How to detect in which Excel-workbook was clicked ? - excel

Question

Using Excel-2010, Visual-Studio-2013 Professional,
I am trying to find out programatically, in which Excel-Workbook a mouse-click occurrs (or keyboard-shortcut occurs would also be acceptable)? There are several ideas I persuaded, but all of them show the same issue: The Excel-AddIn used does get executed for all open Excel-Workbooks and messes up the needed information in a sense that it does give me the wrong origin of the mouse-click (or keyboard-shortcut click). It does not tell me the desired origin-window but tells me that the click occurred from a window that is not active by all means! I really don't know why the below code-snippets return arbitrary workbook-origins (but never the one I needed, which is the one window I click inside!)...
What is the best way to tell from which window a mouse-click (or keyboard-shortcut) occurrs having several Excel-Workbooks open working with the same Excel-AddIn code ???
Here is what I tried so far:
A) As seen here, a global keyboard-hook was not the solution.
B) GetActiveWindow()
const int nChars = 256;
IntPtr handle1 = GetActiveWindow();
StringBuilder Buff1 = new StringBuilder(nChars);
if (GetWindowText(handle1, Buff1, nChars) > 0) {
MessageBox.Show(Buff1.ToString());
}
C) GetForegroundWindow()
const int nChars = 256;
IntPtr handle2 = GetForegroundWindow();
StringBuilder Buff2 = new StringBuilder(nChars);
if (GetWindowText(handle2, Buff2, nChars) > 0) {
MessageBox.Show(Buff2.ToString());
}
D) ApplicationIsActivated()
public static bool ApplicationIsActivated()
{
var activatedHandle = GetForegroundWindow();
if (activatedHandle == IntPtr.Zero) {
return false; // No window is currently activated
}
var procId = Process.GetCurrentProcess().Id;
int activeProcId;
GetWindowThreadProcessId(activatedHandle, out activeProcId);
MessageBox.Show(activeProcId.ToString());
MessageBox.Show(procId.ToString());
return activeProcId == procId;
}
Needed imports for the above code-snippets:
[DllImport("user32.dll")]
static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int count);
[DllImport("user32.dll")]
static extern IntPtr GetActiveWindow();
[DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
private static extern IntPtr GetForegroundWindow();
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern int GetWindowThreadProcessId(IntPtr handle, out int processId);
[DllImport("user32.dll")]
static extern IntPtr SetFocus(IntPtr hWnd);
[DllImport("user32.dll")]
static extern IntPtr GetFocus();
Any idea appreciated!