More header control stuff: resize handling/header control repositioning.

1 files changed, 16 insertions, 1 deletions

diff --git a/wintable/new/header.h b/wintable/new/header.h
index 213516a..374aaa4 100644
--- a/wintable/new/header.h
+++ b/wintable/new/header.h
@@ -4,6 +4,7 @@ static void makeHeader(struct table *t, HINSTANCE hInstance)
 {
 	t->header = CreateWindowExW(0,
 		WC_HEADERW, L"",
+		// don't set WS_VISIBLE; according to MSDN we create the header hidden as part of setting the initial position (http://msdn.microsoft.com/en-us/library/windows/desktop/ff485935%28v=vs.85%29.aspx)
 		// TODO WS_BORDER?
 		// TODO is HDS_HOTTRACK needed?
 		WS_CHILD | HDS_FULLDRAG | HDS_HORZ | HDS_HOTTRACK,
@@ -21,5 +22,19 @@ static void destroyHeader(struct table *t)
 
 static void repositionHeader(struct table *t)
 {
-	// TODO http://msdn.microsoft.com/en-us/library/windows/desktop/hh298357%28v=vs.85%29.aspx
+	RECT r;
+	WINDOWPOS wp;
+	HDLAYOUT l;
+
+	if (GetClientRect(t->hwnd, &r) == 0)
+		panic("error getting client rect for Table header repositioning");
+	l.prc = &r;
+	l.pwpos = ℘
+	if (SendMessageW(t->header, HDM_LAYOUT, 0, (LPARAM) (&l)) == FALSE)
+		panic("error getting new Table header position");
+	if (SetWindowPos(t->header, wp.hwndInsertAfter,
+		wp.x, wp.y, wp.cx, wp.cy,
+		// see above on showing the header here instead of in the CreateWindowExW() call
+		wp.flags | SWP_SHOWWINDOW) == 0)
+		panic("error repositioning Table header");
 }