Win32: Fix maximization of undecorated windows

Fixes #899.
2026-09-19 15:25:50 +00:00 · 2017-10-31 15:47:01 +01:00
parent a7a70cf34d
commit 80d181f12d
2 changed files with 17 additions and 0 deletions
@@ -951,6 +951,22 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
                mmi->ptMaxTrackSize.y = window->maxheight + yoff;
            }

+            if (!window->decorated)
+            {
+                MONITORINFO mi;
+                const HMONITOR mh = MonitorFromWindow(window->win32.handle,
+                                                      MONITOR_DEFAULTTONEAREST);
+
+                ZeroMemory(&mi, sizeof(mi));
+                mi.cbSize = sizeof(mi);
+                GetMonitorInfo(mh, &mi);
+
+                mmi->ptMaxPosition.x = mi.rcWork.left - mi.rcMonitor.left;
+                mmi->ptMaxPosition.y = mi.rcWork.top - mi.rcMonitor.top;
+                mmi->ptMaxSize.x = mi.rcWork.right - mi.rcWork.left;
+                mmi->ptMaxSize.y = mi.rcWork.bottom - mi.rcWork.top;
+            }
+
            return 0;
        }