v1.20

Mostly fixes.

• Fixed InputInt() InputFloat() label not declaring their width, breaking usage of SameLine().
• Fixed hovering of combo boxes that extend beyond the parent window limits.
• Fixed text input of Unicode character in the 128-255 range.
• Fixed clipboard pasting into an InputText box not filtering the characters according to contents semantic.
• Dragging outside area of a widget while it is active doesn't trigger hover on other widgets.
• Activating widget bring parent window to front if not already.
• Checkbox and Radio buttons activate on click-release to be consistent with other widgets and most UI.
• InputText() nows consume input characters immediately so they cannot be reused if ImGui::Update is called again with a call to ImGui::Render(). (fixes #105)
• Examples: Console: added support for History callbacks + some cleanup.
• Various small optimisations.
• Cleanup and other fixes.

v1.19

• Tightening default style a little.
• Added ImGuiStyleVar_WindowRounding enum for PushStyleVar() API.
• Added SliderInt2(), SliderInt3(), SliderInt4() for consistency.
• Widgets more consistently handle empty labels (starting with ## mark) for their size calculation.
• Fixed crashing with zero sized frame-buffer.
• Fixed ImGui::Combo() not registering its size properly when clipped out of screen.
• Renamed second parameter to Begin() to 'bool* p_opened' to be a little more self-explanatory. Added more comments on the use of Begin().
• Logging: Added LogText() to pass text straight to the log output (tty/clipboard/file) without rendering it.
• Logging: Added LogFinish() to stop logging at an arbitrary point.
• Logging: Log depth padding relative to start depth.
• Logging: Tree nodes and headers looking better when logged to text.
• Logging: Log outputs \r\n under Windows to play it nicely with \n unaware tools such as Notepad.
• Style editor: added a button to output colors to clipboard/tty.
• OpenGL3 example: fix growing of VBO.
• Cleanup and other minor fixes.

v1.18

• Added ImGuiWindowFlags_NoScrollWithMouse, disable mouse wheel scrolling on a window.
• Added ImGuiWindowFlags_NoSavedSettings, disable loading/saving window state to .ini file.
• Added SetNextWindowPos(), SetNextWindowSize(), SetNextWindowCollapsed() API along with SetWindowPos(), SetWindowSize(), SetWindowCollapsed(). All functions include an optional second parameter to easily set current value vs session default value vs persistent default value.
• Removed rarely useful SetNewWindowDefaultPos() in favor of new API.
• Fixed hovering of lower-right resize grip when it is above a child window.
• Fixed InputInt() writing to output when it doesn't need to.
• Added IMGUI_INCLUDE_IMGUI_USER_H define to include user file at the bottom of imgui.h without modifying the vanilla distribution.
• ImGuiStorage helper can store float + added helpers to get pointer to stored data.
• Setup Travis CI integration. Builds the OpenGL examples on Linux with GCC and Clang.
• Examples: Added a "Fixed overlay" example in ShowTestWindow().
• Examples: Re-added OpenGL 3 programmable-pipeline example (along with the existing fixed pipeline example).
• Examples: OpenGL examples can now resize the application window.
• Other minor fixes and comments.

v1.17

• Added ImGuiWindowFlags_AlwaysAutoResize + example app.
• Calling ImGui::SetWindowSize(0,0) force an autofit without zero-sizing first.
• ImGui::InputText() support for completion/history/custom callback + added fancy completion example in the console demo app.
• Not word-wrapping on apostrophes.
• Increased visibility of check box and radio button with smaller size.
• Smooth mouse scrolling on OSX (uses floating point scroll/wheel input).
• New version of IMGUI_ONCE_UPON_A_FRAME helper macro that works with all compilers.
• Moved IO.Font*** options to inside the IO.Font-> structure.. Added IO.FontGlobalScale setting (in addition to Font->Scale per individual font).
• Fixed more Clang -Weverything warnings.
• Examples: Added DirectX11 example application.
• Examples: Created single .sln solution for all example projects.
• Examples: Fixed DirectX9 example window initially showing an hourglass cursor.
• Examples: Removed Microsoft IME handler in examples, too niche/confusing. Moved equivalent code to imgui.cpp instruction block.

v1.16

• General fixing of Columns API to allow filling a cell with multiple widgets before switching to the next column.
• Added documentation INDEX to top of imgui.cpp.
• Fixed unaligned memory access for Emscripten compatibility.
• Various pedantic warning fixes (now testing with Clang).
• Added extra asserts to catch incorrect usage.
• PushStyleColor() / PushStyleVar() can be used outside the scope of a window (namely to change variables that are used within the Begin() call).
• PushTextWrapPos() defaults to 0.0 (right-end of current drawing region).
• Fixed compatibility with std::vector if user decide to #define ImVector.
• MouseWheel input is now normalized.
• Added IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT compile-time option to redefine the vertex layout.
• Style editor: colors listed inside a scrolling region.
• Examples: tweaks and fixes.

v1.16b

• Fix broken PopStyleVar() - crashing.

v1.15

• Renamed IsHovered() to IsItemHovered().
• Added word-wrapping API: TextWrapped(), PushTextWrapPos(), PopTextWrapPos().
• Added IsItemFocused() to tell if last widget is being focused for keyboard input.
• Added overloads of ImGui::PlotLines() and ImGui::PlotHistogram() taking a function pointer to get values.
• Added SetWindowSize().
• Added GetContentRegionMax() supporting columns. Some bug fixes with using columns.
• Added PushStyleVar(),PopStyleVar() helpers to modify style from user code.
• Added dummy IMGUI_API definition in front of all entry-points for silly DLL action.
• Allowing BeginChild() allows to specify negative sizes to specify "use remaining minus xx".
• Windows with the NoResize flag can still use auto-fitting.
• Added a simple example console into the demo window.
• Comments and fixes.

v1.14

• Comments and fixes.
• Added SetKeyboardFocusHere() to set input focus from code.
• Added GetWindowFont(), GetWindowFontSize() for users of the low-level ImDrawList API.
• Added a UserData void *pointer so that the callback functions can access user state "Just in case a project has adverse reactions to adding globals or statics in their own code."
• Renamed IMGUI_INCLUDE_IMGUI_USER_CPP to IMGUI_INCLUDE_IMGUI_USER_INL

v1.13

• Added support for UTF-8 for international text display and text edition/input (if the font supports it).
• Added sample "M+ font" by Coji Morishita in extra_fonts/ to display Japanese text.
• Added IO.ImeSetInputScreenPosFn callback for positioning OS IME input.
• Added IO.FontFallbackGlyph (default to '?').
• OpenGL example: added commented code to load custom font from file-system.
• OpenGL example: shared makefile for Linux and MacOSX.

v1.12

• Added IO.FontBaseScale value for easy scaling of all windows.
• Added IsMouseHoveringWindow(), IsMouseHoveringAnyWindow(), IsPosHoveringAnyWindow() helpers.
• Added va_list variations of all functions taking ellipsis (...) parameters.
• Added section in documentation to explicitly document cases of API breaking changes (e.g. renamed IM_MALLOC below).
• Moved IM_MALLOC / IM_FREE defines. to IO structure members that can be set at runtime (also allowing precompiled ImGui to cover more use cases).
• Fixed OpenGL samples for Retina display.
• Comments and minor fixes.