Popups, Modals
- They block normal mouse hovering detection (and therefore most mouse interactions) behind them.
- If not modal: they can be closed by clicking anywhere outside them, or by pressing ESCAPE.
- Their visibility state (~bool) is held internally instead of being held by the programmer as we are used to with regular Begin*() calls.
- The 3 properties above are related: we need to retain popup visibility state in the library because popups may be closed as any time.
- You can bypass the hovering restriction by using ImGuiHoveredFlags_AllowWhenBlockedByPopup when calling IsItemHovered() or IsWindowHovered().
- IMPORTANT: Popup identifiers are relative to the current ID stack, so OpenPopup and BeginPopup generally needs to be at the same level of the stack.
This is sometimes leading to confusing mistakes. May rework this in the future.
- BeginPopup(): query popup state, if open start appending into the window. Call EndPopup() afterwards if returned true. ImGuiWindowFlags are forwarded to the window.
- BeginPopupModal(): block every interaction behind the window, cannot be closed by user, add a dimming background, has a title bar.
Popups, Modals - They block normal mouse hovering detection (and therefore most mouse interactions) behind them. - If not modal: they can be closed by clicking anywhere outside them, or by pressing ESCAPE. - Their visibility state (~bool) is held internally instead of being held by the programmer as we are used to with regular Begin*() calls. - The 3 properties above are related: we need to retain popup visibility state in the library because popups may be closed as any time. - You can bypass the hovering restriction by using ImGuiHoveredFlags_AllowWhenBlockedByPopup when calling IsItemHovered() or IsWindowHovered(). - IMPORTANT: Popup identifiers are relative to the current ID stack, so OpenPopup and BeginPopup generally needs to be at the same level of the stack. This is sometimes leading to confusing mistakes. May rework this in the future. - BeginPopup(): query popup state, if open start appending into the window. Call EndPopup() afterwards if returned true. ImGuiWindowFlags are forwarded to the window. - BeginPopupModal(): block every interaction behind the window, cannot be closed by user, add a dimming background, has a title bar.