treectrl click item always null

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I have this piece of code

C++

ON_NOTIFY(NM_CLICK ,ID_TREENOTES, OnClickTree)

void CShortcutPaneConfServer::OnClickTree(NMHDR* pNMHDR, LRESULT* pResult ) {
	CPoint pt;
     GetCursorPos( &pt );
     m_wndTreeNotes.ScreenToClient( &pt ) ;
	
	UINT nFlags = 0;
     HTREEITEM hItem = m_wndTreeNotes.HitTest( pt, &nFlags ) ;
     if( hItem == NULL  ||  !(nFlags & (TVHT_ONITEMLABEL|TVHT_ONITEMICON)) )
		return;

Unfortunately hItem is always NULL, even if I click on an Item... what's missing?

PS: Im in a mdichildframe, it could affect in some way cursor coordinates see screentoclient?

Posted 28-Feb-12 1:00am

druscelli

Updated 28-Feb-12 1:12am

Jochen Arndt

v2

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Schehaider_Aymen 28-Feb-12 7:20am

is it a MFC CTreeView based or CFormView with a CtreeCtr ??

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Schehaider_Aymen · Answer 1 · 2012-02-28T01:46:00

I think that you missed The Mouse location into your TreeCtrl, try as below :

C++

void CShortcutPaneConfServer::OnClickTree(NMHDR* pNMHDR, LRESULT* pResult ) {
// TODO: Add your control notification handler code here
*pResult = 0;

    CPoint Point;
    //retrieve the mouse position (missed in yout code)
         DWORD dwPos;
         dwPos = GetMessagePos(); 
         Point.x = LOWORD (dwPos);
         Point.y = HIWORD (dwPos); 


m_wndTreeNotes.ScreenToClient( &Point );
 UINT Flags = TVHT_ONITEMLABEL;
HTREEITEM ht = m_wndTreeNotes.HitTest( Point ,&Flags );
if( ht== NULL  ||  !(Flags & (TVHT_ONITEMLABEL|TVHT_ONITEMICON)) )
return;

}