Drag and Drop: fix using AcceptDragDropPayload() with ImGuiDragDropFlags_AcceptNoPreviewTooltip.

Window was not properly hidden in that case.

docs/CHANGELOG.txt

@@ -75,6 +75,7 @@ Other Changes:
 - InputInt/InputFloat: When used with Steps values and _ReadOnly flag, the step button look disabled. (#211)
 - InputText: Fixed named filtering flags disabling newline or tabs in multiline inputs (#4409, #4410) [@kfsone]
 - Drag and Drop: drop target highlight doesn't try to bypass host clipping rectangle. (#4281, #3272)
+- Drag and Drop: fix using AcceptDragDropPayload() with ImGuiDragDropFlags_AcceptNoPreviewTooltip. [@JeffM2501]
 - Menus: MenuItem() and BeginMenu() are not affected/overlapping when style.SelectableTextAlign is altered.
 - Menus: fix hovering a disabled menu or menu item not closing other menus. (#211)
 - Popups: fix BeginPopup/OpenPopup sequence failing when there are no focused windows. (#4308) [@rokups]

imgui.cpp

@@ -9960,7 +9960,7 @@ bool ImGui::BeginDragDropSource(ImGuiDragDropFlags flags)
             if (g.DragDropAcceptIdPrev && (g.DragDropAcceptFlags & ImGuiDragDropFlags_AcceptNoPreviewTooltip))
             {
                 ImGuiWindow* tooltip_window = g.CurrentWindow;
-                tooltip_window->SkipItems = true;
+                tooltip_window->Hidden = tooltip_window->SkipItems = true;
                 tooltip_window->HiddenFramesCanSkipItems = 1;
             }
         }