Rewrite the back health behavior on Windows Mobile Platform

This back key is very strange. If it is not processed by default, even if there is an edit control in the current dialog, it still does not act as a back-to-delete key, or closes the current dialog box, roll back to the previous one. The solution is also simple. When you press back, the OS will throw a wm_hotkey message. We can capture this message and rewrite the back key behavior.

CodeAs follows:

When oninitdialog, shcmbm_overridekey is sent to override vk_back.

Hwnd hwndmenubar = shfindmenubar (m_hwnd );
Sendmessage (hwndmenubar, shcmbm_overridekey, vk_tback, makelparam (shmbof_nodefault | shmbof_notify, shmbof_nodefault | shmbof_notify ));

Then, when the dailog responds to the wm_hotkey, it performs the following processing:

Lresult cmydlg: onhotkey (uint umsg, wparam, lparam, bool & bhandled)
{
If (vk_tback = hiword (lparam ))
{
Bhandled = true;
Shsendbacktofocuswindow (umsg, wparam, lparam );
}
Return 0;
}

 

Write Based on the wtl framework. If you use the original SDK, make some modifications on your own.