
+
+*******************************************************************/
+HRESULT DAPI DpiuGetMonitorContextFromPoint(
+    __in const POINT* pt,
+    __out DPIU_MONITOR_CONTEXT** ppMonitorContext
+    );
+
 /********************************************************************
  DpiuGetWindowContext - get the DPI context of the given window.
 
diff --git a/src/dutil/inc/thmutil.h b/src/dutil/inc/thmutil.h
index c75f9587..1ba5db35 100644
--- a/src/dutil/inc/thmutil.h
+++ b/src/dutil/inc/thmutil.h
@@ -81,6 +81,12 @@ typedef enum THEME_SHOW_PAGE_REASON
     THEME_SHOW_PAGE_REASON_REFRESH,
 } THEME_SHOW_PAGE_REASON;
 
+typedef enum THEME_WINDOW_INITIAL_POSITION
+{
+    THEME_WINDOW_INITIAL_POSITION_DEFAULT,
+    THEME_WINDOW_INITIAL_POSITION_CENTER_MONITOR_FROM_COORDINATES,
+} THEME_WINDOW_INITIAL_POSITION;
+
 
 struct THEME_COLUMN
 {
@@ -394,6 +400,7 @@ HRESULT DAPI ThemeCreateParentWindow(
     __in_opt HWND hwndParent,
     __in_opt HINSTANCE hInstance,
     __in_opt LPVOID lpParam,
+    __in THEME_WINDOW_INITIAL_POSITION initialPosition,
     __out_opt HWND* phWnd
     );
 
-- 
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