add functions for centering a toplevel window on the monitor

1 files changed, 12 insertions, 0 deletions

diff --git a/alf/alf.h b/alf/alf.h
index db0481f..6140e60 100644
--- a/alf/alf.h
+++ b/alf/alf.h
@@ -470,6 +470,18 @@ ALF_Toplevel_SetDefaultButton(HWND win, WORD id);
 void
 ALF_Toplevel_SetDefaultFont(HWND toplevel);
 
+void
+ALF_Toplevel_CenterOnMonitor(HWND toplevel, HMONITOR monitor);
+
+void
+ALF_Toplevel_CenterOnCurrentMonitor(HWND toplevel);
+
+void
+ALF_Toplevel_CenterOnOwnerMonitor(HWND toplevel);
+
+void
+ALF_Toplevel_CenterOnPrimaryMonitor(HWND toplevel);
+
 // label
 
 HWND