add pretranslate message hook

1 files changed, 5 insertions, 0 deletions

diff --git a/alf/alf.h b/alf/alf.h
index 0c32a20..38e3b0b 100644
--- a/alf/alf.h
+++ b/alf/alf.h
@@ -22,6 +22,7 @@ typedef struct {
     LRESULT (*message)(void * /*closure*/, HWND, UINT, WPARAM, LPARAM);
     LRESULT (*command)(void * /*closure*/, HWND /*window*/, WORD /*notificationcode*/, WORD /*sourceid*/, HWND /*control*/);
     LRESULT (*notify)(void * /*closure*/, HWND /*window*/, WPARAM /*sourceid*/, NMHDR *);
+    BOOL (*pretranslatemessage)(void * /*closure*/, HWND /*window*/, MSG * /*message*/);
 } ALFWindowVTable;
 
 // layout flags
@@ -53,6 +54,7 @@ typedef struct {
 #define ALF_WM_SETLAYOUTPARAMS  (ALF_WM__BASE + 14)
 #define ALF_WM_GETWIDGETATPOS   (ALF_WM__BASE + 15)
 #define ALF_WM_APPLYFONTS       (ALF_WM__BASE + 16)
+#define ALF_WM_PRETRANSLATEMSG  (ALF_WM__BASE + 17)
 
 typedef struct {
     const TCHAR    *className;
@@ -102,6 +104,9 @@ ALF_DestroyWindow(HWND win);
 ALFAPP
 ALF_ApplicationFromWindow(HWND hwnd);
 
+BOOL
+ALF_PreTranslateMessage(HWND hwnd, MSG *message);
+
 int
 ALF_CentipointsToPixels(HWND win, int cptValue);