I need to draw several line-graphics on a form, then select and drag individual graphics to new locations. Is it possible for example to give each graphic path an identity when drawn, then select any one (via mousedown, whatever) and link it to the dragged mouse co-ordinates until released? MS Visio has exactly this ability - can it be done in .NET?
View 4 Replies' Show game directions.[code]...
I think this is actually really easy to do that it isn't documented on here or msdn.
I need to drag and drop to textbox from tree view. Here while drag and drop to text box i need to add the dragged text to anywhere in the text box which we have already dragged some nodes here.
For example.in treeview i have "node1" and "node2"now i am going to add "node2" to textbox and in front of "node2" i need to add "node1" and then at the end of "node2" again i need to drop "node1" like that.
How to get the line number where the cursor is in a RichTextBox? I'm using VB 2010
View 2 RepliesI am using this code to draw a line on a form using textboxes as the x and y coordinates. I then click the button with the code below that will draw the line.
Before the new line is drawn, I would like to have previous lines deleted first.
How can I delete these lines?
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim canvas As New ShapeContainer
[Code].....
I am working with a very simple (so far..) little program where i use som trig to create a circle using pixels created vith the Ellipse-comand "(x, x, 1, 1)" etc.
But I want to se when the graphics is drawn, just not the finished circle, how do I do that?
I use the "Paint" version of the form. I am a beginner so excuse my poor skills. Shouldn´t this be a very simple little problem?
I work with Visual Basic 2008 Express
I am trying to use a windows form as a custom contextmenu which is fine as I have done a form with translucent background colour. However the problem is that I am having problems displaying the form at my cursor position. I have a mdi chaild form in my app and when I right click I want to display my custom contextmenu form at the point where I right click in the mdichild form. The only other thing is that I want the middle of the form to be displayed at the cursor point.
View 2 RepliesI am trying to use a windows form as a custom contextmenu which is fine as I have done a form with translucent background colour. However the problem is that I am having problems displaying the form at my cursor position. I have a mdi chaild form in my app and when I right click I want to display my custom contextmenu form at the point where I right click in the mdichild form. The only other thing is that I want the middle of the form to be displayed at the cursor point.
View 1 RepliesI am working on a screen cropping program. The program works by expanding the current for to maximum and the opacity level set to 35% so the screencan be seen from behind. The cropping code is below:
Private Sub disect_mouseDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Me.MouseDown
Me.Opacity = 0
[code]....
I set the form's size with Me.Size = New System.Drawing.Size(500, 500). I display the mouse cursor's position when the event Form1_MouseMove fires. At the bottom right corner of the form, I read the coordinates 483,460 (instead of 500,500) I precise that the upper left corner has the coordinates 0,0.I also notice that the size of a control differs from the form's size. for example if Picbox1.height = Form1.height, then the Picbox will be bigger than the displayed Form1.
View 4 Replies1) Draw three letter's 'P' 'B' & 'C' on a form (at a later date mutiples of each wil be added)
2) to be able to drag them anywhere on the form
3) to be able to lassoo them and drag them all at the same time.
For the moment the third option isn't important just as long as l can drag the letters.
how to view and populate a listview with a text file. Now I come seeking wisdom on how do create an effect based upon the location where a mousedown event occured.
Here is my example. (I like to give simple examples because it helps me learn rather than be given the answer and learn nothing).
I am working in vb.net, in a windows form. I have a map of Western Europe called picturebox1.
I want another form to pop up when a user clicks on a section of picturebox1. For example: I want a "Germany" form to pop up when the user clicks on Germany. And such for if France, Spain, Italy, Austria, England, Scotland, etc...based on the location of the mousedown event.
Historically, when working with a picturebox with sections that were rectangle, I would do little screenshots and overlay them over the picturebox and use that as a cheat.
The challenge here is that the countries are polygons and now I need to learn this for real. I am looking for a little direction on where to go to learn about a mousedown event that causes an effect based upon the location of the mousedown event.
This can be a challenge because each country is of different x, y location coordinates so I image I need to create an elaborate if or case statement to capture and evalute. However, I don't know how to acquire the coordinates of a mousedown.
I want to draw lines (paths) for AI to follow. I need to know the X,Y coordinates of each pixel in the line.Lines drawn straight vertical (0 or 180 Degs), diagonal (45 or 225 Degs), or horizontal (90 or 270 Degs) are easy to map.I need to know how to map straight lines that are not one of the those three. Like 1 degree to 44 degrees, 46 degrees to 89 degrees, and so on...
View 1 RepliesI'm creating a type of drawing program. The user can draw a line, much like in word or paint, etc. But once the line is drawn (to a picturebox or bitmap in memory), I want the user to be able to click on the line and drag it around (translate it).
If I know the coordinates of the endpoints of the line, as well as the pen width it was drawn with, how can I tell if a certain coordinate (mouse location) is contained by the line?
My first thought was to take a mathematical approach, like get an equation for a line, and check to see if the coordinate belonged to it. But for a higher pen width, the line is thicker, and thus contains more points.
How can I tell what coordinates are part of the line? Is there some sort of intersect function in the gdi that takes a line?
Currently I have not found a way to generate an event when a user clicks on a line that is drawn in my workspace area. The line that is drawn is created by calling the function e.Graphics.Drawline(Connector,X1,Y1,X2,Y2), where Connector is a System.Drawing.Pen object and X1,Y1,X2,Y2 are integer coordinates of the two points to draw the line between. I have not found any events such as Click that are associated with the line that I can use. Do I need to create a custom event for these lines if so how do I go about this?
View 5 RepliesI have drawn (3) lines on a panel, each a diff color. I want user to muse click on a given line to bring up a label that will explane what the line is telling the user. There s/b no bit maps involved. I am using graphics to draw the panels and lines.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
[code]....
My code above will draw the line but i can not see how to use path to get a "hit" on mouse move for the line?I use private routines to draw many panels and assign pens to colors and panels. I must be able to connect panel and line ID to pen name to know the nature of the line to label it! I can see that path must be used; but how?
I have a panel on an MDI form which is scrollable by the user with scroll bars. I would like to know if there is any way this could be modified so that the user could drag the panel with the cursor? If so, can you supply the correct event and code?
View 5 Repliesi have a simple application where a user can drag "text" from a tree view to another application.is there a way to customize the cursor during the drag... i would llike to have a custom image or something that simulates what the user is really dragging [code]
View 2 RepliesPrivate Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
TextBox1.Clear()
TextBox2.Clear()
End Sub
How do I make the cursor appear in textbox1 after clicking the button?
Does anyone know how to create a custom start and end cap for a line drawn with System.Drawing.Pen? I wanted to use a custom start and end cap that I have from an image that I created that contains two arrows pointing in the same direction one after the other.[code]...
View 1 RepliesI'm trying to find a drag and drop cursor for use in a program. It is not in the standard Windows cursors. It's the one you see when moving a control in Visual Studio or when reordering slides in powerpoint - arrow with rectangle below.
View 5 RepliesIn a application i'm working on i need to be able to select a graphic (a line to be specific) and then i need to change or move it but i cant find how to add a click event to the line when a draw it. Basicly i want to click on the line to select it (make it fatter or an other color) and then be able to alter it in position and size (lenght). Is there any way or what is the correct way to do this?
View 6 RepliesI'm trying to get the cursor position within a webbrowser control, and then create a text range starting from the cursor to a specified word or character.I have some code but instead of selecting the specified range it selects the whole html block.
[Code]...
Private Sub pSalar_MouseDown(ByVal sender As Object, ByVal e As MouseEventArgs) Handles pSalar.MouseDown My problem is that this panel is the parent of labels, and when I click somewhere on the panel, I can't get it to trigger the event. If I remove the line below, it works ok (but then obviously it's not holding any children labels anymore)[code]....
View 1 RepliesIn my application which is written on vb.net,i search for a word by typing the same in textbox here i have doubt to focus the cursor in the text box.. if i press first letter, say 'a', in textbox that will automatically search what are the words start with 'a'but after searching, cursor is not focussed in the textbox and to type another letter, say 'b', i need to bring my mouse pointer over the textbox and click so that i can type another letter.how can i keep my cursor focussed in the textbox unless i click somewhere else.
View 5 RepliesI My Problems is when i don't put number and the textbox is empty TextBox string value but the cursor is integer i tryed whith if not string.isnullorempty but have an invalidcastexception in SetCursorPos(MousePositionX, MousePositionY) and if i put all as string happens the same whit the infinite value (empty textbox)
Public Class Form1
Private Declare Sub SetCursorPos Lib "User32" (ByVal X As Integer, ByVal Y As Integer)
Private Const MOUSEEVENTF_LEFTDOWN = &H2
[Code]....
Trying to set the cursor position in a RichTextBox. The contents of a document are opened into the RichTextBox and I would like the cursor to move to the very start of the text.
At the moment, I'm using:
Me.tbLowerBody.SelectionStart = 0
Me.tbLowerBody.SelectionLength = 0
However, this seems to provoke my "Would you like to save changes" dialog on closing the RTB even though no actual changes have been made.
I'm making some snippets and I want to position the cursor. I've come acros "$end$" but all examples I see are in c#. Since recently I've started programming in vb.net again and it seems $end$ isn't recognized or doesn't work here. Is there another keyword in vb to do the same?
View 2 Repliesthe program is that user add numbers in textbox through number buttons (its a calculatornow i have to add 2 more buttons. one <- and other -> and when press one of them the cursor moves in the text box left and right.i tried few things but none works. i have tired to insert "|" first and then try to move it but it either keep on adding or deleting the text.here is what i have tried so far . its not the whole code as i keep on adding and removing.
Dim str As String
Dim loc As Integer
If txtInput.Text.Length > 0 Then
[code]......
I'm trying to set a new cursor position but I get this error:
A call to PInvoke function 'mon! WindowsApplication1.Form1::SetCursorPos' has unbalanced the stack. This is likely because the managed PInvoke signature does not match the unmanaged target signature. Check that the calling convention and parameters of the PInvoke signature match the target unmanaged signature.
Here is the code:
Declare Function SetCursorPos Lib "user32" _
(ByVal x As Long, ByVal y As Long) As Long
SetCursorPos(457, 603)
It used to work when I used VS 08 but now I use VS 10 and this problem has started to appear.