1 files changed, 15 insertions, 4 deletions
diff --git a/alf/alflayout.cpp b/alf/alflayout.cpp
index 0fa3473..470f728 100644
--- a/alf/alflayout.cpp
+++ b/alf/alflayout.cpp
@@ -214,8 +214,6 @@ ALF_Layout_CalcCheckboxSize(HWND hwndWindow, ALFLayout *layout, HWND hwndCheckbo
 {
     (void)hwndWindow;
 
-    int checkwidth = 12 * layout->dpi / 96 + 1;
-
     HDC hDC = GetDC(hwndCheckbox);
     HFONT font = (HFONT)SendMessage(hwndCheckbox, WM_GETFONT, 0, 0);
     HFONT oldfont = SelectFont(hDC, font);
@@ -230,11 +228,24 @@ ALF_Layout_CalcCheckboxSize(HWND hwndWindow, ALFLayout *layout, HWND hwndCheckbo
     int cx = 0;
     GetCharWidth(hDC, '0', '0', &cx);
 
+    int checkwidth = 12 * layout->dpi / 96 + 1;
+    int checkheight = checkwidth;
+
+    if (!ALF_Compat_IsMinWindowsVersion(4, 0)) {
+        // 3.x-style checkboxes have the checkmark baseline-aligned
+        TEXTMETRIC tm;
+        ZeroMemory(&tm, sizeof(tm));
+
+        if (GetTextMetrics(hDC, &tm)) {
+            checkheight += tm.tmDescent;
+        }
+    }
+
     cx += checkwidth + r.right - r.left;
 
     int cy = r.bottom - r.top;
-    if (checkwidth > cy)
-        cy = checkwidth;
+    if (checkheight > cy)
+        cy = checkheight;
 
     if (ps->cx < cx)
         ps->cx = cx;