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4/14/2010
To override the Back key, you use the SHCMBM_OVERRIDEKEYmessage, the SHMENUBARINFOstructure, and the SHSendBackToFocusWindowfunction.
To override the Back key for
dialog boxes with edit controls
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To override, during the handling of the Windows Embedded CE WM_INITDIALOGmessage, send the SHCMBM_OVERRIDEKEYmessage to the menu bar specified in the SHMENUBARINFOstructure as follows:
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SHMENUBARINFO mbi; LPARAM lparam = MAKELPARAM(SHMBOF_NODEFAULT | SHMBOF_NOTIFY, SHMBOF_NODEFAULT | SHMBOF_NOTIFY); lr = SendMessage(mbi.hwndMB, , VK_TBACK, lparam); // lr now contains the previous value of the key override bits.
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To send the Back key to the control with focus, call the SHSendBackToFocusWindowfunction during the handling of the Windows Embedded CE WM_HOTKEYmessage as follows:
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case WM_HOTKEY: { if(HIWORD(lParam) == VK_TBACK) (uMessage, wParam, lParam); }