I'm working on an Windows Form Application in C#, Framework 4 (32 bit).
I have a list that holds coords of the mouse, and I can capture them. So far so good.
But at some point, I want to go to those coords and left mouse click on it.
This is how it looks like right now:
for (int i = 0; i < coordsX.Count; i++)
{
Cursor.Position = new Point(coordsX[i], coordsY[i]);
Application.DoEvents();
Clicking.SendClick();
}
And the Clicking class:
class Clicking
{
private const UInt32 MOUSEEVENTF_LEFTDOWN = 0x0002;
private const UInt32 MOUSEEVENTF_LEFTUP = 0x0004;
private static extern void mouse_event(
UInt32 dwFlags, // motion and click options
UInt32 dx, // horizontal position or change
UInt32 dy, // vertical position or change
UInt32 dwData, // wheel movement
IntPtr dwExtraInfo // application-defined information
);
// public static void SendClick(Point location)
public static void SendClick()
{
// Cursor.Position = location;
mouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, new System.IntPtr());
mouse_event(MOUSEEVENTF_LEFTUP, 0, 0, 0, new System.IntPtr());
}
}
But I'm getting this error:
Could not load type 'program.Clicking' from assembly 'program, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' because the method 'mouse_event' has no implementation (no RVA).
And i realy don't understand what the problem is... Do you guys know what the problem is? or do you know an better way to do what i'm trying to do?
Have you included the following line?
[DllImport("user32.dll")]
static extern void mouse_event(uint dwFlags, uint dx, uint dy, uint dwData,
UIntPtr dwExtraInfo);
This will import the function mouse_event from the user32 dll, which is what you are trying to use within your program. Currently your program does not know about this method within the DLL untill you specify wher it comes from.
The website PInvoke.net user32 Mouse Event is quite handy for the basics on this sort of thing.
The answer to Directing mouse events [DllImport(“user32.dll”)] click, double click will be of great help to your understanding as well.
The flags are what commands you want to send into the mouse_input function, in that example you can see that he is sending both mouse down and mouse up in the same line, this is fine because the mouse_event function will split those flags up and execute them consecutively.
Also note that this method has been superseded by the SendInput command, a good example of SendInput and SetMousePos can be found At this Blog
I guess you are missing the following line
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
Related
I'm currently using the following code to double click a mouse button.
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern void mouse_event(uint dwFlags, uint dx, uint dy, uint cButtons, uint dwExtraInfo);
public static void DoubleClick(AutomationElement element)
{
Point p = element.GetClickablePoint();
Cursor.Position = new System.Drawing.Point((int)p.X, (int)p.Y);
mouse_event(0x02 | 0x04, (uint)p.X, (uint)p.Y, 0, 0);
mouse_event(0x02 | 0x04, (uint)p.X, (uint)p.Y, 0, 0);
}
However, I believe this is leaving resources open that causes my automated tests to not exit cleanly, causing crashes. Plus, it requires the mouse to be actually be on the clickable point, which has the potential to cause issue if the tester moves the mouse at the wrong time. Is there a better was to do this?
As described in the title I've been trying to search for a way to set the mouse coordinates by using a Cursor.Position = new Point(58, 128); Then while holding the Left Mouse button (Down) I'm trying to scroll to another direction(random direction). For example, if I was to go onto Google Earth and set the cursor position at 0,0 the cursor would then scroll around the map. If anyone can help out I would surely appreciate it.
Thanks
Solution: floatas, thanks again for responding to this post. I spent yesterday and today trying to figure this out and I finally got it working. I will post my code in hopes this helps others out.
First of all you will need to import some functions.
To change cursor position:
[DllImport("user32.dll", EntryPoint = "SetCursorPos")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool SetCursorPos(
[In] int X,
[In] int Y);
To simulate mouse events:
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern void mouse_event(
[In] uint dwFlags,
[In] uint dx,
[In] uint dy,
[In] int dwData,
[In] uint dwExtraInfo);
Possible mouse events:
public enum MouseEvents
{
MOUSEEVENTF_LEFTDOWN = 0x02,
MOUSEEVENTF_LEFTUP = 0x04,
MOUSEEVENTF_RIGHTDOWN = 0x08,
MOUSEEVENTF_RIGHTUP = 0x10,
MOUSEEVENTF_WHEEL = 0x0800,
}
You can send mouse down and mouse up, simulating click:
mouse_event((uint)MouseEvents.MOUSEEVENTF_LEFTDOWN | (uint)MouseEvents.MOUSEEVENTF_LEFTUP, X, Y, 0, 0);
Didn't tested this, but should press mouse, drag and release:
mouse_event((uint)MouseEvents.MOUSEEVENTF_LEFTDOWN, X, Y, 0, 0);
SetCursorPos((int)X+10, (int)Y+10);
mouse_event((uint)MouseEvents.MOUSEEVENTF_LEFTUP, X+10, Y+10, 0, 0);
I have an old color picker utility written c++ that I coded years back and want to rewrite using c#.
I implemented the global hook to pick pixels off the screen and so on. Everything is ok but...
The cross cursor reverts to the pointer once the mouse moves outside the form and onto the desktop. This does not happen with my c++ code (MFC actually).
How is this accomplished in c#?
Thank you all.
(I'm using this http://www.codeproject.com/Articles/7294/Processing-Global-Mouse-and-Keyboard-Hooks-in-C for the hook)
The solution (or a workaround) is to simulate the first part of a mouse click event. This will lock the mouse on the calling window, thus preserving the chosen cursor.
[DllImport( "user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall )]
public static extern void mouse_event( uint dwFlags, uint dx, uint dy, uint cButtons, uint dwExtraInfo );
private const int MOUSEEVENTF_LEFTDOWN = 0x02;
private const int MOUSEEVENTF_LEFTUP = 0x04;
private const int MOUSEEVENTF_RIGHTDOWN = 0x08;
private const int MOUSEEVENTF_RIGHTUP = 0x10;
And then after enabling the mouse capture in the code:
mouse_event(
MOUSEEVENTF_LEFTDOWN,
(uint)Cursor.Position.X,
(uint)Cursor.Position.Y,
0,
0 );
this.Cursor = Cursors.Cross;
Hope it helps.
Is there any way I can send a left click event to a TextBox? for what ever the reason although I am doing a TextBox.Focus() and the cursor is blinking inside the TextBox but I cannot start typing in it, But if I do an extra click with the mouse inside the text box then I can start typing. So, I was wondering how to send that event to it?
To send mouse events, you'll need to import user32.dll and use mouse_event(long dwFlags, long dx, long dy, long cButtons, long dwExtraInfo);
Example
class Mouse
{
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern void mouse_event(long dwFlags, long dx, long dy, long cButtons, long dwExtraInfo);
private const int MOUSEEVENTF_LEFTDOWN = 0x02; //Left click
private const int MOUSEEVENTF_LEFTUP = 0x04;
private const int MOUSEEVENTF_RIGHTDOWN = 0x08; //Right click
private const int MOUSEEVENTF_RIGHTUP = 0x10;
public static void sendMouseRightclick(Point p)
{
mouse_event(MOUSEEVENTF_RIGHTDOWN | MOUSEEVENTF_RIGHTUP, p.X, p.Y, 0, 0); //Sends a mouse right click at the specified Point
}
public static void sendMouseClick(Point p)
{
mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, p.X, p.Y, 0, 0); //Sends a mouse left click at the specified Point
}
}
When using this, you may call Mouse.sendMouseClick(Point p) to send a mouse left click at the specified point.
In your case, I think that you might want to use Mouse.sendMouseClick(TextBox.Location); to send a mouse left click at the current TextBox position.
Thanks,
Have a great day :)
Ok to fix this first we should make sure the form itsself is activate.
To do that, in the Form_Shown event we should call this.Activate()
We have an application in which I need to click on a Pane. I tried to use the following code, which I use to click on a button, but it gave Unsupported pattern exception.
InvokePattern click_pattern = (InvokePattern)adjust_button.GetCurrentPattern(InvokePattern.Pattern);
click_pattern.Invoke();
Is there any other way to do it?
Even though the object is clickable, depending on how the click is being handled internally, you may not necessarily be able to use the InvokePattern to perform a click. That appears to be the case here.
As an alternative, you can use some code to move the mouse cursor over the pane and issue a click using P/Invoke. Something like this:
private const UInt32 MOUSEEVENTF_LEFTDOWN = 0x0002;
private const UInt32 MOUSEEVENTF_LEFTUP = 0x0004;
[DllImport("user32.dll")]
private static extern void mouse_event(UInt32 dwFlags, UInt32 dx, UInt32 dy, UInt32 dwData, IntPtr dwExtraInfo);
...
...
AutomationElement paneToClick;
...
...
Cursor.Position = paneToClick.GetClickablePoint();
mouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, new IntPtr());
mouse_event(MOUSEEVENTF_LEFTUP, 0, 0, 0, new IntPtr());