I want to be able to click and drag the mouse over the picturebox to create a selection area and I want it to snap an image to each place on the picturebox that it can. So if I have it set to snap to 50 pixels, and I select the points (50,50) - (100,100) I should get back 4 points: (50,50), (50,100), (100,50), and (100,100). The thing is though, It can't loop through every single location.
View 2 RepliesMy aim is to draw single pixels and rectangles on any web browser.
I ve been thinking alot about this and I think I that there might be 2 ways to do this:
1) Send message api maybe?
2) Direct 3d hook with C++ (Although this is quite complicated)
So my questions are:
Btw the use for it is to detect a certain pixel on the webbrowser and draw on it.
Don't ask why since it is quite complicated and I know also how to use Send message api and I once managed to program a direct 3d hook (but for a 3d game which was based on direct x SDK) with C++ although im not sure if it will work due to webbrowsers dont work with directx.
Im trying to plot the reading of 20 or more thermocouples in a single chart area.But it seems that the build in charting in vb.net can't handle that. My program just crashes when adding a series somwhere between the 14th or 18th series.Anyone know of any setting i can change or a better charting plugin?
View 2 RepliesI am trying to make a program that allows me to operate a program while I am not around (kind of like a bot) because I need to move alot of things and do the same motion over and over.
So in my program's settings I have made a form that is transparent that I want to set my working area with (i wont be resizing the form, it's size is "975, 575") and save the forms Top, Left, Bottom, Right positions so I can create a macro for my mouse to click.
how to save a forms position on the screen? So I can use it to set a working area?
I just want to save its current location to 4 variables
I have to create an image that is to mimic a single clock rotating hand within a square area,and the user has to choose the width and speed of the rotation and the direction.i managed to create the square area with a hand inside,with this codes and variables,
(Dim Mygraphics As graphics = e.graphics
mygrqaphics.Draw Rectangle(pens.color x1,x2,y1,y2)
mygraphics draw line(pens.color,x1,x2,y1,y2),now i have to find codes and variables to rotate the hand or line within a square area.one point remaining constant the other moving.
I have a very large number of tables with data in the following format:
A X Y Z
1 0-2 0-13 0-1
2 3-5 14 2-4
3 6-9 15-16 5-10
In other words, there is a variable (call it A) with a single value that corresponds to a range of values in the other variables (call them X, Y, and Z).My program needs to accept user text input of values of X, Y, Z, etc. and then match each to the corresponding value of A.Example: User enters 4 in the X text box; program determines that if X=4, A=2.Again, we're talking about tables and tables of data in this format. Unaware of a better method, I have been using arrays.
Example:
Dim a() as double = {1,1,1,2,2,2,3,3,3,3...}
Dim x() as double = {0,1,2,3,4,5,6,7,8,9,10...}
Note how I had to artificially deal with variable A so that the index of each score corresponds to the index of the matching X variable.It is this modification of the variables that is taking forever. There has to be a better way! Hypothetically, what I need is the ability to do something like this:
Dim a() as double = {1,2,3,4...}
dim x() as double = {0 to 2, 3 to 5, 6 to 9...}
Is there a way to represent a range of values at a single index of an array, such as my hypothetical example above? This would save me hours of re-shaping the data to make the arrays work.
I have two rectangles; a character and a block. The character is suppose to jump onto the block and then either jump off it or walk off it. I am really getting frustrated with this because I cannot get it to work.
View 9 RepliesI don't really know how to explain this except that I want to draw a bunch of rectangles in a LOOP, then I want each rectangle to be put into an array. To be more specific as alot of people keep telling me to be....I am making a robot, that can move left or right from below the screen, the robot is a rectangle with a barrel in the middle of it. The robot can shoot bullets, but as I understand I have to draw the bullets from the code. So far I have the functions written down to get started and I have tried all the drawing methods, and none of them will do what I want.
vb.net
Public Class Form1
Robot Settings
[code].....
How do I get the position of the XML element in this loop?
For Each objNode In objDoc.SelectNodes("//books/book")Next
What I want in output would be something like
i have a for loop "for each val in values" I want to within this loop some how check positions ahead of the current position for a condition. I am unsure how i can do this however apart from having an inner for loop to loop from the current position. If that is the case I am not sure how i can get the current position.I have attempted this with this code below, the inner for loop.
If creditPoints = "10" Then
Dim valcount As Integer = Val.Count
For intLoopIndex = valcount To Values.Cou
[code].....
I am using the following code to populate data in Textbox1:
[Code]...
I have few functions assigned in TextBox1_TextChanged event. The problem i am facing is this event is fired twice, once after the Fill command and another after the Position command whereas i want the event to fire only once after the Position command. What should i do?
For loop CPU 25% single core
View 6 RepliesI am trying to use the DGV to view various properties from a variety of different class instances. Is it possible to bind each cell individually?
View 9 RepliesI'm trying to use the timer (not a Timer object) in a Do... Until loop. I want the loop to put a single variable into a label. When I do this it works and puts the value into the label (lblOxygenReading):
If btnGetOxygen.Text = "Get Oxygen Reading" Then
Select Case True
Case rdoColorWhite.Checked
strCurrentColor = "White"
Case rdoColorRed.Checked
[Code] .....
It goes through the Do loop and the For.. next loop but doesn't change the label. Visual Studio doesn't show any errors when I'm writing the code, but when I run it, it hangs somewhere.
Operator '+' is not defined for types '1-dimensional array of Byte' and 'Byte'.How would I change the assignment statement in the code below so that each indexed byte position gets assigned the converted integer value in the for loop?
Dim byteArray As Byte()
Property Data_Out() As Integer()
Get[code].....
Trying to set the viewable area to a smaller screen area and have it cycle through as the person moves using collision detection to move the backgroudn image. Here is the start but its off to a bad start so far.
Public Class Form1
Dim Mapx As Integer = 600
Dim Mapy As Integer = 2000
[code]....
Basically the forum size is set to 600x2000 but the client should only allow you to view 600x600. I want it to add +1 once you "collide with a invisable box I'll add and this will redraw the screen.
I designed a form and managed to fit graphics inside it. Picture box is 465 pixels high. Form1 is 500 pixels high. SnapShot of the screen verifies that the 500 pixel height is the overal height. It includes the upper Bar and lower frame. Is there an instruction to set the From's inner pixel size and not overal?
View 2 Repliesi am trying to get a project that will magnify the area of the screen under my mouse... and be displayed in the applacations window! so far all i have been able to do is track the X, Y positions of my mouse... i have some experiance but not very much useing visual basic.
View 6 RepliesI'm making a project that has a bunch of different types of calculators in the same tab within a tab control. To organize these calculators, I put each one in a groupbox, there are about 5 or 6 in all. When I was finished designing all of them, I placed all the groupboxes in the spot they needed to be, but once I started creating the events for them to be visible or not visible there are a bunch that don't show up. I think it has to do with the fact that VB thinks that the groupbox is part of another groupbox that isn't visible so it doesn't show.
How can I go about only showing a single calculator at once in my tab?
I would like to select and copy in the clipboard a text chat row (the last row), so to save, row after row, the whole chat in a file To select the row is sufficent a single clik into a row, so that my idea was to simulate the mouse clik in the last row and then simulate the Control+C key press
Private Sub Timer_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer.Tick
mouse_event(MOUSEEVENTF_LEFTDOWN, Pos1, Pos2, 0, 0)where Pos1 e Pos2 are the coordinates of a whatever point the chat row BUT THIS WORK IS NOT GOOD the mouse cursor becomes unusable with the normal work, so that it is needed a different idea, that makes the job INDIPENDENT from any other work made at the PC in the same moment
now the question is: any idea as how to solve the problem?
I assigned an integer as 1, and looped my program using:[code]I can recieve the packets without looping, but once i loop, i receive nothing.
View 29 RepliesHow can I check if a ListView has items that are not in its visible area?
View 5 Repliesi have a textbox a button and a webbrowser What i need is when i hit the button whatever info is in the text box will be inserted into the webbrowser text area. Website that the webbrowser goes to[URL]..
<label>Just write or copy and paste your proxy IP addresses and ports to then click in <span>Check Proxy</span> button!<br><em>(one IP:Port per line)</em></label>
<textarea name="proxylist" class="textarea defaultTextActive" cols="22" rows="11">
Alright so i have a form with alot (ALOT) of controls...many tabs, many listviews, many comboboxes and textboxes, all of which have values which i saveload using a class i made for saving and loading these values from a file.
Loading these values is pretty slow after the form loads. Takes around 3 seconds (i had to create a splashscreen and made it look decent, but it's still not a nice thing to have)
Then today i decided to try something. I opened the designer to initialize component, and i called the LoaderSub (that loads the values for the controls from a file) within initialize component, in a location after all the properties are set but before all the .resumelayout and .performlayout are called. Lo' and behold the form loaded in less than half a second, with the values and all.
However, now everytime i make a change to the form in design view, or even add a handler to some control in code view, the designer redraws and the auto generated code takes out my code from initializecomponent.
I did the googling, and all the results i found for similar cases issues were cases where the person asking the question im going to ask, the answer is "Didn't you read the part that says DO NOT MODIFY?"
Still, as a last attempt, I ask here: is there any way to modify initializecomponent without losing my changes? I just need to call LoaderSub before the layout resumes...if i call it before initialize component, i get null reference exceptions. And if i call it right after initialize component, loading is very slow.
I have a picture box on a form that changes size as needed. Both by resizing the form and by code.How can I resize the form automatically if I resize the picturebox in code. The client area of the picture box should not be clipped.Right now the picture box is set to dock fill, but if the code resizes it, the form does not follow it. Is there a binding somewhere I can use?
View 2 RepliesI am trying to have different types of rectangles. I thought something like this would work, but Rectangle is not a class.
Public Class xRectangle
Inherits Rectangle
End Class
What I wanted this for was to remove a selection rectangle from an existing drawing. I have all of the objects to draw stored in a list and I am trying to remove the selection rectangle without removing the object it is covering.
I'm trying to make some autohide panels, which will show when mouse enters some area, and hide when mouse leaves the panel. This is however not so straight forward. I can handle MouseMove event for the form, to trigger "show" panel, and I can handle MouseEnter event for the form, to trigger "hide" when mouse leaves the panel. But this is not consistent, since sometimes mouse will leave the panel directly onto another control, and sometimes it will leave the panel directly "from" a control on the panel, and not from the panel itself.
Of course I could do the slow work and make logic for each control, but that is not very neat. Is it possible in some way to capture the mousemove event regardless of which control mouse is above?
how to flip rectangles in picturebox?
View 3 RepliesHow to flip rectangles in picturebox?
View 5 RepliesHow to know if two rectangles intersect. i know for polygon center, length, width and angle. i want to fast algorithm for visual basic 2008.
View 12 Replies