v0.9.1

• Add a LuaCATS definition file for IDE language servers (in the Releases page on GitHub)
• Clarify error messages occurring during font loading are font-related [p=2776476]
• Differentiate between integer/number in the documented Lua signatures
• Document CollapsingHeader's and Selectable's p_* parameters as optional
• Fix assertion failure when setting an empty drag/drop payload
• Fix incorrect values of ModFlags_{Alt,Shift,Super} in 0.8 shims
• Prevent stuck keys when keyboard capture is released from an action's global shortcut key [p=2765259]
• Remove ReaImGui_Hello World.eel from the ReaPack package
• Update to dear imgui v1.90.6 <https://github.com/ocornut/imgui/releases/tag/v1.90.6>

C++ bindings:
• Annotate Begin* and Create* functions as [[nodiscard]]
• Fix all pointer parameters being effectively optional

gfx2imgui:
• Clamp excessively large requested font sizes [p=2781729]

API changes:
• Add StyleVar_TableAngledHeadersTextAlign
• Add TreeNodeFlags_SpanTextWidth
• ProgressBar accepts negative 'fraction' values for indeterminate mode

v0.9.0.2

• Fix 0.9 not switching the active font texture to the current DPI in dockers
• Fix 0.9 shims letting through unknown virtual key codes and asserting
• macOS: fix incorrect clipping in the Metal renderer if the clip rect's origin is smaller than the window's position
• Windows: repair drag-docking over floating dockers

v0.9.0.1

• Hotfix: repair docking on Windows

v0.9

• Add an action to open the HTML documentation
• Add a setting to disable hardware acceleration (Direct3D on Windows and OpenGL on macOS only) [p=2763726]
• Add saving and restoring UI state in REAPER screensets
• Document the minimum compatible version of each API function
• Fix list clippers not always using the specified context
• Fix v0.8.7's incorrect shim of ListClipper_ForceDisplayRangeByIndices
• Implement error detection in the OpenGL renderer
• Improve accuracy when scaling up fonts for HiDPI
• Limit image width/height to 8192 pixels
• Reduce the maximum count of per-context attachments to 1024
• Report an error when using an EEL callback function outside of a callback
• Support toggling WindowFlags_NoInputs after window creation
• Throw an error when resources are wastefully re-created every frame
• Update Dear ImGui to v1.90.5
• Linux: fix input of multiple ponctuation keys (+ PrintScreen on every platform)
• Linux: fix more cases of window positions going out of sync with the WM [#16]
• Linux: workaround windows taking a long time to open on KDE + Wayland + Intel GPUs [p=2769385]
• Linux: macOS: fix detection of the mouse hovering another application
• macOS: disable the Metal renderer and default to OpenGL on macOS earlier than 10.11
• macOS: don't stretch contents when resizing OpenGL windows using system decorations
• macOS: fix off-by-one mouse cursor position at the bottom of the screen
• macOS: fix stuck left mouse button if it's pressed before Ctrl and right click emulation is enabled
• macOS: fix the OpenGL renderer failing on macOS 10.9 [p=2766024]
• macOS: re-initialize OpenGL after moving a window to another monitor
• Windows: fix missing preview when dragging files from the Media Explorer
• Windows: fix possible file drop false positive when the cursor is near another window

C++ bindings (reaper_imgui_functions.h):
• Add binary backward compatibility and minimum version check
• Add error reporting by locally throwing ImGui_Error
• Add ImGui::load() to initialize the API instead of lazy-loading on call
• Now requires C++17 or newer
• Pass optional scalars directly by value

Lua bindings (imgui.lua):
• Complete redesign of the backward-compatibility shim system
• Return a table containing the functions from the requested API version
  - Allow multiple modules within the same action to use different API versions
  - Numeric constants are exposed as values rather than functions
• Simplify the recommended example snippets using GetBuiltinPath + require

Python bindings:
• Remove ImGui_ prefix from function names and rename to imgui.py

Demo script:
• Examples > Custom rendering > Draw Channels
• Layout & Scrolling > Child windows > Auto-resize with constraints
• Layout & Scrolling > Child windows > Manual-resize
• Layout & Scrolling > Overlap Mode
• Tables > Angled headers
• Tables > Row height
• Tools > Item Picker
• Widgets > Drag and Drop > Tooltip at target location
• Widgets > Text Input > Miscellaneous
• Widgets > Tooltips

gfx2imgui.lua:
• Add REAPER v7.03's getchar(65536)&8 and getchar(65537), fix &4
• Support setfont with more than one font flag
• Trigger gfx.triangle's line heuristic with more than 2 unique points
• Various performance optimizations

API changes:
• Add 'alpha_mul' optional parameter to GetColorEx
• Add BeginItemTooltip and SetItemTooltip
• Add ChildFlags_{AlwaysAutoResize,AlwaysUseWindowPadding,{,Auto}Resize{X,Y},Border,FrameStyle,None}
• Add ComboFlags_WidthFitPreview
• Add ConfigVar_HoverStationaryDelay and _HoverFlagsForTooltip{Mouse,Nav}
• Add DebugFlashStyleColor and DebugStartItemPicker
• Add DrawList_AddConcavePolyFilled and DrawList_PathFillConcave
• Add DrawList_{AddEllipse{,Filled}} and DrawList_PathEllipticalArcTo
• Add GetBuiltinPath (shortcut for "$resource_path/Scripts/ReaTeam Extensions/API")
• Add HoveredFlags_AllowWhenOverlappedBy{Item,Window} and _ForTooltip
• Add IsKeyChordPressed
• Add Key_F{13..24} and Key_App{Back,Forward}
• Add ListClipper_IncludeItemByIndex and rename _IncludeRangeByIndices to _IncludeItemsByIndex
• Add PopupFlags_NoReopen
• Add StyleVar_{Tab,TabBar}BorderSize and TabItemFlags_NoAssumedClosure
• Add TableAngledHeadersRow, TableColumnFlags_AngledHeader and StyleVar_TableAngledHeadersAngle
• Add TableFlags_HighlightHoveredColumn
• Add TreeNodeFlags_SpanAllColumns
• Remove BeginChildFrame and EndChildFrame (use BeginChild+ChildFlags_FrameStyle instead)
• Remove DestroyContext (was not useful since 0.5)
• Remove support of Windows virtual key codes (was deprecated in 0.6)
• Remove TableGetColumnSortSpecs's redundant sort_order return value
• Remove WindowFlags_AlwaysUseWindowPadding
• Rename ShowStackToolWindow to ShowIDStackToolWindow
• Rename {Selectable,TreeNode}Flags_AllowItemOverlap to _AllowOverlap
• Replace BeginChild's (bool)border parameter with (int)child_flags
• Replace SetItemAllowOverlap (after the item) with SetNextItemAllowOverlap (before the item)
• Set TableNeedSort's has_specs to false when not sorting in tristate mode
• Swap the column_{index,user_id} return values of TableGetColumnSortSpecs

v0.8.7.6

• Fix a brief display of uninitialized pixels when opening docked windows
• Fix a crash when REAPER quits while a frame is still open
• Fix TableGetColumnSortSpecs accepting invalid negative indices
• Handle font size truncation when computing rendering scale
• macOS: fix fallback for missing font families in recent OS versions
• macOS: fix window position desync when changing monitor resolution in recent OS versions [p=2732554]
• Linux: fix windows not staying in place under certain monitor scales [#13]
• Linux: repair HiDPI scaling (regression from v0.8) [p=2752987]

v0.8.7.5

• Fix compatibility of file drag and drop with dear imgui v1.89.4
• Focus new docked windows when they are the only tab in the docker [p=2724239]
• Windows: fix detection of the "multimonitor aware" HiDPI mode on Windows 8.1 [p=2724812]
• Windows: fix windows not staying in place after moving under certain monitor scales [p=2724640]

gfx2imgui:
• Fix replacing images after (re)initializing gfx
• Harden gradrect to gracefully handle bogus Infinity/NaN delta arguments

v0.8.7.4

• Fix a crash when undocking via the context menu since 0.8.7.3

v0.8.7.3

• Report stored size when opening a docked window [p=2700189]
• macOS and Windows: fix a memory leak and potential crash when the renderer fails to initialize
• macOS: fix a crash when pressing mouse buttons higher than 5
• macOS: fix a memory leak and a potential crash in the Metal renderer when images are incorrectly re-created every frame while a window is occluded [p=2698614]
• macOS: fix mouse events not reaching REAPER after opening a native menu while a mouse button is down then pressing another button
• macOS: release mouse capture on window focus changes [p=2695756]
• macOS: send a single right-click event when handling the "Control+left-click emulates right-click" setting

v0.8.7.2

• Fix a crash when windows are closed out of ownership order while a mouse button is down
• macOS: fix the x86_64 release binary not containing FreeType2 since 0.8.7 [p=2694907]

v0.8.7.1

• Fix imgui.lua always applying all available shims

v0.8.7

• Add a context menu with "move to docker"/undock/close actions to docker tabs
• Allow docked windows to be resized down to 10x10px [p=2691001]
• Fix docked windows not opening with focus [p=2690820]
• Fix usage of the Attach function in Python ReaScripts [#11]
• Update to dear imgui v1.89.6 <https://github.com/ocornut/imgui/releases/tag/v1.89.6>
• Linux: fix window position desync when the WM denies or alter the move request [p=2670425]
• Linux: implement mouse events passthrough via WindowFlags_NoInputs [p=2684289]
• macOS: restore compatibility with macOS 10.9–10.12 (accidentally lost in v0.8)
• Windows: add a title bar context menu when native decorations are enabled
• Windows: disable DirectX feature toggling fullscreen when pressing Alt+Enter
• Windows: don't bring REAPER back to front when focusing another app while a topmost window is shown [p=2684110]

API changes:
• Rename ListClipper_ForceDisplayRangeByIndices to ListClipper_IncludeRangeByIndices

v0.8.6.1

• macOS: restore accidentally disabled clipboard I/O

v0.8.6

• Add a button to restore default settings in the preferences page
• Don't give focus to the first setting when opening the preferences page [t=277729]
• Enable docking by default (ConfigFlags_DockingEnable) and expose a user setting
• Fix 1-frame flicker after uploading a new texture
• Fix a use-after-free when calling an EEL function after an assertion failure
• Fix crashes when removing/uploading textures every frame [p=2663379]
• Fix name conflict between the ImGui_Image type and function in the C++ header
• Revert "disable ConfigVar_InputTrickleEventQueue by default" [p=2664743]
• Update to dear imgui v1.89.5 <https://github.com/ocornut/imgui/releases/tag/v1.89.5>

API changes:
• Move the C++ API functions to a ImGui namespace

v0.8.5

• Add a new API for running EEL programs
• Collect all errors in a single report window
• Disable ConfigVar_InputTrickleEventQueue by default
• Fix duplicate error reports when failing to end a frame
• Remove global object count limit (limit context attachments instead)
• Update to dear imgui v1.89.4 <https://github.com/ocornut/imgui/releases/tag/v1.89.4>
• macOS: fix stuck keys when undocking while a key is down
• macOS: follow the "Control+left-click emulates right-click" setting [t=277197]
• Windows: fix a regression in the OpenGL renderer causing crashes [p=2656531]

Documentation:
• Add a table of contents of the entire category tree
• Insert links for references with trailing wildcards (eg. StyleVar_*)

gfx2imgui:
• Add REAPER v6.75's gfx.getchar second return value
• Implement (partial) blit rotation
• More compatibility improvements and performance optimizations

API changes:
• Add 'callback' parameter to InputText* and SetNextWindowSizeConstraints
• Add a boolean return value to BeginTooltip
• Add ConfigVar_DebugBeginReturnValue{Once,Loop}
• Add CreateFunctionFromEEL and Function_*
• Add InputTextFlags_Callback{Always,CharFilter,Completion,Edit,History}
• Renamed {Push,Pop}AllowKeyboardFocus to {Push,Pop}TabStop

v0.8.4

• Fill the HWND text of docked windows with the tab name [p=2649553]
• Fix "Too many vertices in ImDrawList" assertion when adding many draw calls during the first 2 frames of a context
• Fix a crash when opening a window more than 1 minute after the last one in the same context [p=2639537]
• Fix two cases of stuck mouse buttons and keyboard keys after closing windows
• Ignore warnings when loading PNG images
• Lua demo: replace `r.ImGui_` prefix with `ImGui.`
• macOS: fix a crash when destroying a window immediately after receiving focus
• macOS: fix stuck buttons and keys after a native menu is opened
• macOS: update window position when resizing via native decorations
• Re-raise the minimum OpenGL version to 3.2
• Update dear imgui to v1.89.3 <https://github.com/ocornut/imgui/releases/tag/v1.89.3>
• Windows: fix a memory leak in the Direct3D 10 renderer [p=2639587]
• Windows: fix incorrect monitor work area calculation in some cases [p=2639793]

gfx2imgui:
• Fix multiple text aligment and clipping bugs [p=2646948]
• Fix preloading fonts after gaps in slot indices
• Fix stuck mouse buttons after focus loss [p=2647387]
• Improve rendering of lines with fractional scaling [p=2646948]
• Various compatibility improvements and performance optimizations

API changes:
• Add MouseCursor_None
• Add NumericLimits_{Double,Int}
• Add SeparatorText and StyleVar_SeparatorText{BorderSize,Align,Padding}

v0.8.3

• Add actions to toggle boolean settings
• Adjust the top docker's hit box for the tabbar, transport and toolbar above
• Fix a crash when undocking by dragging the top-left corner triangle
• Reduce memory usage when docking is enabled
• Update dear imgui to v1.89.2 <https://github.com/ocornut/imgui/releases/tag/v1.89.2>

imgui.lua:
• Extend 0.8 shims for window boundary extension to cover End{Popup,Table,Tooltip}
• Fix 0.7 shim of CaptureKeyboardFromApp [p=2633349]
• Fix 0.8 shims eating the return values of TableNext{Column,Row} and TableSetColumnIndex [p=2632656]
• Fix 0.8 shims making EndGroup move the cursor to the wrong Y position [p=2632446]

API changes:
• Remove IsWindowCollapsed (broken since v0.5)

v0.8.2

• Add user settings for docking with Shift only, docking splitting and docking window transparency
• Automatically open tabs for dropping windows when hovering REAPER dockers or main window sides
• Disable mouse input when captured by a window belonging to a different context
• Fix a crash when moving dockers with a single window on the left or top side of a split
• Fix parameters with two characters names missing from the documentation
• Make the settings page's help text behave more similarly to native pages
• Re-enable drawing the background of empty dockers
• Reuse the existing native window when dropping a window back into the same docker
• Use the system theme text color in the error dialog
• macOS: fix crash/corruption in the Metal renderer due to GPU buffers being incorrectly resized
• Linux: compile libjpeg-turbo into the binary for compatibility with Fedora [p=2627734]
• Linux: fix windows not gaining focus on first click since v0.8
• Linux: replace window z-order heuristic with proper hit-testing
• Windows: filter out \b\e\r\n\t from the character input queue
• Windows: fix assertion failure in some HiDPI monitor configurations [p=2616056][p=2620880][p=2622681]
• Windows: follow the "Use large (non-tool) window frames for windows" setting
• Windows: temporarily disable usage under non-multimonitor aware HiDPI modes [p=2629558]
• Windows: treat non-client window area as passthrough when hit-testing

imgui.lua:
• Exceptionally add shims to restore pre-0.8 values for GetKeyMods
• Extend 0.8's shims for window boundary extension to cover table cells

v0.8.1

• imgui.lua: add shims for dear imgui 1.89's obsoleted window boundary extension via SetCursorPos
• macOS: fix the Metal renderer crashing (observed on macOS 12 ARM)

v0.8

• Add a user settings page in Preferences > Plug-ins > ReaImGui:
  - Option to disable restoration of saved settings ("safe mode")
  - Option to select which graphics renderer to use
• Display indirect errors in a custom, more user-friendly dialog
• Implement bitmap image loading (PNG and JPEG from a file or memory) and image sets (per-DPI variants)
• macOS: add a Metal renderer (new default, requires El Capitan or newer)
• Share GPU textures with all windows in the same context (except on Linux due to a GDK 3 limitation)
• Update dear imgui to v1.89.1 <https://github.com/ocornut/imgui/releases/tag/v1.89> and <https://github.com/ocornut/imgui/releases/tag/v1.89.1>
• Windows: add a Direct3D 10 renderer (new default)
• Windows: disable minimizing and use the tool window style when decorations are enabled
• Windows: support mouse input everywhere in windows straddling multiple monitors with mixed DPI scales

Documentation:
• DRI-ify default argument values (code + doc using a single source of truth)
• Hide the "ImGui_" prefix
• More accurate line number ranges in links to source code
• Reorganize all functions in hierarchical, individually documented sections
• Rich-text formatting (Markdown <3)
• Syntax highlighting of code samples (if client-side Javascript is enabled)

API changes:
• Add {Attach,Detach} for linking the liftime of any object with a context
• Add ConfigFlags_NavNoCaptureKeyboard
• Add ConfigVar_HoverDelay{Normal,Short} and ConfigVar_InputTextEnterKeepActive
• Add GetFramerate
• Add HoveredFlags_{Delay{Normal,Short},NoSharedDelay}
• Add Image{,Button} and DrawList_AddImage{,Quad,Rounded}
• Add InputTextFlags_EscapeClearsAll
• Add Key_Mouse*
• Add Mod_Shortcut (alias for _Ctrl on Linux & Windows and _Super, the Cmd key, on macOS)
• Remove {Attach,Detach}Font (replaced by generic {Attach,Detach} functions)
• Rename ModFlags_* to Mod_*

v0.7.2

• Fix window under the window under mouse getting hovered for 1 frame on mouse release
• macOS: fix crash when the context is destroyed while a window is docked
• macOS: fix framebuffer size not updating when switching from another docker tab
• macOS: fix non-initial windows not gaining focus on open
• Windows: fix multiple DPI scaling issues

API changes:
• Add GetWindowDpiScale

gfx2imgui:
• Add GFX2IMGUI_NO_BLIT_PREMULTIPLY option [p=2609372]
• Fix nearest font selection when sizes smaller than requested are loaded [p=2609372]
• Keep alive fonts while they're actively being drawn from a blitted buffer [p=2609372]
• Warn when substituting font for the default one