i found out the other day that using "ATL:10024320" and "ATL:100240A0" might not work for all computers.

Code:

hwnd = FindWindowEx(hwnd, IntPtr.Zero, "ATL:10024320", IntPtr.Zero);
hwnd = FindWindowEx(hwnd, IntPtr.Zero, "ATL:100240A0", IntPtr.Zero);

i had my application installed on another computer and it didn't work because "ATL:10024320" was another set of number "ATL:########"

the article implemented a FindChildWindow() function to do a partial match on the string "ATL:".
http://www.mp2kmag.com/downloads/mpvbtest1.zip

i was too lazy to implement a string comparison, so i used GetWindow() to just grab the child:

Code:

[DllImport("user32.dll")]
private static extern IntPtr GetWindow(IntPtr hWnd, uint uCmd);
private const uint GW_CHILD = 5;

hwnd = GetWindow(hwnd, GW_CHILD);  // get the first "ATL:########"
hwnd = GetWindow(hwnd, GW_CHILD);  // get the second "ATL:########"
mapPointHwnd = FindWindowEx(hwnd, IntPtr.Zero, "AfxFrameOrView70", IntPtr.Zero);

Originally Posted by Kevin_Williams

Thanks WilFried
...but I'm not sure how to FindChildWindow in C#...

Hi.

May be this WIN32 API function will be helpfull:

BOOL EnumChildWindows(
HWND hWndParent,
WNDENUMPROC lpEnumFunc,
LPARAM lParam)

Hi Kevin,
i'm reading your cod to access the hidden features of MapPoint. Did you find a way to "press" the DrawCircle n the Drawing toolBar?
Can you show me some code in c# to do it?

Regards,
Gianmaria