private void AddTool()
{
TOOLINFO tool = new TOOLINFO {
lpszText = CommCtrl.LPSTR_TEXTCALLBACK
};
tool = this.ExecuteTool(CommCtrl.TTM_ADDTOOL, ref tool);
}
private TOOLINFO ExecuteTool(int message, ref TOOLINFO Tool)
{
Tool.cbSize = Marshal.SizeOf((TOOLINFO) Tool);
Tool.uFlags = TTF.TTF_IDISHWND;
Tool.hwnd = base.Handle;
Tool.uId = base.Handle;
GCHandle handle = GCHandle.Alloc((TOOLINFO) Tool, GCHandleType.Pinned);
try
{
Windows.SendMessage(this.TooltipWnd, CommCtrl.TTM_ADDTOOL, IntPtr.Zero, handle.AddrOfPinnedObject());
}
finally
{
handle.Free();
}
return Tool;
}
private void DeleteTool()
{
TOOLINFO tool = new TOOLINFO();
tool = this.ExecuteTool(CommCtrl.TTM_DELTOOL, ref tool);
}
private void CreateTool()
{
//System.Diagnostics.Debug.Assert(
// m_parent.Handle!=IntPtr.Zero,
// "parent hwnd is null", "SetToolTip");
CreateParams cp = new CreateParams();
cp.ClassName = TOOLTIPS_CLASS;
cp.Style =
WS_POPUP |
TTS_NOPREFIX |
TTS_ALWAYSTIP |
TTS_CLOSE;
// create the tool
m_tool.CreateHandle(cp);
// create and fill in the tool tip info
ti = new TOOLINFO();
ti.cbSize = Marshal.SizeOf(ti);
ti.uFlags = TTF_TRACK |
TTF_IDISHWND |
TTF_TRANSPARENT |
TTF_SUBCLASS |
TTF_PARSELINKS;
// absolute is used tooltip maynot be shown
// if coords exceed the corners of the screen
//if(m_absPosn)
//{
// ti.uFlags |= //TTF_ABSOLUTE;
//}
if(m_centerStem)
{
ti.uFlags |= TTF_CENTERTIP;
}
ti.uId = m_tool.Handle;
ti.lpszText = m_text;
//ti.hwnd = m_parent.Handle;
//GetClientRect(m_parent.Handle, ref ti.rect);
//ClientToScreen(m_parent.Handle, ref ti.rect);
// make sure we make it the top level window
SetWindowPos(
m_tool.Handle,
HWND_TOPMOST,
0, 0, 0, 0,
SWP_NOACTIVATE |
SWP_NOMOVE |
SWP_NOSIZE);
//int scopeInitInfoSize = Marshal.SizeOf(typeof(DSOP_SCOPE_INIT_INFO));
//int offset = scopeInitInfoSize;
//IntPtr scopeInitInfo = (IntPtr)(refScopeInitInfo.ToInt64() + offset);
// add the tool tip
IntPtr ptrStruct = Marshal.AllocHGlobal(Marshal.SizeOf(ti));
Marshal.StructureToPtr(ti, ptrStruct, false);
SendMessage(
m_tool.Handle, TTM_ADDTOOL, 0, ptrStruct);
ti = (TOOLINFO)Marshal.PtrToStructure(ptrStruct,
typeof(TOOLINFO));
SendMessage(
m_tool.Handle, TTM_SETMAXTIPWIDTH,
0, new IntPtr(m_maxWidth));
//IntPtr ptrTitle = Marshal.StringToHGlobalAuto(m_title);
//SendMessage(
// m_tool.Handle, TTM_SETTITLE,
// (int)m_titleIcon, ptrTitle);
SetBalloonPosition(ti.rect);
Marshal.FreeHGlobal(ptrStruct);
//Marshal.FreeHGlobal(ptrTitle);
}
