Restricting the size of a splitter pane

CodeGuru content and product recommendations are editorially independent. We may make money when you click on links to our partners. Learn More.

I find the solution about restrict the size of the pane.

First derive class XSplitterWnd from CSplitterWnd,

Then handle the WM_ONSIZE,call the SetColInfo() and SetRowInfo() in OnSize function.

And handle the WM_MOUSEMOVE and WM_SETCURSOR to prevent user from changing size.

void XSplitterWnd::OnSize(UINT nType, int cx, int cy)

{

 RECT        rect;

 int         Height;

 GetClientRect( &rect );

 Height = rect.bottom – rect.top – 36;
 if ( m_pRowInfo != NULL )

  if ( Height < 0 )
   SetRowInfo( 0, 1, 1);
  else
   SetRowInfo( 0, Height, Height );

 CSplitterWnd::OnSize(nType, cx, cy);

 // TODO: Add your message handler code here
}

void XSplitterWnd::OnMouseMove(UINT nFlags, CPoint point)
{
 // TODO: Add your message handler code here and/or call default

 //CSplitterWnd::OnMouseMove(nFlags, point);
}

void XSplitterWnd::OnLButtonDown(UINT nFlags, CPoint point)
{
 // TODO: Add your message handler code here and/or call default

 //CSplitterWnd::OnLButtonDown(nFlags, point);
}

BOOL XSplitterWnd::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message)
{
 // TODO: Add your message handler code here and/or call default

 //return CSplitterWnd::OnSetCursor(pWnd, nHitTest, message);
 return FALSE;
}

Any comments and suggests, please let me know.

Regards, Sesame

Date Last Updated: March 24, 1999