private void Control_Resize(object sender, EventArgs e)
{
Control caller = (Control)sender;
this.tf.parent = caller.Handle;
this.tempptr = Marshal.AllocHGlobal(this.tf.size);
Marshal.StructureToPtr(this.tf, this.tempptr, false);
SendMessage(this.toolwindow, TTM_GETTOOLINFO, 0, this.tempptr);
this.tf = (toolinfo)Marshal.PtrToStructure(this.tempptr, typeof(toolinfo));
this.tf.rect = caller.ClientRectangle;
Marshal.StructureToPtr(this.tf, this.tempptr, false);
SendMessage(this.toolwindow, TTM_SETTOOLINFO, 0, this.tempptr);
Marshal.FreeHGlobal(this.tempptr);
}
public BalloonToolTip()
{
// Private members initial values.
this.max = 200;
this.autopop = 5000;
this.initial = 500;
this.title = string.Empty;
this.bgcolor = Color.FromKnownColor(KnownColor.Info);
this.fgcolor = Color.FromKnownColor(KnownColor.InfoText);
this.tooltexts = new Hashtable();
this.enabled = true;
this.icon = BalloonIcons.None;
// Creating the tooltip control.
this.toolwindow = CreateWindowEx(0, "tooltips_class32", string.Empty,
WS_POPUP | TTS_NOPREFIX | TTS_ALWAYSTIP, CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT, IntPtr.Zero, 0, 0, 0);
SetWindowPos(this.toolwindow, this.TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
SendMessage(this.toolwindow, TTM_SETMAXTIPWIDTH, 0, new IntPtr(this.max));
// Creating the toolinfo structure to be used later.
this.tf = new toolinfo();
this.tf.flag = TTF_SUBCLASS | TTF_TRANSPARENT;
this.tf.size = Marshal.SizeOf(typeof (toolinfo));
}
public BalloonToolTip()
{
// Private members initial values.
this.max = 200;
this.autopop = 5000;
this.initial = 500;
this.title = string.Empty;
this.bgcolor = Color.FromKnownColor(KnownColor.Info);
this.fgcolor = Color.FromKnownColor(KnownColor.InfoText);
this.tooltexts = new Hashtable();
this.enabled = true;
this.icon = BalloonIcons.None;
// Creating the tooltip control.
this.toolwindow = CreateWindowEx(0, "tooltips_class32", string.Empty,
WS_POPUP | TTS_NOPREFIX | TTS_ALWAYSTIP, CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT, IntPtr.Zero, 0, 0, 0);
SetWindowPos(this.toolwindow, this.TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
SendMessage(this.toolwindow, TTM_SETMAXTIPWIDTH, 0, new IntPtr(this.max));
// Creating the toolinfo structure to be used later.
this.tf = new toolinfo();
this.tf.flag = TTF_SUBCLASS | TTF_TRANSPARENT;
this.tf.size = Marshal.SizeOf(typeof(toolinfo));
}
private void Control_Resize(object sender, EventArgs e)
{
Control caller = (Control) sender;
this.tf.parent = caller.Handle;
this.tempptr = Marshal.AllocHGlobal(this.tf.size);
Marshal.StructureToPtr(this.tf, this.tempptr, false);
SendMessage(this.toolwindow, TTM_GETTOOLINFO, 0, this.tempptr);
this.tf = (toolinfo) Marshal.PtrToStructure(this.tempptr, typeof (toolinfo));
this.tf.rect = caller.ClientRectangle;
Marshal.StructureToPtr(this.tf, this.tempptr, false);
SendMessage(this.toolwindow, TTM_SETTOOLINFO, 0, this.tempptr);
Marshal.FreeHGlobal(this.tempptr);
}
public BalloonToolTip()
{
// Private members initial values.
max = 2000;
autopop = 5000;
initial = 500;
title = string.Empty;
bgcolor = Color.FromKnownColor(KnownColor.Info);
fgcolor = Color.FromKnownColor(KnownColor.InfoText);
tooltexts = new System.Collections.Hashtable();
enabled = false;
icon = BalloonIcons.None;
// Creating the tooltip control.
toolwindow = CreateWindowEx(0, "tooltips_class32", string.Empty, WS_POPUP | TTS_NOPREFIX | TTS_ALWAYSTIP | TTS_BALLOON, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, IntPtr.Zero, 0, 0, 0);
SetWindowPos(toolwindow, TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
SendMessage(toolwindow, TTM_SETMAXTIPWIDTH, 0, new IntPtr(max));
// Creating the toolinfo structure to be used later.
tf = new toolinfo();
tf.flag = TTF_TRACK | TTF_SUBCLASS | TTF_TRANSPARENT | TTF_ABSOLUTE;
tf.id = toolwindow;
tf.size = Marshal.SizeOf(tf);
}
/// <summary>
/// Hides the balloon tooltip
/// </summary>
/// <param name="sender">The sender.</param>
public void Hide(Control sender)
{
tf.parent = ((Control)sender).Handle;
tempptr = Marshal.AllocHGlobal(tf.size);
Marshal.StructureToPtr(tf, tempptr, false);
SendMessage(toolwindow, TTM_GETTOOLINFO, 0, tempptr);
tf = (toolinfo)Marshal.PtrToStructure(tempptr, typeof(toolinfo));
tf.flag = TTF_IDISHWND | TTF_ABSOLUTE | TTF_TRACK;
//tf.size = Marshal.SizeOf(typeof(toolinfo));
Marshal.StructureToPtr(tf, tempptr, false);
SendMessage(toolwindow, TTM_SETTOOLINFO, 0, tempptr);
SendMessage(toolwindow, TTM_TRACKPOSITION, 0, IntPtr.Zero);
SendMessage(toolwindow, TTM_TRACKACTIVATE, 0, tempptr);
Marshal.FreeHGlobal(tempptr);
}
/// <summary>
/// show the balloon tooltip,
/// to make it visible without the user have to hover over the control
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="location">The location.</param>
public void Show(Control sender, Point location)
{
tf.parent = ((Control)sender).Handle;
tempptr = Marshal.AllocHGlobal(tf.size);
Marshal.StructureToPtr(tf, tempptr, false);
SendMessage(toolwindow, TTM_GETTOOLINFO, 0, tempptr);
tf = (toolinfo)Marshal.PtrToStructure(tempptr, typeof(toolinfo));
tf.flag = TTF_IDISHWND | TTF_ABSOLUTE | TTF_TRACK;
//tf.size = Marshal.SizeOf(typeof(toolinfo));
//tf.text="test";
Marshal.StructureToPtr(tf, tempptr, false);
SendMessage(toolwindow, TTM_SETTOOLINFO, 0, tempptr);
SendMessage(toolwindow, TTM_TRACKPOSITION, 0, (IntPtr)MAKELONG(location.X, location.Y));
SendMessage(toolwindow, TTM_TRACKACTIVATE, 1, tempptr);
Marshal.FreeHGlobal(tempptr);
}
