diff --git a/imgui.cpp b/imgui.cpp
index 26d055dd21ff..db3d880fae35 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -7389,7 +7389,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
 
         // Clamp position/size so window stays visible within its viewport or monitor
         // Ignore zero-sized display explicitly to avoid losing positions if a window manager reports zero-sized window when initializing or minimizing.
-        if (!window_pos_set_by_api && !(flags & ImGuiWindowFlags_ChildWindow))
+        if (!window_pos_set_by_api && !(flags & ImGuiWindowFlags_ChildWindow) && !(flags & ImGuiWindowFlags_NoPosClamp))
             if (viewport_rect.GetWidth() > 0.0f && viewport_rect.GetHeight() > 0.0f)
                 ClampWindowPos(window, visibility_rect);
         window->Pos = ImTrunc(window->Pos);
diff --git a/imgui.h b/imgui.h
index 429bb7480b58..baeaec187884 100644
--- a/imgui.h
+++ b/imgui.h
@@ -1090,6 +1090,7 @@ enum ImGuiWindowFlags_
     ImGuiWindowFlags_NoNavInputs            = 1 << 16,  // No keyboard/gamepad navigation within the window
     ImGuiWindowFlags_NoNavFocus             = 1 << 17,  // No focusing toward this window with keyboard/gamepad navigation (e.g. skipped by CTRL+TAB)
     ImGuiWindowFlags_UnsavedDocument        = 1 << 18,  // Display a dot next to the title. When used in a tab/docking context, tab is selected when clicking the X + closure is not assumed (will wait for user to stop submitting the tab). Otherwise closure is assumed when pressing the X, so if you keep submitting the tab may reappear at end of tab bar.
+    ImGuiWindowFlags_NoPosClamp             = 1 << 19,  // No position clamping to window bounds
     ImGuiWindowFlags_NoNav                  = ImGuiWindowFlags_NoNavInputs | ImGuiWindowFlags_NoNavFocus,
     ImGuiWindowFlags_NoDecoration           = ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoCollapse,
     ImGuiWindowFlags_NoInputs               = ImGuiWindowFlags_NoMouseInputs | ImGuiWindowFlags_NoNavInputs | ImGuiWindowFlags_NoNavFocus,