I am trying to automate a dynamically appearing dialogue box.
I need to pass text to it,s text field and then press a button over this.
What I have tried so far.
[DllImport("user32.dll", EntryPoint = "FindWindow", SetLastError = true)]
static extern IntPtr FindWindowByCaption(IntPtr ZeroOnly, string lpWindowName);
IntPtr handle= FindWindowByCaption(System.IntPtr.Zero, "Caption Of File");
I am getting the handle of dialogue box correctly.
List<IntPtr> childWindows= GetChildWindows(handle);//To get the child controls in this dialogue box
Source
But when I try to cast it to control I get null.
foreach (IntPtr i in childWindows)
{
Control c = Control.FromHandle(i);
}
So can any body tell what is wrong.I am supposing that I shall cast handle to control and then interact with control properties(e.g: text).
I've been using code like this sucessfully for years to perform single sign on to an application that prompts the user for their username/pwd/domain. The only caution is you need to know the control structure of the dialog you're targeting, but this is easily accomplished with Spy++ and rarely changes. Of course you will need to modify this code for the control structure of your window.
[DllImport("user32.dll")]
static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter,
string lpszClass, string lpszWindow);
[DllImport("user32.dll", CharSet = CharSet.Auto)]
public static extern IntPtr SendMessage(IntPtr hWnd, uint msg, int wParam, string lParam);
[DllImport("User32.Dll")]
public static extern IntPtr PostMessage(IntPtr hWnd, uint msg, int wParam, int lParam);
private const uint WM_GETTEXTLENGTH = 0x000E;
private const uint WM_SETTEXT = 0x000C;
private const uint WM_GETTEXT = 0x000D;
private const uint BM_CLICK = 0x00F5;
private const uint WM_CLOSE = 0x0010;
enum GetWindow_Cmd : uint
{
GW_HWNDFIRST = 0,
GW_HWNDLAST = 1,
GW_HWNDNEXT = 2,
GW_HWNDPREV = 3,
GW_OWNER = 4,
GW_CHILD = 5,
GW_ENABLEDPOPUP = 6
}
var dialog FindWindow("optionalClassNameHere", "Log On"); //Get the handle of the window
var w3 = GetWindow(dialog , (uint)GetWindow_Cmd.GW_CHILD); //I use GetWindow to walk the window controls
var wUid = FindWindowEx(w3, IntPtr.Zero, "Edit", "");
var w4 = GetWindow(wUid, (uint)GetWindow_Cmd.GW_HWNDNEXT);
var wPwd = FindWindowEx(w4 , IntPtr.Zero, "Edit", "");
var wOK = FindWindowEx(w3, IntPtr.Zero, "Button", "OK");
SendMessage(wUid, WM_SETTEXT, 0, _WinDomain + "\\" + Username); //Send username to username edit control
SendMessage(wPwd, WM_SETTEXT, 0, Password); //Send password to password edit control
PostMessage(wOK, BM_CLICK, 0, 0); //Send left click(0x00f5) to OK button
Control.FromHandle can only work for controls in your process that are implemented by Control descendents. I'd guess this window is outside your process.
You need to use Win32 API methods to modify it.
Related
I am trying to intercept VB MsgBoxes from a word template and click them automatically. This code is inserted in a C# Winforms Application, in a class and KillMbox() runs at the click of a button from that form.
I have tried the app in Debug Mode of Visual Studio and the code ran perfectly, intercepting the VBA messagebox.
However, after I have closed the Debug Mode and tried again, I receive An unhandled exception of type 'System.NullReferenceException' occurred in Unknown Module. Object reference not set to an instance of an object.
The error appears at the line GetWindowText(txtHandle, sb, len + 1);.
I have tried the app at a different computer in Debug Mode and it has the same issue, working only for the first time.
In Build version, the app just crashes, receiving App-Name has stopped working.
[DllImport("user32.dll")] static extern int FindWindow(string lpClassName, string lpWindowName);
[DllImport("user32.dll")] static extern int SendMessage(int hWnd, int wMsg, int wParam, int lParam);
[DllImport("user32.dll", SetLastError = true)] static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)] static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);
[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] static extern int GetWindowTextLength(IntPtr hWnd);
public static void KillMbox()
{
for (int h = 0; h == 0;)
{
Thread.Sleep(1000);
h = FindWindow(null, "Microsoft Word");
if (h != 0)
{
IntPtr hAsIntPtr = new IntPtr(h);
IntPtr txtHandle = FindWindowEx(hAsIntPtr, IntPtr.Zero, "Static", null);
int len = GetWindowTextLength(txtHandle);
StringBuilder sb = new StringBuilder();
GetWindowText(txtHandle, sb, len + 1);
SendMessage(h, 16, 0, 0);
MessageBox.Show(sb.ToString());
}
}
}
Is this a code-related error or a bug? Thank you!
i try to send Messages from one Application to another Application..
I think the Code works perfectly and is not the problem, but the text is sending to the wrong textbox? I looked with Spy++, and i have two textboxes in Application 2, but for both textboxes i return the same Class from Spy++ ---> "WindowsForms10.EDIT.app.0.141b42a_r13_ad1"...
My Main Question is now, why have both textboxes the same "class" and how can i fix this? thx
private const int WM_SETTEXT = 0x000C;
[DllImport("user32.dll")]
private static extern IntPtr FindWindow(string lpClassName,string lpWindowName);
[DllImport("User32.dll")]
private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindows);
[DllImport("User32.dll")]
private static extern Int32 SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, StringBuilder lParam);
private void button4_Click(object sender, EventArgs e)
{
IntPtr hWnd = FindWindow(null, "Form1");
if (!hWnd.Equals(IntPtr.Zero))
{
IntPtr edithWnd = FindWindowEx(hWnd, IntPtr.Zero, "WindowsForms10.EDIT.app.0.141b42a_r13_ad1", null);
if (!edithWnd.Equals(IntPtr.Zero))
SendMessage(edithWnd, WM_SETTEXT, IntPtr.Zero, new StringBuilder("Hello World!"));
}
}
//Working Stuff...
IntPtr edithWnd = FindWindowEx(hWnd, IntPtr.Zero, "WindowsForms10.EDIT.app.0.141b42a_r12_ad1", null);
IntPtr nextHnd = edithWnd;
IntPtr editWnd = FindWindowEx(hWnd, nextHnd, "WindowsForms10.EDIT.app.0.141b42a_r12_ad1", null);
IntPtr nextHnd1 = editWnd;
IntPtr editWnd1 = FindWindowEx(hWnd, nextHnd1, "WindowsForms10.EDIT.app.0.141b42a_r12_ad1", null);
IntPtr nextHnd2 = editWnd1;
IntPtr editWnd2 = FindWindowEx(hWnd, nextHnd2, "WindowsForms10.EDIT.app.0.141b42a_r12_ad1", null);
I am developing an application in c#.net,and for that i am writing code to display icon in a system tray,and whenever a new message arrives the balloon tooltip will be shown there,which has click event which will open new message arrived,everything works fine,but the problem is i am getting multiple numbers of icon generated in system tray,which shuld be only one,how can i prevent it?i found on internet how to dispose them,but couldn't find way to prevent more than one.or is there any better way to show notifications for newly received message..please help me if you know the solution..
There are better custom solutions available see here and here for some examples.
However, System Tray doesn't refresh automatically. If you show/hide multiple system tray icons, it can mess the tray up. Normally all disposed icons will disappear when you mouse hover. However, there is a way to refresh the system tray programmatically. Reference here.
Note : SendMessage function, sends the specified message to a window or windows. The SendMessage function calls the window procedure for the specified window and does not return until the window procedure has processed the message.
[StructLayout(LayoutKind.Sequential)]
public struct RECT
{
public int left;
public int top;
public int right;
public int bottom;
}
[DllImport("user32.dll")]
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
[DllImport("user32.dll")]
public static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
[DllImport("user32.dll")]
public static extern bool GetClientRect(IntPtr hWnd, out RECT lpRect);
[DllImport("user32.dll")]
public static extern IntPtr SendMessage(IntPtr hWnd, uint msg, int wParam, int lParam);
public void RefreshTrayArea()
{
IntPtr systemTrayContainerHandle = FindWindow("Shell_TrayWnd", null);
IntPtr systemTrayHandle = FindWindowEx(systemTrayContainerHandle, IntPtr.Zero, "TrayNotifyWnd", null);
IntPtr sysPagerHandle = FindWindowEx(systemTrayHandle, IntPtr.Zero, "SysPager", null);
IntPtr notificationAreaHandle = FindWindowEx(sysPagerHandle, IntPtr.Zero, "ToolbarWindow32", "Notification Area");
if (notificationAreaHandle == IntPtr.Zero)
{
notificationAreaHandle = FindWindowEx(sysPagerHandle, IntPtr.Zero, "ToolbarWindow32", "User Promoted Notification Area");
IntPtr notifyIconOverflowWindowHandle = FindWindow("NotifyIconOverflowWindow", null);
IntPtr overflowNotificationAreaHandle = FindWindowEx(notifyIconOverflowWindowHandle, IntPtr.Zero, "ToolbarWindow32", "Overflow Notification Area");
RefreshTrayArea(overflowNotificationAreaHandle);
}
RefreshTrayArea(notificationAreaHandle);
}
private static void RefreshTrayArea(IntPtr windowHandle)
{
const uint wmMousemove = 0x0200;
RECT rect;
GetClientRect(windowHandle, out rect);
for (var x = 0; x < rect.right; x += 5)
for (var y = 0; y < rect.bottom; y += 5)
SendMessage(windowHandle, wmMousemove, 0, (y << 16) + x);
}
I'm writing a function that will allow users to import their e-mails from outlook in to corporate storage. But I've encounter a problem with security promt, and since we still have clients with office 2003 we can't disable it.
I'm trying to autoclick it with this code:
[DllImport("User32.dll")]
public static extern Int32 FindWindow(String lpClassName, String lpWindowName);
[DllImport("user32.dll", CharSet = CharSet.Auto)]
public static extern int SendMessage(int hWnd, int msg, int wParam, IntPtr lParam);
[DllImport("user32.dll", SetLastError = true)]
public static extern IntPtr FindWindowEx(IntPtr parentHandle, IntPtr childAfter, string className, string windowTitle);
private const int WM_LBUTTONDOWN = 0x201;
private const int WM_LBUTTONUP = 0x0202;
private void button1_Click(object sender, EventArgs e)
{
int hwnd = 0;
IntPtr hwndChild = IntPtr.Zero;
while (true)
{
hwnd = FindWindow(null, "Microsoft Outlook");
if (hwnd != 0)
{
hwndChild = FindWindowEx((IntPtr)hwnd, IntPtr.Zero, "Button", "Yes");
if (hwndChild != IntPtr.Zero)
{
SendMessage((int)hwndChild, WM_LBUTTONDOWN, 0, IntPtr.Zero);
SendMessage((int)hwndChild, WM_LBUTTONUP, 0, IntPtr.Zero);
}
else
{
//...
}
}
else
{
//...
}
hwnd = 0;
}
}
But when I'm trying to use that code I've encounter unexpected problem. Security promt will only disappear only when I'm actually performing mouse click no matter where even on some empty screen space. What is wrong with it?
Try out MAPILab's Advanced Security for Outlook. Should also work for Outlook 2003. This will let you give a permanent access for your application - a pop-up window will show only the first time you access Outlook items:
http://www.mapilab.com/outlook/security/
Advanced Security will have to be installed on each machine you run your app. It's free for noncommercial and commercial use.
You should try using SendKeys and send Y for Yes.
ok, I have found many posts on finding a window by name, etc. What I have not found is how to find and switch the window application focus to last active window. The code I am showing below will give me the list of active applications in the task manager that are active.
What I can not figure out how to do is figure out what application was the last active application, and then switch to it. for example...
I have my custom winform application open.
I click a button
My application switches to the last active window / application.
Here is the working code I have so far. (this is the action on a button, and it expects that the application has a textbox named textbox1. you will also need to add using System.Diagnostics;
private void button1_Click(object sender, EventArgs e)
{
Process[] procs = Process.GetProcesses();
IntPtr hWnd;
foreach (Process proc in procs)
{
if ((hWnd = proc.MainWindowHandle) != IntPtr.Zero)
{
textBox1.Text += (proc.ProcessName.ToString());
textBox1.Text += "\t";
textBox1.Text += (hWnd.ToString());
textBox1.Text += "\r\n";
}
}
}
Check this article out: http://www.whitebyte.info/programming/how-to-get-main-window-handle-of-the-last-active-window
Specifically, this code:
[DllImport("user32.dll", SetLastError = true)]
static extern IntPtr GetWindow(IntPtr hWnd, uint uCmd);
enum GetWindow_Cmd : uint
{
GW_HWNDFIRST = 0,
GW_HWNDLAST = 1,
GW_HWNDNEXT = 2,
GW_HWNDPREV = 3,
GW_OWNER = 4,
GW_CHILD = 5,
GW_ENABLEDPOPUP = 6
}
[DllImport("user32.dll", ExactSpelling = true, CharSet = CharSet.Auto)]
public static extern IntPtr GetParent(IntPtr hWnd);
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool SetForegroundWindow(IntPtr hWnd);
[...]
IntPtr targetHwnd = GetWindow(Process.GetCurrentProcess().MainWindowHandle, (uint)GetWindow_Cmd.GW_HWNDNEXT);
while (true)
{
IntPtr temp = GetParent(targetHwnd);
if (temp.Equals(IntPtr.Zero)) break;
targetHwnd = temp;
}
SetForegroundWindow(targetHwnd);
Since my comments didn't help you, here's a little resume (didn't test it though):
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool IsWindowVisible(IntPtr hWnd);
[DllImport("user32.dll")]
static extern IntPtr GetLastActivePopup(IntPtr hWnd);
[DllImport("user32.dll", ExactSpelling = true)]
static extern IntPtr GetForegroundWindow();
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool SetForegroundWindow(IntPtr hWnd);
const uint GA_PARENT = 1;
const uint GA_ROOT = 2;
const uint GA_ROOTOWNER = 3;
public IntPtr GetPreviousWindow()
{
IntPtr activeAppWindow = GetForegroundWindow();
if ( activeAppWindow == IntPtr.Zero )
return IntPtr.Zero;
IntPtr prevAppWindow = GetLastActivePopup(activeAppWindow);
return IsWindowVisible(prevAppWindow) ? prevAppWindow : IntPtr.Zero;
}
public void FocusToPreviousWindow()
{
IntPtr prevWindow = GetPreviousWindow();
if ( prevWindow != IntPtr.Zero )
SetForegroundWindow(prevWindow);
}