핫키 (hotkey, HIBYTE, HKM_GETHOTKEY, HOTKEYF_CONTROL, HOTKEYF_SHIFT, HOTKEYF_ALT, HOTKEYF_EXT)

#include <windows.h>

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

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=NULL;
        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;
}

#include <commctrl.h>
HWND hHotKey;
LRESULT CALLBACK WndProc(HWND hWnd,UINT iMessage,WPARAM wParam,LPARAM lParam)
{
    PAINTSTRUCT ps;
    HDC hdc;
    LRESULT Key;
    char sMod[32];
    char vk;
    char str[128];

    switch(iMessage) {
    case WM_CREATE:
        InitCommonControls();
        hHotKey=CreateWindow(HOTKEY_CLASS,NULL,WS_CHILD | WS_VISIBLE | WS_BORDER,
            10,10,200,30,hWnd,NULL,g_hInst,NULL);
        return 0;
    case WM_LBUTTONDOWN:
        sMod[0]=0;
        Key=SendMessage(hHotKey,HKM_GETHOTKEY,0,0);
        if (HIBYTE(LOWORD(Key)) & HOTKEYF_CONTROL)
            strcat(sMod, "Ctrl+");
        if (HIBYTE(LOWORD(Key)) & HOTKEYF_SHIFT)
            strcat(sMod, "Shift+");
        if (HIBYTE(LOWORD(Key)) & HOTKEYF_ALT)
            strcat(sMod, "Alt+");
        if (HIBYTE(LOWORD(Key)) & HOTKEYF_EXT)
            strcat(sMod, "Ext+");
        vk=(char)(LOBYTE(LOWORD(Key)));
        if (vk==0) {
            wsprintf(str,"핫키를 지정하지 않았습니다");
        } else {
            wsprintf(str,"%s%c키를 핫키로 지정했습니다",sMod,vk);
        }
        MessageBox(hWnd,str,"알림",MB_OK);
        return 0;
    case WM_PAINT:
        hdc=BeginPaint(hWnd, &ps);
        EndPaint(hWnd, &ps);
        return 0;
    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;
    }
    return(DefWindowProc(hWnd,iMessage,wParam,lParam));
}