Popups: Open+Begin popup combined functions helpers to create context menus.
Helpers to do OpenPopup+BeginPopup where the Open action is triggered by e.g. hovering an item and rightclicking.
IMPORTANT: Notice that BeginPopupContextXXX takes ImGuiPopupFlags just like OpenPopup() and unlike BeginPopup(). For full consistency, we may add ImGuiWindowFlags to the BeginPopupContextXXX functions in the future.
IMPORTANT: If you ever used the left mouse button with BeginPopupContextXXX() helpers before 1.92.6:
Before this version, OpenPopupOnItemClick(), BeginPopupContextItem(), BeginPopupContextWindow(), BeginPopupContextVoid() had 'a ImGuiPopupFlags popup_flags = 1' default value in their function signature.
Before: Explicitly passing a literal 0 meant ImGuiPopupFlags_MouseButtonLeft. The default = 1 meant ImGuiPopupFlags_MouseButtonRight.
After: The default = 0 means ImGuiPopupFlags_MouseButtonRight. Explicitly passing a literal 1 also means ImGuiPopupFlags_MouseButtonRight (if legacy behavior are enabled) or will assert (if legacy behavior are disabled).
TL;DR: if you don't want to use right mouse button for popups, always specify it explicitly using a named ImGuiPopupFlags_MouseButtonXXXX value.
Read "API BREAKING CHANGES" 2026/01/07 (1.92.6) entry in imgui.cpp or GitHub topic #9157 for all details.
Popups: Open+Begin popup combined functions helpers to create context menus. Helpers to do OpenPopup+BeginPopup where the Open action is triggered by e.g. hovering an item and rightclicking. IMPORTANT: Notice that BeginPopupContextXXX takes ImGuiPopupFlags just like OpenPopup() and unlike BeginPopup(). For full consistency, we may add ImGuiWindowFlags to the BeginPopupContextXXX functions in the future. IMPORTANT: If you ever used the left mouse button with BeginPopupContextXXX() helpers before 1.92.6: Before this version, OpenPopupOnItemClick(), BeginPopupContextItem(), BeginPopupContextWindow(), BeginPopupContextVoid() had 'a ImGuiPopupFlags popup_flags = 1' default value in their function signature. Before: Explicitly passing a literal 0 meant ImGuiPopupFlags_MouseButtonLeft. The default = 1 meant ImGuiPopupFlags_MouseButtonRight. After: The default = 0 means ImGuiPopupFlags_MouseButtonRight. Explicitly passing a literal 1 also means ImGuiPopupFlags_MouseButtonRight (if legacy behavior are enabled) or will assert (if legacy behavior are disabled). TL;DR: if you don't want to use right mouse button for popups, always specify it explicitly using a named ImGuiPopupFlags_MouseButtonXXXX value. Read "API BREAKING CHANGES" 2026/01/07 (1.92.6) entry in imgui.cpp or GitHub topic #9157 for all details.