editwnd.cpp

Programming.Microsoft.Windows.CE.Dot.NET.3rd.Edition.pdf the chapter 4 example codes.

//======================================================================
// EditWnd - Edit control window code
//
// Written for the book Programming Windows CE
// Copyright (C) 2003 Douglas Boling
//======================================================================
#include <windows.h>                 // For all that Windows stuff
#include "Ctlview.h"                 // Program-specific stuff

extern HINSTANCE hInst;
//----------------------------------------------------------------------
// Global data
//
// Message dispatch table for EditWndWindowProc
const struct decodeUINT EditWndMessages[] = {
    WM_CREATE, DoCreateEditWnd,
    WM_COMMAND, DoCommandEditWnd,
};

// Structure defining the controls in the window
CTLWNDSTRUCT  Edits[] = {
    {TEXT ("edit"), IDC_SINGLELINE, TEXT ("Single line edit control"),
     10,  10, 180,  23, ES_AUTOHSCROLL},

    {TEXT ("edit"), IDC_MULTILINE, TEXT ("Multiline edit control"),
     10,  35, 180,  70, ES_MULTILINE | ES_AUTOVSCROLL},

    {TEXT ("edit"), IDC_PASSBOX, TEXT (""),
     10, 107, 180,  23, ES_PASSWORD},
};
// Structure labeling the edit control WM_COMMAND notifications
NOTELABELS nlEdit[] = {{TEXT ("EN_SETFOCUS "), 0x0100},
                       {TEXT ("EN_KILLFOCUS"), 0x0200},
                       {TEXT ("EN_CHANGE   "), 0x0300},
                       {TEXT ("EN_UPDATE   "), 0x0400},
                       {TEXT ("EN_ERRSPACE "), 0x0500},
                       {TEXT ("EN_MAXTEXT  "), 0x0501},
                       {TEXT ("EN_HSCROLL  "), 0x0601},
                       {TEXT ("EN_VSCROLL  "), 0x0602},
};
//----------------------------------------------------------------------
// InitEditWnd - EditWnd window initialization
//
int InitEditWnd (HINSTANCE hInstance) {
    WNDCLASS wc;

    // Register application EditWnd window class.
    wc.style = 0;                             // Window style
    wc.lpfnWndProc = EditWndProc;             // Callback function
    wc.cbClsExtra = 0;                        // Extra class data
    wc.cbWndExtra = 0;                        // Extra window data
    wc.hInstance = hInstance;                 // Owner handle
    wc.hIcon = NULL,                          // Application icon
    wc.hCursor = LoadCursor (NULL, IDC_ARROW);// Default cursor
    wc.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH);
    wc.lpszMenuName =  NULL;                  // Menu name
    wc.lpszClassName = EDITWND;               // Window class name

    if (RegisterClass (&wc) == 0) return 1;

    return 0;
}
//======================================================================
// Message handling procedures for EditWindow
//----------------------------------------------------------------------
// EditWndWndProc - Callback function for application window
//
LRESULT CALLBACK EditWndProc (HWND hWnd, UINT wMsg, WPARAM wParam,
                              LPARAM lParam) {
    int i;
    //
    // Search message list to see if we need to handle this
    // message.  If in list, call procedure.
    //
    for (i = 0; i < dim(EditWndMessages); i++) {
        if (wMsg == EditWndMessages[i].Code)
            return (*EditWndMessages[i].Fxn)(hWnd, wMsg, wParam, lParam);
    }
    return DefWindowProc (hWnd, wMsg, wParam, lParam);
}
//----------------------------------------------------------------------
// DoCreateEditWnd - Process WM_CREATE message for window.
//
LRESULT DoCreateEditWnd (HWND hWnd, UINT wMsg, WPARAM wParam,
                         LPARAM lParam) {
    int i;

    for (i = 0; i < dim(Edits); i++) {

        CreateWindow (Edits[i].szClass, Edits[i].szTitle,
                      Edits[i].lStyle | WS_VISIBLE | WS_CHILD | WS_BORDER,
                      Edits[i].x, Edits[i].y, Edits[i].cx, Edits[i].cy,
                      hWnd, (HMENU) Edits[i].nID, hInst, NULL);
    }
    return 0;
}
//----------------------------------------------------------------------
// DoCommandEditWnd - Process WM_COMMAND message for window.
//
LRESULT DoCommandEditWnd (HWND hWnd, UINT wMsg, WPARAM wParam,
                          LPARAM lParam) {
    TCHAR szOut[128];
    int i;

    for (i = 0; i < dim(nlEdit); i++) {
        if (HIWORD (wParam) == nlEdit[i].wNotification) {
            lstrcpy (szOut, nlEdit[i].pszLabel);
            break;
        }
    }

    if (i == dim(nlEdit))
        wsprintf (szOut, TEXT ("notification: %x"), HIWORD (wParam));

    SendMessage (GetParent (hWnd), MYMSG_ADDLINE, wParam,
                 (LPARAM)szOut);
    return 0;
}