Checking If A Mouse Was Clicked In A Specific Area?

Aug 26, 2009

how do i check if a mouse was clicked in a specific coordinate plane on the form"?

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.net - MDI Child Form Does Not Activate When Clicked In Client Area?

Jul 29, 2010

My VB.NET app supports several kinds of MDI child forms. Some kinds, but not others, are 'troublesome' -- they cause the focus mechanism to become weird. Once a 'troublesome' child form has been opened, NONE of the MDI child forms will become activated unless I click on either the title bar or the border. Clicking in the client area does not activate the child form -- its title bar remains gray, and it does not receive Activate or GotFocus events. Strangely, however, the clicked-on form actually DOES receive the focus, because its controls receive mouse and key events. Only the Z-Order and the highlighting do not change.

Once this problem develops, it persists even after the 'troublesome' form is closed, and it affects child forms which are opened afterward. However, if ALL of the child forms are closed, the problem clears up, and new child forms behave normally -- until the next 'troublesome' form appears.

I have no idea why one kind of child form is troublesome, and others are not.

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MDI Child Form Does Not Activate When Clicked In Client Area?

May 8, 2010

My VB.NET app supports several kinds of MDI child forms. Some kinds, but not others, are 'troublesome' -- they cause the focus mechanism to become weird. Once a 'troublesome' child form has been opened, NONE of the MDI child forms will become activated unless I click on either the title bar or the border. Clicking in the client area does not activate the child form -- its title bar remains gray, and it does not receive Activate or GotFocus events. Strangely, however, the clicked-on form actually DOES receive the focus, because its controls receive mouse and key events. Only the Z-Order and the highlighting do not change.Once this problem develops, it persists even after the 'troublesome' form is closed, and it affects child forms which are opened afterward

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Move A Control With The Mouse By Clicking In A Certain Area?

Nov 10, 2011

I am trying to make a user control that can me moved around the form with the mouse.The control will look similar to this ...This is an example of my code for moving the control around.

Private Sub JobBox_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles JobBox.MouseDown
x = e.X

[code].....

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VS 2008 - Magnify The Area Of The Screen Under Mouse

Jan 27, 2010

i 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.

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Show Some Label When Mouse Pointer Passing At Some Area

Apr 6, 2009

i'm writing an application that using a picture-box (raster image, like a map).I want to show some label when my mouse pointer passing at some area.

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Print A Specific Area Of Form?

May 28, 2011

I am creating an application . in which clients have to enter data and view it and search it by application number and name.i want to add print form in search form in which client when search data of entered users he/she may print that form.i seen some plugins like print form, or print document , but it prints exaclt the form image etc.i donot know how to use them completely. so i wants to ask how can i print that specific area of search form ... the printed form should not be same like in the form. how can i set that this textbox data should be of this size or that lbl or picture should of of that size?

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Selecting A Specific Area Of A WebPage?

Oct 24, 2010

I was wonder how, if you can, can I create a WebBrowser control or something similar to this, that will contain a selected area of information, and that information only. So it doesn't load and show the whole web page, only the part I choose.

For example, I would only want to show the weather portion of this webpage: [URL]

How can I get a specific area of a webpage, loaded into a form, that is able to be reloaded/refreshed later on?

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VS 2008 - Autohide Panel Which Will Show When Mouse Enters Some Area

Oct 9, 2010

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?

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Capturing Which Mouse Button Is Clicked On A NotifyIcon?

Dec 20, 2009

I have a NotifyIcon (named TrayIcon). When I right-click it I get a menu. When I left-click it I want the form to be shown when it's minimized or hidden. But I can't find a way to get the latter done.

Private Sub TrayIcon_MouseClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles TrayIcon.MouseClick
If e.Equals(MouseButtons.Left) Then
Me.Show()
End If
End Sub

When I debug, "e" shows "almost" same value ({X = 0 Y = 0 Button = Left{1048576}}) as"MouseButtons.Left" (Left{104875}) in the quick-watch window, still the Me.show is passed. I think this has to do with the X and Y, and "MouseButtos.Left" is of the type "System.Windows.Forms.MouseButtons" and "e" is of the type "System.EventArgs", but I have no idea how to get the right comparison.It's partially working though. When I leave out the if statement and only the Me.Show() is left, both right and left-click make the form pop-up. With the if statement, it never shows up.

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VS 2010 Recognize When Mouse Is Clicked Globally

Jun 27, 2010

Ok i got the mouse to click, now i need to get like a IF statement for the left and right mouse click, e.g IF Rightmouseclick then do whatever and i need a leftmouse click one aswell, i found this on another thread but it doesn't work??

[Code]...

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VS 2008 : Create A Specific Area To Drag Form (ie: Image, Label)?

Sep 13, 2009

how to create a specific area to drag my form (ie: image, label). I found some code that works, however you can click anywhere and have it drag...

Const WM_NCHITTEST As Integer = &H84
Const HTCLIENT As Integer = &H1
Const HTCAPTION As Integer = &H2

[code]....

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C# - Determine Which Mouse Was Clicked (multiple Mice Devices) In .NET

Mar 20, 2010

I want to detect when my touchpad is clicked! I normally use a usb mouse, so I don't use the touchpad for anything. Instead I'd like to make it possible to perform an action in .NET, when the touchpad is clicked. This way I can use it as a shortcut: One tap and something cool happens.

Is this possible, and if yes, any clue how? I'd prefer if it could be working in VB.NET or C#. My theory is that I'd have to make a mousehook, which then somehow determines which device the click is coming from. If the click is determined to be from the touchpad, then cancel the click and doWhatever().

[Code]...

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How To Detect If Left Mouse Button Has Been Clicked In RichTextBox1

Sep 16, 2010

I am trying to move texts in a richtextbox from 1 place to another and I want to use a Move button.[code]

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Interface And Graphics :: Check Which Mouse Button Clicked?

Mar 18, 2011

I can tell when the user clicks on my picturebox. Can I tell which mouse button was used? Left or right?

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Check What Specific Part Of A PictureBox Was Clicked?

Sep 24, 2011

Let's say I have a PictureBox with an image of a house, for example, and I want to know if the user clicked on the roof, the door, the window, or the walls.

Is there some way to, maybe, set up an If statement so that it checks what the coordinates of the mouse click was and compares it to a set of pre-determined graphed points to decide what object was clicked?[code]....

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Reset A Progressbar To Zero After A Specific Button Is Clicked?

Nov 10, 2010

how do you reset a progressbar to beginning after a specific button is clicked?

[Code]...

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.net - Checking If A Specific Files Is Currently Open?

Jun 15, 2012

I was wondering if it was possible to check if the file "test.txt" is open? and if so then display a message that the file is in use? My biggest problem is that the file can be opened in notepad, word, excel etc. I have some basic coding, which checks if the file is open - what I am trying to do is check if the file is currently open and if its not in use then proceed with the coding, I have the following coding so far.

Dim Process() As Process = System.Diagnostics.Process.GetProcessesByName("notepad")
Dim Process2() As Process = System.Diagnostics.Process.GetProcessesByName("word")
For Each p As Process In Process

[Code].....

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Checking A Specific Column In The Database

Oct 11, 2011

here's the scenario. There's 2 types of employees; Worker and Manager. The worker will have to access the page 'worker.aspx' and the Manager will have to access the page 'manager.aspx'. In my login database (Access 2007) I have the first name, last name, username, password and job title of both workers and managers. Ex:

[Code]...

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Checking For Null Value In Specific Column

Mar 15, 2012

I'm working with a database application and i want to check if there is a null value in a specific column but it works only when its not null but if its null it throws an exception automatically. I tried to change the null value property of this column but I'm not able it shows a message that its not a valid property. I tried to change the source code in the code editor but it changes back automatically. Is there a way that I can work around this?

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Visual Studio 2010 - Find The Coordinates Of The Pointer (mouse) When It Is Clicked On The Form

Jan 27, 2010

I have a vb.net application, and I want to know how to find the coordinates of the pointer (mouse) when it is clicked on the form. Not much else to say, so I'll leave it like that.

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For Loops - Determine Which Students Have A Specific Major Based Upon The Button That Is Clicked?

Dec 15, 2011

I need to determine which students have a specific major based upon the button that is clicked , then code will pull all the CS student's name and put them in the results list box. The text box above the results list box should contain the specified major and the text box below the results list box should contain a message indicating the total number of students with specific major.

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VS 2010 - Program Checking The Colour At A Specific Coordinate - Switch Between Windows ?

Apr 16, 2011

Basically what I want to do is create a program that every now and then (maybe 10 minutes) switches between either, all the windows currently open, or a selection of all the windows currently open, then checks the colour of a location on the screen. At the moment I have the program checking the colour at a specific coordinate, so that's all good. The problem I have now is how to switch between windows.

I've thought up a few ways to do this. The windows that I care about checking all have the same name, the same process class, but different process IDs. I already managed to stick all the process IDs into an array of integers hoping that I could use them but I don't have a clue how to bring a window to front using just the process ID. So the first method would work if I could figure out a way to do that.

My second idea, which is a pretty rubbish way of doing it, would be to simply simulate pressing Alt+Tab however many times to change between windows.

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Mouse Movement In Specific Window?

Jun 15, 2010

if its possible to have mouse events like mouse movements, mouse clicks and so on in a specific window only. I'm not sure if you understand this so ill give you an example.

Okay lets say i want this program to only click within a window like Firefox or windows media player only. So that means if i minimize the window it will still click inside that window while its minimized, and i could continue doing other things while its clicking inside that window.

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Move Mouse Curse To A Specific Coordinates ?

Jul 24, 2010

How can I move my mouse curse to a specific coordinates ? For example no matter where the mouse is on my screen, I want it to go straight to the given coordinates.

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Clicks Or Mouse-up On A Specific Date On The Monthly Calendar?

Jun 11, 2009

I have a process that takes 3 seconds which needs to be run when someone clicks or mouse-up on a specific date on the monthly calendar. However, I do not want the process to run as one moves from month to month by clicking on the arrow keys.

I have tried the date-change and mouse-up events and both of these fire when I move between the months.

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Error In Code For Clicking Mouse On Specific Co-ordinates?

Apr 26, 2010

I used the following code to click mouse on the specific co-ordinates on an open windows application

Private Declare Sub mouse_event Lib "user32" (ByVal dwFlags As Long, ByVal dx As Long, ByVal dy As Long, ByVal cButtons As Long, ByVal dwExtraInfo As Long)
Private Const MOUSEEVENTF_LEFTDOWN = &H2

[code].....

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Remove The Textbox's Focus When Mouse Is Clicked In The Textbox?

Jul 18, 2009

Is there any way to remove the textbox's focus when mouse is clicked in the textbox? the blinking focus in the textbox is not needed for kiosk system. so i try remove it with

[Code]...

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IDE :: FindWindow(Ex) + SendMessage Mouse Click (on Specific Coord). Looks Like A Challenge?

Dec 4, 2006

I just bought a nice G15 Gaming Keyboard. It has a nice LCD screen with media keys (Play, Stop, Next, Previous etc,).Anyway, I managed to intercept the original functions to WMP of it (By Global Hotkeying them).Now, I have to send mouse clicks to my own Music Player (Playa!TraX, it isn't my creation) on a specific coord.This is the code i have, it finds the window, and says it clicks, but nothing happens, what am I doing wrong?

Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal Hwnd As IntPtr, ByVal wMsg As Integer, ByVal wParam As Integer, ByVal lParam As Integer) As Integer

[code].....

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VS 2010 Windows API For Detecting A Mouse Click Anywhere Or On A Specific Program

Jan 4, 2011

I need to create a program that can run code each time the user clicks, I can't use windows forums since its on another program. If the code can detect global mouse clicks(system wide) or only on one program it's fine.

I've done some digging and it looks like windows API can solve my problem but i really suck at using windows API and it looks like SetWindowsHookEx() can solve my problem but i don't know how to use it correctly. This is the code from Pinvoke that I modified to hopefully work for a mouse click. i'm having trouble getting this to work.

Imports System.Runtime.InteropServices
Imports System.Windows.Forms
Module Module1
Sub Main()
Dim t As New MouseHook

[Code]...

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