1 files changed, 79 insertions, 0 deletions
diff --git a/alf/alf.cpp b/alf/alf.cpp
index 605f663..9cc2a59 100644
--- a/alf/alf.cpp
+++ b/alf/alf.cpp
@@ -240,3 +240,82 @@ ALF_MessageBox(HWND hwnd, const TCHAR *text, const TCHAR *caption, UINT type)
 
     return retval;
 }
+
+BOOL
+ALF_ReflectMessage(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam, LRESULT *pRet)
+{
+    switch (msg) {
+        case WM_DRAWITEM: {
+            if (wparam) {
+                DRAWITEMSTRUCT *dis = (DRAWITEMSTRUCT *)lparam;
+                *pRet = SendMessage(dis->hwndItem, 0x2000 + WM_DRAWITEM, wparam, lparam);
+                return TRUE;
+            } else {
+                // sent by a menu
+                return FALSE;
+            }
+        }
+        case WM_MEASUREITEM: {
+            if (wparam) {
+                // no HWND in MEASUREITEMSTRUCT, need to find the control by its id
+                HWND hwndControl = ALF_ControlHwndById(hwnd, (WORD)wparam);
+                if (hwndControl) {
+                    *pRet = SendMessage(hwndControl, 0x2000 + WM_MEASUREITEM, wparam, lparam);
+                    return TRUE;
+                } else {
+                    return FALSE;
+                }
+            } else {
+                // sent by a menu
+                return FALSE;
+            }
+
+            return TRUE;
+        }
+        case WM_DELETEITEM: {
+            DELETEITEMSTRUCT *dis = (DELETEITEMSTRUCT *)lparam;
+            *pRet = SendMessage(dis->hwndItem, 0x2000 + WM_DELETEITEM, wparam, lparam);
+            return TRUE;
+        }
+        case WM_VKEYTOITEM:
+        case WM_CHARTOITEM:
+            *pRet = SendMessage((HWND)lparam, 0x2000 + msg, wparam, lparam);
+            return TRUE;
+        case WM_COMPAREITEM: {
+            COMPAREITEMSTRUCT *cis = (COMPAREITEMSTRUCT *)lparam;
+            *pRet = SendMessage(cis->hwndItem, 0x2000 + WM_COMPAREITEM, wparam, lparam);
+            return TRUE;
+        }
+        case WM_NOTIFY: {
+            NMHDR *nmhdr = (NMHDR *)lparam;
+            if (nmhdr->hwndFrom) {
+                *pRet = SendMessage(nmhdr->hwndFrom, 0x2000 + WM_NOTIFY, wparam, lparam);
+                return !!*pRet;
+            } else {
+                return FALSE;
+            }
+        }
+        case WM_COMMAND:
+            if (lparam) {
+                *pRet = SendMessage((HWND)lparam, 0x2000 + WM_COMMAND, wparam, lparam);
+                return !!*pRet;
+            } else {
+                return FALSE;
+            }
+        case WM_HSCROLL:
+        case WM_VSCROLL:
+            SendMessage((HWND)lparam, 0x2000 + msg, wparam, lparam);
+            return FALSE; // always continue processing in parent
+        case WM_CTLCOLOR:
+        case WM_CTLCOLORMSGBOX:
+        case WM_CTLCOLOREDIT:
+        case WM_CTLCOLORLISTBOX:
+        case WM_CTLCOLORBTN:
+        case WM_CTLCOLORSTATIC:
+        case WM_CTLCOLORSCROLLBAR:
+            *pRet = SendMessage((HWND)lparam, 0x2000 + msg, wparam, lparam);
+            return !!*pRet; // let owner handle color stuff if the control didn’t return a brush
+        default:
+            return FALSE;
+    }
+}