To detect rotation of the mouse wheel in .NET/WinForms, I can override OnMouseWheel. Clicking can be detected by overriding OnMouseDown (it's just the Middle button). But how do I detect tilting of the wheel (tilt to the left/right for horizontal scrolling)? Neither OnMouseWheel, not OnMouseDown is being called when I tilt the mouse wheel.
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I'm designing a form with a horizontal scroll bar docked at the bottom. I wanted to add support for side-scrolling using mouse tilt buttons and found this solution which, after a bit of tinkering, seemed to do the trick - that is, while the form only had GDI graphics drawn on its surface.
However, since then I've added some controls to the form and found that when the mouse is over any of them the tilt operation only fires once-at-a-time instead of repeatedly as it does when the mouse is over any other part of the form.To see what I mean (if you have a mouse with tilt buttons) dock a horizontal scrollbar onto the bottom of a form, add a few other controls and paste in this code:
Public Class Form1
Const WM_MOUSEHWHEEL As Integer = &H20E
Protected Overrides Sub WndProc(ByRef m As Message)
[code]....
You'll see that side-scrolling repeats when the mouse is over a blank part of the form, but only "one-shots" when it's over a control.I'm guessing the solution lies somewhere in the message's .Result value, but I'm at a loss as to what that should be. In fact I'm not even sure I'm returning a correct value anyway because the code in the original solution threw an exception to the DirectCast function so I swapped that for CType, which seemed to work okay. I've tried working it out using Spy++ but I can't see anything obvious.
UPDATE:I've noticed when I include 'Child' windows in Spy++ there are two (0x020E) messages and two return values, 1 then 0. I presume the message is being passed onto the control by the form. So I guess the question now is: can the message be prevented from being passed to the control? Or can the control's return value be intercepted and converted to 1?
The GetAsyncKeyState Api does'nt recognizes the mouse wheel rotation, I see.Is there way to control the mouse wheel rotation (always, not only when the pointer is over a form of mine) with a simple API, without to Hook the mouse?
View 2 RepliesHow can I enable my mouse wheel while using entering codebehind in the VB IDE?
View 8 RepliesIs it possible to emulate a mouse wheel scroll up/down with VB?
View 3 RepliesI want my combobox to work like the one in Internet Explorer Address Bar,which does not move on move wheel move and the up and down arrow keys. I tried this code but it didn't help.Private Sub ComboBox1_MouseWheel(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles ComboBox1.MouseWheel RemoveHandler ComboBox1.MouseWheel, AddressOf ComboBox1_MouseWheel End Sub
View 5 Replieshow to capture the mouse wheel if the mouse is directly over my control - regardless of what form / control has focus?? - however if another window or control is over the control at the time it won't scroll.
View 3 RepliesI have 1 panel and 1 picturebox and I want to scroll up/down picturebox with mouse wheel.
View 2 RepliesI have one form that display records and I use BindingNavigator to navigate trough the record. I want use also the wheel mouse to go up and down to the record, it's possible do this?
View 3 RepliesThe use of shift + scroll wheel is fairly common for horizontal scrolling.
Both of those are fairly easy to capture. I can use the MouseWheel event with a flag set by the KeyDown, KeyUp events to keep track of when the shift key is pressed.
However, how do I actually trigger the horizontal scrolling? I am aware of WM_MOUSEHWHEEL, can that be used to trigger the event?
Update: For a System.Windows.Form there is a HorizontalScroll property that is of type HScrollProperties. You can manipulate the Value attribute on that object to change the horizontal scrollbar's position. However, so far I haven't spotted any other controls on which that object is available.
Does anyone know of a way to disable the mouse scroll wheel when a control such as a ombobox or listbox has focus? For my purposes, combobox is all I need the answer for.I have a combobox set to trigger a SQL query on SelectedIndexChanged, and accidentally scrolling the wheel while the combobox has focus causes about six SQL queries to fire off simultaneously.
View 3 Repliesi have use one mdi form and with in i have call form1. in mdi there is menu and text box.when i run program the mouse wheel work in form1. but when i click on text box after it only mouse wheel not work on form1.
View 12 RepliesI have a multi-line text box with hundreds of lines. I would like to be able to scroll up or down in the list using the mousewheel (much like using the pgup/pgdown keys). I think I need to use the .mousewheel event, but I'm not sure how to implement this. Is that supported out of the box, or do I need to hook the mouse?
View 2 RepliesI have an unbound datagridview, where column #3 is a DataGridViewComboBoxColumn which is filled with some values for the user to choose.
Problem: mouse wheel.Users usually use the mouse wheel to scroll the datagridview. That is fine.However, if the focus is on a ComboboxCell, the wheel will not do the intended function (scrolling the grid), but will scroll the combo and change the cell value.
I am having lots of accidental changes because of that.
- Disable the wheel, if focus is ON DataGridViewComboBoxColumn ?
how to disable mouse scrolling only in selected combobox..ex. i want only scroll function ius disable only in combobox1 and combobox2
View 5 RepliesI was getting some slightly unusual behavior when using the mouse wheel for some zooming/scaling work (only vaguely related to the earlier thread, for those who remember it). Frankly, it is likely that I have a bug in some code, but that wasn't quite enough to explain what I was seeing. Therefore, I used a error logging feature in my app to note the delta being passed in each Mouse Wheel event. I then ran the app and gave the wheel one good spin, which was about the maximum that I would normally ever spin the wheel in one steady, continuous motion. I wasn't going slow, I wasn't going fast, and I rotated it about as much as my finger comfortably could in a single roll.[code]I then rolled it back the other way using the same motion, and got 8 events, mostly under 200, but one of them was -331 and the other was -7940.
After a handful of tests, it appears that the wheel event is raised often, which is no surprise, but that the values fluctuate all over the place. With a continuous rotation, or as nearly continuous as I can make it, I can see a series of events with one of them easily being ten times the rest.The problem this presents is that the scaling I am using is not smooth (nor is it standard mathematical scaling, but that's a different story). Each zoom level doubles the size of the objects relative to the previous level, though the distance between them stays the same. I would like to do this by dividing the delta by some factor, and if that is above a threshold, increase the zoom level. That won't work smoothly, in this case. If I make the factor something small enough that I pick up a small rotation, then any larger rotation is likely to include a delta that takes the screen through all zoom levels in a single step. Alternatively, if I make the factor large, then all smaller rotations are simply ignored.One option would be to filter out rotation values below 200 and above 800, or so. I am looking for other alternatives.
The code given below works fine. The only problem is mouse wheel/keyup cannot be used after the TOP image is displayed, it fills the keyboard buffer. Then I have to wait awhile to use wheel/keydown. Also the images after wheel/keydown goes beyond last image. It should stop at the last image like it stops at the first image. Code courtesy of Geek On Demand.
[Code]...
My application uses a trackbar to sort images.It works best if the mouse wheel scroll lines value is one.I can advise my users to set the value themselves in the control panel having determined it is three, but I cant set a users scroll value to one for them.I would like to have some visual basic code in the form load that sets the scroll line value to one.
View 5 RepliesIf I have a winform, may I know how can I control the zoom level of the font in theapplication (as well as the application window itself obviously) by using Ctrl + Mouse Scroll Wheel? I see there is a Delta in the Scroll Wheel event, but not sure how that works.Is there any code sample that I can look into?
View 2 RepliesI want to make an auto log off feature, I want to detect if there is any user input, and if there isn't the user will be automatically logged off. So I want to know how to detect mouse wheel events when the form doesn't have focus.
View 1 RepliesI have a tab control with two tab pages. One page has the auto scroll enabled since there is to much content in the page. The middle mouse wheel doesn't scroll the scroll bar; I have to actually click and hold the scroll bar and drag it down to scroll. Is there a property to allow this?
View 2 Replieshow to, if you have two mouses connected and then decect which mouse moves and execute the code. Like:
If Mouse1_Move Then
'code
End If
If Mouse2_Move Then
[code]....
I tried with multiple cursors - but only option is Multipoint SDK - but it can't work on external app and modificating CPNMouse, but i don't know C++?
how to get VB to detect mouse movement, clicks and keyboard presses. I am creating a screensaver program that does not intergrate with the windows screensaver.
The reason I am doing this is because I am trying to invent a screensaver that people can use their custome pictures to see with password protection for their PC when the screensaver facility has been disabled on a domain.
how to detect mouse scroll with its direction ?
View 2 Replieshow to detect mouse up event outside my app using GetAsyncKeyState ?
View 2 RepliesI want to detect if the mouse is down on the non-client area of a usercontrols parentform, from the usercontrol.
My first thought is to subclass, But how does a usercontrol get its parentforms window messages?
Well im trying to make my own basic Slider control just so i can learn abit how to interact with the mouse...
so far i have this:
vb.net:
Private Sub Rectangle_MouseMove(ByVal sender as Object, ByVal e as System.Windows.Input.MouseEventArgs)
[Code]....
so this works while the mouse is on the rectangle.. but if we look how the slider behaves its not the same you click and hold the mouse down and can drag it any where even outside of the window and it still updates its position..
I have a WPF ParentUserControl and some ChildUserControlA ChildUserControlB etc. (also WPF controls)
The ChildUserControls are controls containing on them some other basic elements (textboxes, labels, etc)
In the main form's status bar I need to display the name of the currenlty mouse overed ChildUserControl.[code]...
I'm making an app that will be able to repeat the user's mouse movement, and also clicks.I have managed to repeat the movement but i have no idea where to start in detecting click outside of form..
[Code]...
I'm writing a little application that needs to detect when a USB Mouse is Connected and Disconnected. I am running into a dead end when trying to determine the best way detect this. I have tried WMI and WmdProc but I think I am hitting a mental block trying to figure out the best option.best way to listen for the connection and disconnection of a USB mouse?
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