클립보드 에디트 (edit, WM_CUT, EM_UNDO, WM_COPY, WM_PASTE, WM_CLEAR, WM_SETTEXT, WM_GETTEXT, MF_ENABLED, MF_BYCOMMAND, MF_GRAYED)

#include <windows.h>
#include "resource.h"

LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
HINSTANCE g_hInst;
LPSTR lpszClass="EditMes";

int APIENTRY WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance
         ,LPSTR lpszCmdParam,int nCmdShow)
{
    HWND hWnd;
    MSG Message;
    WNDCLASS WndClass;
    g_hInst=hInstance;
    
    if(!hPrevInstance) {
        WndClass.cbClsExtra=0;
        WndClass.cbWndExtra=0;
        WndClass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
        WndClass.hCursor=LoadCursor(NULL,IDC_ARROW);
        WndClass.hIcon=LoadIcon(NULL,IDI_APPLICATION);
        WndClass.hInstance=hInstance;
        WndClass.lpfnWndProc=(WNDPROC)WndProc;
        WndClass.lpszClassName=lpszClass;
        WndClass.lpszMenuName=MAKEINTRESOURCE(IDR_MENU1);
        WndClass.style=CS_HREDRAW | CS_VREDRAW;
        RegisterClass(&WndClass);
    }
    hWnd=CreateWindow(lpszClass,lpszClass,WS_OVERLAPPEDWINDOW,
         CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,
         NULL,(HMENU)NULL,hInstance,NULL);
    ShowWindow(hWnd,nCmdShow);
    
    while(GetMessage(&Message,0,0,0)) {
        TranslateMessage(&Message);
        DispatchMessage(&Message);
    }
    return Message.wParam;
}

#define ID_EDIT 100
HWND hEdit;
LRESULT CALLBACK WndProc(HWND hWnd,UINT iMessage,WPARAM wParam,LPARAM lParam)
{
    char str[]="SetText Message";
    char text[128];
    DWORD Start, End;
    switch(iMessage) {
    // 에디트 컨트롤을 만든다.
    case WM_CREATE:
    hEdit=CreateWindow("edit",NULL,
        WS_CHILD | WS_BORDER | WS_VISIBLE | ES_MULTILINE |
        ES_AUTOVSCROLL | WS_VSCROLL | WS_HSCROLL,
        10,10,400,400,hWnd,(HMENU)ID_EDIT,g_hInst,NULL);
        return 0;
    // 선택한 메뉴 항목에 따라 에디트로 적당한 메시지를 보낸다.
    case WM_COMMAND:
        switch (LOWORD(wParam)) {
        case IDM_UNDO:
            SendMessage(hEdit, EM_UNDO,0,0);
            return 0;
        case IDM_CUT:
            SendMessage(hEdit, WM_CUT,0,0);
            break;
        case IDM_COPY:
            SendMessage(hEdit, WM_COPY,0,0);
            break;
        case IDM_PASTE:
            SendMessage(hEdit, WM_PASTE,0,0);
            break;
        case IDM_CLEAR:
            SendMessage(hEdit, WM_CLEAR,0,0);
            break;
        case IDM_SETTEXT:
            SendMessage(hEdit, WM_SETTEXT,0,(LPARAM)str);
            break;
        case IDM_GETTEXT:
            SendMessage(hEdit, WM_GETTEXT,128,(LPARAM)text);
            SetWindowText(hWnd, text);
            break;
        }
        return 0;
    case WM_INITMENU:
        // 취소가 가능한가에 따라 Undo 메뉴 항목을 사용금지/허가한다.
        if (SendMessage(hEdit, EM_CANUNDO,0,0)==TRUE)
            EnableMenuItem(GetMenu(hWnd),IDM_UNDO,MF_ENABLED | MF_BYCOMMAND);
        else
            EnableMenuItem(GetMenu(hWnd),IDM_UNDO,MF_GRAYED | MF_BYCOMMAND);

        // 선택 영역이 없으면 Cut, Copy, Clear 메뉴 항목은 사용할 수 없다.
        SendMessage(hEdit,EM_GETSEL, (WPARAM)&Start, (LPARAM)&End);
        if (Start != End) {
            EnableMenuItem(GetMenu(hWnd),IDM_CUT,MF_ENABLED | MF_BYCOMMAND);
            EnableMenuItem(GetMenu(hWnd),IDM_COPY,MF_ENABLED | MF_BYCOMMAND);
            EnableMenuItem(GetMenu(hWnd),IDM_CLEAR,MF_ENABLED | MF_BYCOMMAND);
        }
        else {
            EnableMenuItem(GetMenu(hWnd),IDM_CUT,MF_GRAYED | MF_BYCOMMAND);
            EnableMenuItem(GetMenu(hWnd),IDM_COPY,MF_GRAYED | MF_BYCOMMAND);
            EnableMenuItem(GetMenu(hWnd),IDM_CLEAR,MF_GRAYED | MF_BYCOMMAND);
        }

        // 클립보드에 텍스트 자료가 없으면 Paste 항목은 사용할 수 없다.
        if (IsClipboardFormatAvailable(CF_TEXT))
            EnableMenuItem(GetMenu(hWnd),IDM_PASTE,MF_ENABLED | MF_BYCOMMAND);
        else
            EnableMenuItem(GetMenu(hWnd),IDM_PASTE,MF_GRAYED | MF_BYCOMMAND);

        return 0;
    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;
    }
    return(DefWindowProc(hWnd,iMessage,wParam,lParam));
}