Initialize before use in a new frame. We always have a command ready in the buffer. In the majority of cases, you would want to call PushClipRect() an

This is used by ImGui::PushFont()/PopFont(). It works because we never use _TextureIdStack[] elsewhere than in PushTextureID()/PopTextureID().

@brief Send joystick callback **/

traverse the layout to locate the nearest character to a display position

API click: on mouse down, move the cursor to the clicked location, and reset the selection

discard the oldest entry in the undo list

API drag: on mouse drag, move the cursor and selection endpoint to the clicked location

find the x/y location of a character, and remember info about the previous row in case we get a move-up event (for page up, we'll have to rescan)

stb_textedit internally allows for a single undo record to do addition and deletion, but somehow, calling the stb_textedit_paste() function creates tw

canoncialize the selection so start <= end

[DEAR IMGUI] Added stb_textedit_text(), extracted out and called by stb_textedit_key() for backward compatibility.

find minimum y position if it starts at x1

rects array must be big enough to accommodate all characters in the given ranges

check if a utf8 string contains a prefix which is the utf16 string; if so return length of matching utf8 string

Cubic Bezier takes 4 controls points

Quadratic Bezier takes 3 controls points

Ellipse

Load embedded ProggyClean.ttf at size 13, disable oversampling

Guaranteed to honor 'num_segments'

Guaranteed to honor 'num_segments'

Current score encoding (lower is highest priority): - 0: ImGuiInputFlags_RouteGlobal | ImGuiInputFlags_RouteOverActive - 1: ImGuiInputFlags_Active

Helper to snap on edges when aiming at an item very close to the edge, So the difference between WindowPadding and ItemSpacing will be in the visible

Advanced: Channels - Use to split render into layers. By switching channels to can render out-of-order (e.g. submit FG primitives before BG primitives

If you get an error please report on GitHub. You may try different GL context version or GLSL version.

Zero-clear except IO as we preserve IO.Requests[] buffer allocation.

Create hidden Window + device + DX12 swapchain

Helper functions to use DirectX11

Helper functions