Update to imgui 1.64.

imgui/imgui.h

@@ -1,4 +1,4 @@
-// dear imgui, v1.63
+// dear imgui, v1.64
 // (headers)
 
 // See imgui.cpp file for documentation.
@@ -23,8 +23,8 @@
 
 // Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY00 then bounced up to XYY01 when release tagging happens)
-#define IMGUI_VERSION               "1.63"
-#define IMGUI_VERSION_NUM           16301
+#define IMGUI_VERSION               "1.64"
+#define IMGUI_VERSION_NUM           16401
 #define IMGUI_CHECKVERSION()        ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert))
 
 // Define attributes of all API symbols declarations (e.g. for DLL under Windows)

imgui/imgui_demo.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.63
+// dear imgui, v1.64
 // (demo code)
 
 // Message to the person tempted to delete this file when integrating ImGui into their code base:

imgui/imgui_draw.cpp

@@ -1,14 +1,21 @@
-// dear imgui, v1.63
+// dear imgui, v1.64
 // (drawing and font code)
 
-// Contains implementation for
-// - Default styles
-// - ImDrawList
-// - ImDrawData
-// - ImFontAtlas
-// - Internal Render Helpers
-// - ImFont
-// - Default font data
+/*
+
+Index of this file:
+- Cruft for stb_truetype/stb_rectpack implementation
+- Style functions (default style)
+- ImDrawList
+- ImDrawData
+- ShadeVertsXXX helpers functions
+- ImFontConfig
+- ImFontAtlas
+- ImFont
+- Internal Render Helpers
+- Default font data
+
+*/
 
 #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
 #define _CRT_SECURE_NO_WARNINGS

imgui/imgui_internal.h

@@ -1,4 +1,4 @@
-// dear imgui, v1.63
+// dear imgui, v1.64
 // (internal structures/api)
 
 // You may use this file to debug, understand or extend ImGui features but we don't provide any guarantee of forward compatibility!
@@ -1137,8 +1137,9 @@ namespace ImGui
     // Settings
     IMGUI_API void                  MarkIniSettingsDirty();
     IMGUI_API void                  MarkIniSettingsDirty(ImGuiWindow* window);
-    IMGUI_API ImGuiSettingsHandler* FindSettingsHandler(const char* type_name);
+    IMGUI_API ImGuiWindowSettings*  CreateNewWindowSettings(const char* name);
     IMGUI_API ImGuiWindowSettings*  FindWindowSettings(ImGuiID id);
+    IMGUI_API ImGuiSettingsHandler* FindSettingsHandler(const char* type_name);
 
     // Basic Accessors
     inline ImGuiID          GetItemID()     { ImGuiContext& g = *GImGui; return g.CurrentWindow->DC.LastItemId; }