Hello I have a windows form. I want to show a popup at the position of mouse but when I get the mouse position with mouseposition property,it doesnt show right below the cursor.
When I click the cell the popup should appear right below the cursor instead it shows at random places
I have a code like this:
Point p = new Point();
p = MousePosition;
if (e.Column.Name=="colnot_detay")
{
labelControl1.Text=gridView1.GetRowCellValue(gridView1.FocusedRowHandle,"not_detay").ToString();
popupContainerControl2.Location = p;
popupContainerControl2.Show();
}
I've started using LightningChart in my real time monitoring application. In my app there are many y axis which use segmented layout (one y axis per segment):
mainChart.ViewXY.AxisLayout.YAxesLayout = YAxesLayout.Segmented;
My goal is that when you mouse click a segment, it gets larger compared to other segments (kinda like zoom effect) and the other segments gets smaller. When you click it again it goes back to normal.
I know I can change the size of the segments with:
mainChart.ViewXY.AxisLayout.Segments[segmentNumber].Height = someValue;
That takes care of the zooming effect.
Now the problem is that how can I solve which segment was actually clicked? I figured out that you get mouse position via MouseClick -event (e.MousePos) but that seem to give only the screen coordinates so i'm not sure that it helps.
I'm using the LightningChart version 8.4.2
You are correct that getting mouse position via MouseClick event is the key here. The screen coordinates you get via e.GetPosition (not e.MousePos) can be converted to chart axis values with CoordToValue() -method. Then you just compare the y-coordinate to each y-axis minimum/maximum value to find out what segment was clicked. Here is an example:
_chart.MouseClick += _chart_MouseClick;
private void _chart_MouseClick(object sender, MouseButtonEventArgs e)
{
var mousePos = e.GetPosition(_chart).Y;
double axisPos = 0;
bool isWithinYRange = false;
foreach (AxisY ay in _chart.ViewXY.YAxes)
{
ay.CoordToValue((float)mousePos, out axisPos, true);
if (axisPos >= ay.Minimum && axisPos <= ay.Maximum)
{
// Segment clicked, get the index via ay.SegmentIndex;
isWithinYRange = true;
}
}
if (!isWithinYRange)
{
// Not in any segment
}
}
After finding out the segment index, you can modify its height as you described:
_chart.ViewXY.AxisLayout.Segments[0].Height = 1.5;
Note Height means segment height compared to other segments.
Hope this is helpful.
I wrote a little Program that should display a Ellipse at the exact mouse position. The Problem is that, the way Iam doing it right now , The Mouse and Ellipse Position are only exact at the center of the Screen. If I put the mouse further away to the windowborder they drift further and further away.
I use the MouseOver Element to Update the Mouse Position.
Here is my code:
private void Window_MouseMove(object sender, MouseEventArgs e)
{
Main_Grid.Children.Clear();
MousePos_Ellipse = new Ellipse();
Point MousePos_Point = new Point();
MousePos_Point = Mouse.GetPosition(Main_Grid);
Main_Grid.Children.Remove(MousePos_Ellipse);
SolidColorBrush mySolidColorBrush = new SolidColorBrush();
mySolidColorBrush.Color = Color.FromArgb(55, 255, 255, 0);
MousePos_Ellipse.Fill = mySolidColorBrush;
MousePos_Ellipse.StrokeThickness = 2;
MousePos_Ellipse.Stroke = Brushes.Black;
// Set the width and height of the Ellipse.
MousePos_Ellipse.Width = 15;
MousePos_Ellipse.Height = 15;
// At this Point I do my Positioning
MousePos_Ellipse.Margin = new Thickness(left: MousePos_Point.X - ( Main_Grid.ActualWidth / 2) , top: MousePos_Point.Y - ( Main_Grid.ActualHeight / 2 ), right: 0 , bottom: 0);
//base.AddVisualChild(_circle);
// Add the Ellipse to the Grid
Main_Grid.Children.Add(MousePos_Ellipse);
}
I propose to use a Canvas instead of a grid.
With a canvas you can simply set the ellipse position like that:
Canvas.SetLeft(MousePos_Ellipse, MousePos_Point.X);
Canvas.SetTop(MousePos_Ellipse, MousePos_Point.Y);
The Grid control will do automatic positioning and sizing of child elements and is therefore not so suitable for your goal.
Disclaimer; while the answers above will fix your issue, the actual question is not properly resolved. The problem you are facing derives from your interpretation of the issue compared to how the computer sees it.
The position of your cursor relative to the grid is not the same as the position relative to your screen (i.e. different resolutions return different values). This is why our x and y values will be further off the further you get off center. You could fix this by defining that you want your X and Y position relative to the form, f.ex, like so:
var relativePoint = this.PointToClient(Cursor.Position);
The noticable difference here is that here, we Point to the client, and therefore get the Cursor's relative position within the form.
I want to find the X/Y pixel coordinates of the current mouse cursor position in a Winforms RichTextBox in C#. How do I go about this?
This should work:
Point p = new Point(Cursor.Position.X, Cursor.Position.Y);
int mx = richTextBox1.PointToClient(p).X;
int my = richTextBox1.PointToClient(p).Y;
I have this Windows Forms application with a simple balloon tooltip. Depending on the application's window location on the desktop and the mouse cursor location, the balloon 'tip' (or balloon pointing arrow) may or may not be pointing to the location I want.
For instance, my app snaps to the desktop sides and when it's snapped to the right side, if the mouse cursor is below 100px of the right side, the balloon 'tip' will point to the wrong place. But if the mouse cursor is anywhere else, it will point to the right place.
In this situation I wanted to fake the mouse cursor position (without actually changing the mouse cursor position) to be somewhere else so the the problem wouldn't occur.
Is this possible? How can I achieve this?
private void noteTitleInput_KeyPress(object sender, KeyPressEventArgs e) {
if(e.KeyChar == Convert.ToChar(Keys.Return, CultureInfo.InvariantCulture) && noteTitleInput.Text.Length > 0) {
e.Handled = true;
noteInputButton_Click(null, null);
} else if(!Char.IsControl(e.KeyChar)) {
if(Array.IndexOf(Path.GetInvalidFileNameChars(), e.KeyChar) > -1) {
e.Handled = true;
System.Media.SystemSounds.Beep.Play();
noteTitleToolTip.Show("The following characters are not valid:\n\\ / : * ? < > |",
groupNoteInput, 25, -75, 2500);
return;
}
}
noteTitleToolTip.Hide(groupNoteInput);
}
I'm not quite sure why do you need to set cursor position, because you can set tool tip to appear where you tell it, and not necessarily where the mouse is.
For example:
tooltip1.Show("My tip", controlOnWhichToShow, 15, 15);
would display the tip at upper left corner of the controlOnWhichToShow, 15 points away from edges.
If I misunderstood you, than please specify at which point in time is the mouse position being used.
If you sync the MouseHover event, you can create the Tooltip as veljkoz describes. In this way you can place the tooltip as you like. The code would look smething like this:
protected override void OnMouseHover(EventArgs e)
{
ToolTip myToolTip = new ToolTip();
myToolTip.IsBalloon = true;
// TODO The x and y coordinates should be what ever you wish.
myToolTip.Show("Helpful Text Also", this, 50, 50);
base.OnMouseHover(e);
}
Hope that helps.
In Windows Forms the mouse is captured by the control when the user presses a mouse button on a control, and the mouse is released by the control when the user releases the mouse button.
The Capture property of the Control class specifies whether a control has captured the mouse. To determine when a control loses mouse capture, handle the MouseCaptureChanged event.
Only the foreground window can capture the mouse. When a background window attempts to capture the mouse, the window receives messages only for mouse events that occur when the mouse pointer is within the visible portion of the window. Also, even if the foreground window has captured the mouse, the user can still click another window, bringing it to the foreground. When the mouse is captured, shortcut keys do not work.
More here. Mouse Capture in Windows Forms
You can do what you say with a Class. You can do it in a very simple way.
one create class and
namespace MousLokasyonbulma
{
class benimtooltip : ToolTip
{
[System.Runtime.InteropServices.DllImport("User32.dll")]
static extern bool MoveWindow(IntPtr h, int x, int y, int width, int height, bool redraw);
public benimtooltip()
{
this.OwnerDraw = true;
this.Draw += Benimtooltip_Draw;
}
private void Benimtooltip_Draw(object sender, DrawToolTipEventArgs e)
{
e.DrawBackground();
e.DrawBorder();
e.DrawText();
var t = (ToolTip)sender;
var h = t.GetType().GetProperty("Handle",
System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
var handle = (IntPtr)h.GetValue(t);
var location = new Point(650, 650);
var ss= MoveWindow(handle, location.X, location.Y, e.Bounds.Width, e.Bounds.Height, false);
}
}
}
full Code MyGithup
Example Project image
https://i.hizliresim.com/1pndZG.png
https://i.hizliresim.com/Lvo3Rb.png