ToolTips on ListView Header

[Yura Moldavanov]

Hello, All!

I have a problem with putting the ToolTips on ListView Header

ToolTip Text Property must changes depending on column, which is under
mosue cursor.

Problem 1. Standatr .Net class TooTip is not shown, when mouse not in the
client area of ListView.
I trying to solve this through Win Api CreateEx function, SendMessage e t.c.
But therein lies a problem for me that I can't to know which column is under
mouse cursor.

Please help me to find optimal solution how to set ToolTip on LiseView
Header, which show the current column Title...

 

[Yura Moldavanov]

I think I solve this question

Can I do it without WINAPI SendMessage () ?

 

[cyrille]

I think I solve this question

How ?

 

[Yura Moldavanov]

If you wish I can send full source code to your e-mail.
-------------------------------------------------------

protected override void WndProc(ref Message m)
{
if (m.Msg==WM_NOTIFY )
{
NMHDR nm =(NMHDR) m.GetLParam(typeof(NMHDR));
if (nm.code==HDN_ITEMCHANGEDW)
{
int right=0;
int left=0;
TOOLINFO ti=new TOOLINFO();
ti.cbSize=Marshal.SizeOf(ti);
ti.uFlags=TTF_SUBCLASS;
ti.hWnd=headerHandle;
for (int i=0; i<this.Columns.Count; i++)
{
if (i<this.Columns.Count)
right+=this.Columns.Width;
else
right=this.Width;
ti.uID=i;
if (i<this.Columns.Count)
ti.pszText=this.Columns.Text;
else
ti.pszText="";
Rectangle rect= new System.Drawing.Rectangle(left,0,right,20);
ti.rect=rect;
// SendMessage(toolTipHandle, TTM_DELTOOLW, 0, ref ti);
SendMessage(toolTipHandle, TTM_ADDTOOLW, 0, ref ti);
left=right;
}
}
}
base.WndProc (ref m);
}

 

[cyrille]

protected override void WndProc(ref Message m)
{
if (m.Msg==WM_NOTIFY )
{
NMHDR nm =(NMHDR) m.GetLParam(typeof(NMHDR));
if (nm.code==HDN_ITEMCHANGEDW)
{
int right=0;
int left=0;
TOOLINFO ti=new TOOLINFO();
ti.cbSize=Marshal.SizeOf(ti);
ti.uFlags=TTF_SUBCLASS;
ti.hWnd=headerHandle;
for (int i=0; i<this.Columns.Count; i++)
{
if (i<this.Columns.Count)
right+=this.Columns.Width;
else
right=this.Width;
ti.uID=i;
if (i<this.Columns.Count)
ti.pszText=this.Columns.Text;
else
ti.pszText="";
Rectangle rect= new System.Drawing.Rectangle(left,0,right,20);
ti.rect=rect;
// SendMessage(toolTipHandle, TTM_DELTOOLW, 0, ref ti);
SendMessage(toolTipHandle, TTM_ADDTOOLW, 0, ref ti);
left=right;
}
}
}
base.WndProc (ref m);
}

How do you initialize 'headerHandle' ?

cyrille

 

[Yura Moldavanov]

headerHandle = (IntPtr)SendMessage((int)Handle, LVM_GETHEADER,0,0);

protected override void WndProc(ref Message m)
{
if (m.Msg==WM_NOTIFY )
{
NMHDR nm =(NMHDR) m.GetLParam(typeof(NMHDR));
if (nm.code==HDN_ITEMCHANGEDW)
{
int right=0;
int left=0;
TOOLINFO ti=new TOOLINFO();
ti.cbSize=Marshal.SizeOf(ti);
ti.uFlags=TTF_SUBCLASS;
ti.hWnd=headerHandle;
for (int i=0; i<this.Columns.Count; i++)
{
if (i<this.Columns.Count)
right+=this.Columns.Width;
else
right=this.Width;
ti.uID=i;
if (i<this.Columns.Count)
ti.pszText=this.Columns.Text;
else
ti.pszText="";
Rectangle rect= new System.Drawing.Rectangle(left,0,right,20);
ti.rect=rect;
// SendMessage(toolTipHandle, TTM_DELTOOLW, 0, ref ti);
SendMessage(toolTipHandle, TTM_ADDTOOLW, 0, ref ti);
left=right;
}
}
}
base.WndProc (ref m);
}

How do you initialize 'headerHandle' ?

cyrille