richedit: Updated internal style flags on EM_SHOWSCROLLBAR.

The internal style flags are used to determine whether to show or hide the scrollbar when ME_UpdateScrollBar is called. EM_SHOWSCROLLBAR seems to update this state in native richedit controls.

richedit: Updated internal style flags on EM_SHOWSCROLLBAR.
f42e151a · Dylan Smith · Alexandre Julliard · a051a231 · f42e151a
Commit f42e151a authored Jan 28, 2009 by Dylan Smith Committed by Alexandre Julliard Jan 28, 2009
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editor.c dlls/riched20/editor.c +22 -0

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--- a/dlls/riched20/editor.c
+++ b/dlls/riched20/editor.c
@@ -3183,6 +3183,28 @@ LRESULT ME_HandleMessage(ME_TextEditor *editor, UINT msg, WPARAM wParam,
  }
  case EM_SHOWSCROLLBAR:
  {
+    DWORD flags;
+
+    switch (wParam)
+    {
+      case SB_HORZ:
+        flags = WS_HSCROLL;
+        break;
+      case SB_VERT:
+        flags = WS_VSCROLL;
+        break;
+      case SB_BOTH:
+        flags = WS_HSCROLL|WS_VSCROLL;
+        break;
+      default:
+        return 0;
+    }
+
+    if (lParam)
+      editor->styleFlags |= flags;
+    else
+      editor->styleFlags &= flags;
+
    ITextHost_TxShowScrollBar(editor->texthost, wParam, lParam);
    return 0;
  }