Merge branch 'master' into docking

# Conflicts:
#	examples/imgui_impl_dx10.cpp
#	examples/imgui_impl_dx10.h
#	examples/imgui_impl_dx11.cpp
#	examples/imgui_impl_dx11.h
#	examples/imgui_impl_dx9.cpp
#	examples/imgui_impl_dx9.h
#	examples/imgui_impl_glfw.cpp
#	examples/imgui_impl_opengl2.cpp
#	examples/imgui_impl_opengl2.h
#	examples/imgui_impl_opengl3.cpp
#	examples/imgui_impl_opengl3.h
#	imgui.cpp

examples/.gitignore

@@ -40,3 +40,7 @@ example_sdl_opengl3/example_sdl_opengl3
 
 ## Dear ImGui Ini files
 imgui.ini
+
+## JetBrains IDEs
+.idea
+cmake-build-*

examples/example_glfw_opengl2/main.cpp

@@ -146,9 +146,9 @@ int main(int, char**)
         glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w);
         glClear(GL_COLOR_BUFFER_BIT);
 
-        // If you are using this code with non-legacy OpenGL header/contexts (which you should not, prefer using imgui_impl_opengl3.cpp!!), 
+        // If you are using this code with non-legacy OpenGL header/contexts (which you should not, prefer using imgui_impl_opengl3.cpp!!),
         // you may need to backup/reset/restore current shader using the commented lines below.
-        //GLint last_program; 
+        //GLint last_program;
         //glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
         //glUseProgram(0);
         ImGui_ImplOpenGL2_RenderDrawData(ImGui::GetDrawData());

examples/example_sdl_directx11/main.cpp

@@ -26,7 +26,7 @@ void CleanupRenderTarget();
 int main(int, char**)
 {
     // Setup SDL
-    // (Some versions of SDL before <2.0.10 appears to have performance/stalling issues on a minority of Windows systems, 
+    // (Some versions of SDL before <2.0.10 appears to have performance/stalling issues on a minority of Windows systems,
     // depending on whether SDL_INIT_GAMECONTROLLER is enabled or disabled.. updating to latest version of SDL is recommended!)
     if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMECONTROLLER) != 0)
     {

examples/example_sdl_opengl2/main.cpp

@@ -17,7 +17,7 @@
 int main(int, char**)
 {
     // Setup SDL
-    // (Some versions of SDL before <2.0.10 appears to have performance/stalling issues on a minority of Windows systems, 
+    // (Some versions of SDL before <2.0.10 appears to have performance/stalling issues on a minority of Windows systems,
     // depending on whether SDL_INIT_GAMECONTROLLER is enabled or disabled.. updating to latest version of SDL is recommended!)
     if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMECONTROLLER) != 0)
     {

examples/example_sdl_opengl3/main.cpp

@@ -27,7 +27,7 @@
 int main(int, char**)
 {
     // Setup SDL
-    // (Some versions of SDL before <2.0.10 appears to have performance/stalling issues on a minority of Windows systems, 
+    // (Some versions of SDL before <2.0.10 appears to have performance/stalling issues on a minority of Windows systems,
     // depending on whether SDL_INIT_GAMECONTROLLER is enabled or disabled.. updating to latest version of SDL is recommended!)
     if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_GAMECONTROLLER) != 0)
     {

examples/imgui_impl_allegro5.cpp

@@ -2,7 +2,7 @@
 // (Info: Allegro 5 is a cross-platform general purpose library for handling windows, inputs, graphics, etc.)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Platform: Clipboard support (from Allegro 5.1.12)
 //  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 // Issues:

examples/imgui_impl_allegro5.h

@@ -2,7 +2,7 @@
 // (Info: Allegro 5 is a cross-platform general purpose library for handling windows, inputs, graphics, etc.)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Platform: Clipboard support (from Allegro 5.1.12)
 //  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 // Issues:

examples/imgui_impl_dx10.cpp

@@ -2,7 +2,7 @@
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'ID3D10ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'ID3D10ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 //  [X] Renderer: Support for large meshes (64k+ vertices) with 16-bits indices.
 

examples/imgui_impl_dx10.h

@@ -2,7 +2,7 @@
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'ID3D10ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'ID3D10ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 //  [X] Renderer: Support for large meshes (64k+ vertices) with 16-bits indices.
 

examples/imgui_impl_dx11.cpp

@@ -2,7 +2,7 @@
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'ID3D11ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'ID3D11ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 //  [X] Renderer: Support for large meshes (64k+ vertices) with 16-bits indices.
 

examples/imgui_impl_dx11.h

@@ -2,7 +2,7 @@
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'ID3D11ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'ID3D11ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 //  [X] Renderer: Support for large meshes (64k+ vertices) with 16-bits indices.
 

examples/imgui_impl_dx12.cpp

@@ -2,7 +2,7 @@
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Support for large meshes (64k+ vertices) with 16-bits indices.
 // Missing features, issues:
 //  [ ] Renderer: Missing multi-viewport support.

examples/imgui_impl_dx12.h

@@ -2,7 +2,7 @@
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Support for large meshes (64k+ vertices) with 16-bits indices.
 // Missing features, issues:
 //  [ ] Renderer: Missing multi-viewport support.

examples/imgui_impl_dx9.cpp

@@ -2,7 +2,7 @@
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'LPDIRECT3DTEXTURE9' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'LPDIRECT3DTEXTURE9' as ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 //  [X] Renderer: Support for large meshes (64k+ vertices) with 16-bits indices.
 

examples/imgui_impl_dx9.h

@@ -2,7 +2,7 @@
 // This needs to be used along with a Platform Binding (e.g. Win32)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'LPDIRECT3DTEXTURE9' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'LPDIRECT3DTEXTURE9' as ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 //  [X] Renderer: Support for large meshes (64k+ vertices) with 16-bits indices.
 

examples/imgui_impl_glfw.cpp

@@ -17,6 +17,7 @@
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
 //  2019-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2019-10-18: Misc: Previously installed user callbacks are now restored on shutdown.
 //  2019-07-21: Inputs: Added mapping for ImGuiKey_KeyPadEnter.
 //  2019-05-11: Inputs: Don't filter value from character callback before calling AddInputCharacter().
 //  2019-03-12: Misc: Preserve DisplayFramebufferScale when main window is minimized.
@@ -66,7 +67,8 @@ static GLFWwindow*          g_Window = NULL;    // Main window
 static GlfwClientApi        g_ClientApi = GlfwClientApi_Unknown;
 static double               g_Time = 0.0;
 static bool                 g_MouseJustPressed[5] = { false, false, false, false, false };
-static GLFWcursor*          g_MouseCursors[ImGuiMouseCursor_COUNT] = { 0 };
+static GLFWcursor*          g_MouseCursors[ImGuiMouseCursor_COUNT] = {};
+static bool                 g_InstalledCallbacks = false;
 static bool                 g_WantUpdateMonitors = true;
 
 // Chain GLFW callbacks for main viewport: our callbacks will call the user's previously installed callbacks, if any.
@@ -195,6 +197,7 @@ static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, Glfw
     g_PrevUserCallbackChar = NULL;
     if (install_callbacks)
     {
+        g_InstalledCallbacks = true;
         g_PrevUserCallbackMousebutton = glfwSetMouseButtonCallback(window, ImGui_ImplGlfw_MouseButtonCallback);
         g_PrevUserCallbackScroll = glfwSetScrollCallback(window, ImGui_ImplGlfw_ScrollCallback);
         g_PrevUserCallbackKey = glfwSetKeyCallback(window, ImGui_ImplGlfw_KeyCallback);
@@ -228,6 +231,15 @@ void ImGui_ImplGlfw_Shutdown()
 {
     ImGui_ImplGlfw_ShutdownPlatformInterface();
 
+    if (g_InstalledCallbacks)
+    {
+        glfwSetMouseButtonCallback(g_Window, g_PrevUserCallbackMousebutton);
+        glfwSetScrollCallback(g_Window, g_PrevUserCallbackScroll);
+        glfwSetKeyCallback(g_Window, g_PrevUserCallbackKey);
+        glfwSetCharCallback(g_Window, g_PrevUserCallbackChar);
+        g_InstalledCallbacks = false;
+    }
+
     for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
     {
         glfwDestroyCursor(g_MouseCursors[cursor_n]);

examples/imgui_impl_marmalade.cpp

@@ -2,7 +2,7 @@
 // Marmalade code: Copyright (C) 2015 by Giovanni Zito (this file is part of Dear ImGui)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'CIwTexture*' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'CIwTexture*' as ImTextureID. Read the FAQ about ImTextureID!
 // Missing features:
 //  [ ] Renderer: Clipping rectangles are not honored.
 

examples/imgui_impl_marmalade.h

@@ -2,7 +2,7 @@
 // Marmalade code: Copyright (C) 2015 by Giovanni Zito (this file is part of Dear ImGui)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'CIwTexture*' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'CIwTexture*' as ImTextureID. Read the FAQ about ImTextureID!
 
 // You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
 // If you are new to dear imgui, read examples/README.txt and read the documentation at the top of imgui.cpp.

examples/imgui_impl_metal.h

@@ -2,7 +2,7 @@
 // This needs to be used along with a Platform Binding (e.g. OSX)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'MTLTexture' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'MTLTexture' as ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Support for large meshes (64k+ vertices) with 16-bits indices.
 // Missing features:
 //  [ ] Renderer: Multi-viewport / platform windows.

examples/imgui_impl_metal.mm

@@ -2,7 +2,7 @@
 // This needs to be used along with a Platform Binding (e.g. OSX)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'MTLTexture' as ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'MTLTexture' as ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Support for large meshes (64k+ vertices) with 16-bits indices.
 // Missing features:
 //  [ ] Renderer: Multi-viewport / platform windows.

examples/imgui_impl_opengl2.cpp

@@ -2,7 +2,7 @@
 // This needs to be used along with a Platform Binding (e.g. GLFW, SDL, Win32, custom..)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
 // You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.

examples/imgui_impl_opengl2.h

@@ -2,7 +2,7 @@
 // This needs to be used along with a Platform Binding (e.g. GLFW, SDL, Win32, custom..)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 
 // You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.

examples/imgui_impl_opengl3.cpp

@@ -4,7 +4,7 @@
 // This needs to be used along with a Platform Binding (e.g. GLFW, SDL, Win32, custom..)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 //  [x] Renderer: Desktop GL only: Support for large meshes (64k+ vertices) with 16-bits indices.
 
@@ -166,9 +166,9 @@ bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
     strcpy(g_GlslVersionString, glsl_version);
     strcat(g_GlslVersionString, "\n");
 
-    // Dummy construct to make it easily visible in the IDE and debugger which GL loader has been selected. 
+    // Dummy construct to make it easily visible in the IDE and debugger which GL loader has been selected.
     // The code actually never uses the 'gl_loader' variable! It is only here so you can read it!
-    // If auto-detection fails or doesn't select the same GL loader file as used by your application, 
+    // If auto-detection fails or doesn't select the same GL loader file as used by your application,
     // you are likely to get a crash below.
     // You can explicitly select a loader by using '#define IMGUI_IMPL_OPENGL_LOADER_XXX' in imconfig.h or compiler command-line.
     const char* gl_loader = "Unknown";

examples/imgui_impl_opengl3.h

@@ -4,7 +4,7 @@
 // This needs to be used along with a Platform Binding (e.g. GLFW, SDL, Win32, custom..)
 
 // Implemented features:
-//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID in imgui.cpp.
+//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
 //  [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
 //  [x] Renderer: Desktop GL only: Support for large meshes (64k+ vertices) with 16-bits indices.
 
@@ -41,8 +41,8 @@ IMGUI_IMPL_API void     ImGui_ImplOpenGL3_DestroyDeviceObjects();
 //#define IMGUI_IMPL_OPENGL_ES3     // Auto-detected on iOS/Android
 
 // Desktop OpenGL: attempt to detect default GL loader based on available header files.
-// If auto-detection fails or doesn't select the same GL loader file as used by your application, 
-// you are likely to get a crash in ImGui_ImplOpenGL3_Init(). 
+// If auto-detection fails or doesn't select the same GL loader file as used by your application,
+// you are likely to get a crash in ImGui_ImplOpenGL3_Init().
 // You can explicitly select a loader by using '#define IMGUI_IMPL_OPENGL_LOADER_XXX' in imconfig.h or compiler command-line.
 #if !defined(IMGUI_IMPL_OPENGL_LOADER_GL3W) \
  && !defined(IMGUI_IMPL_OPENGL_LOADER_GLEW) \

examples/imgui_impl_osx.h

@@ -14,5 +14,5 @@
 
 IMGUI_API bool        ImGui_ImplOSX_Init();
 IMGUI_API void        ImGui_ImplOSX_Shutdown();
-IMGUI_API void        ImGui_ImplOSX_NewFrame(NSView *_Nonnull view);
+IMGUI_API void        ImGui_ImplOSX_NewFrame(NSView *_Nullable view);
 IMGUI_API bool        ImGui_ImplOSX_HandleEvent(NSEvent *_Nonnull event, NSView *_Nullable view);

examples/imgui_impl_osx.mm

@@ -15,7 +15,8 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
-//  2019-07-21: Readded clipboard handlers as they are not enabled by default in core imgui.cpp (reverted 2019-05-18 change).
+//  2019-10-11: Inputs:  Fix using Backspace key.
+//  2019-07-21: Re-added clipboard handlers as they are not enabled by default in core imgui.cpp (reverted 2019-05-18 change).
 //  2019-05-28: Inputs: Added mouse cursor shape and visibility support.
 //  2019-05-18: Misc: Removed clipboard handlers as they are now supported by core imgui.cpp.
 //  2019-05-11: Inputs: Don't filter character values before calling AddInputCharacter() apart from 0xF700..0xFFFF range.
@@ -24,7 +25,7 @@
 
 // Data
 static CFAbsoluteTime g_Time = 0.0;
-static NSCursor*      g_MouseCursors[ImGuiMouseCursor_COUNT] = { 0 };
+static NSCursor*      g_MouseCursors[ImGuiMouseCursor_COUNT] = {};
 static bool           g_MouseCursorHidden = false;
 
 // Undocumented methods for creating cursors.
@@ -41,13 +42,13 @@ bool ImGui_ImplOSX_Init()
     ImGuiIO& io = ImGui::GetIO();
 
     // Setup back-end capabilities flags
-    io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;         // We can honor GetMouseCursor() values (optional)
+    io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;           // We can honor GetMouseCursor() values (optional)
     //io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;          // We can honor io.WantSetMousePos requests (optional, rarely used)
     //io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports;    // We can create multi-viewports on the Platform side (optional)
     //io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport; // We can set io.MouseHoveredViewport correctly (optional, not easy)
     io.BackendPlatformName = "imgui_impl_osx";
 
-    // Keyboard mapping. ImGui will use those indices to peek into the io.KeyDown[] array.
+    // Keyboard mapping. Dear ImGui will use those indices to peek into the io.KeyDown[] array.
     const int offset_for_function_keys = 256 - 0xF700;
     io.KeyMap[ImGuiKey_Tab]             = '\t';
     io.KeyMap[ImGuiKey_LeftArrow]       = NSLeftArrowFunctionKey + offset_for_function_keys;
@@ -151,9 +152,12 @@ void ImGui_ImplOSX_NewFrame(NSView* view)
 {
     // Setup display size
     ImGuiIO& io = ImGui::GetIO();
-    const float dpi = [view.window backingScaleFactor];
-    io.DisplaySize = ImVec2((float)view.bounds.size.width, (float)view.bounds.size.height);
-    io.DisplayFramebufferScale = ImVec2(dpi, dpi);
+    if (view)
+    {
+        const float dpi = [view.window backingScaleFactor];
+        io.DisplaySize = ImVec2((float)view.bounds.size.width, (float)view.bounds.size.height);
+        io.DisplayFramebufferScale = ImVec2(dpi, dpi);
+    }
 
     // Setup time step
     if (g_Time == 0.0)
@@ -230,7 +234,7 @@ bool ImGui_ImplOSX_HandleEvent(NSEvent* event, NSView* view)
             }
         }
         else
-        #endif /*MAC_OS_X_VERSION_MAX_ALLOWED*/
+        #endif // MAC_OS_X_VERSION_MAX_ALLOWED
         {
             wheel_dx = [event deltaX];
             wheel_dy = [event deltaY];
@@ -251,7 +255,7 @@ bool ImGui_ImplOSX_HandleEvent(NSEvent* event, NSView* view)
         for (int i = 0; i < len; i++)
         {
             int c = [str characterAtIndex:i];
-            if (!io.KeyCtrl && !(c >= 0xF700 && c <= 0xFFFF))
+            if (!io.KeyCtrl && !(c >= 0xF700 && c <= 0xFFFF) && c != 127)
                 io.AddInputCharacter((unsigned int)c);
 
             // We must reset in case we're pressing a sequence of special keys while keeping the command pressed

examples/imgui_impl_sdl.cpp

@@ -69,7 +69,7 @@ static const Uint32 SDL_WINDOW_VULKAN = 0x10000000;
 static SDL_Window*  g_Window = NULL;
 static Uint64       g_Time = 0;
 static bool         g_MousePressed[3] = { false, false, false };
-static SDL_Cursor*  g_MouseCursors[ImGuiMouseCursor_COUNT] = { 0 };
+static SDL_Cursor*  g_MouseCursors[ImGuiMouseCursor_COUNT] = {};
 static char*        g_ClipboardTextData = NULL;
 
 // Forward Declarations