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#include <windows.h>LRESULT CALLBACK windowProcedure(HWND, UINT, WPARAM, LPARAM);void initialize(WNDCLASS&, HINSTANCE&, HWND&, int);HINSTANCE mainInstance;int APIENTRY WinMain(HINSTANCE instance, HINSTANCE previousInstance,					 LPSTR commandParam, int commandShow){	HWND hwnd;	MSG message;	WNDCLASS wndclass;		mainInstance = instance;		initialize(wndclass, instance, hwnd, commandShow);	while (GetMessage(&message, 0, 0, 0)) {		TranslateMessage(&message);		DispatchMessage(&message);	}	return message.wParam;}HWND input, output, from, to, ok;struct WindowSize{	int x, y, width, height;};LRESULT CALLBACK windowProcedure(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam){	enum { ID_INPUT=100, ID_OUTPUT, ID_FROM, ID_TO, ID_OK };	enum { OPTION_DEFAULT = WS_CHILD | WS_VISIBLE };	enum {		EDIT_OPTION = OPTION_DEFAULT | WS_BORDER | ES_AUTOHSCROLL,		COMBO_OPTION = OPTION_DEFAULT| CBS_DROPDOWNLIST,		OK_OPTION = OPTION_DEFAULT | BS_PUSHBUTTON | BS_NOTIFY	};	char ItemList[][8] = {"2 &#51652;&#48277;", "8 &#51652;&#48277;", "10 &#51652;&#48277;", "16 &#51652;&#48277;"};	enum { ITEM_LENGTH = 4, BI = 0, OCT, TEN, HEXA };	const char * const OK_TITLE = "&#48320;       &#54872;";	WindowSize		inputSize = { 10, 10, 200, 25 },		fromSize = { 220, 10, 80, 100 },		toSize = { 300, 10, 80, 100 },		okSize = { 220, 40, 158, 25 },		outputSize = {5, 70, 373, 190 };	int i;	switch(message) {	case WM_CREATE:		input = CreateWindow("edit", NULL, EDIT_OPTION,			inputSize.x, inputSize.y, inputSize.width, inputSize.height,			hwnd, (HMENU) ID_INPUT, mainInstance, NULL);		from = CreateWindow("combobox", NULL, COMBO_OPTION,			fromSize.x, fromSize.y, fromSize.width, fromSize.height,			hwnd, (HMENU) ID_FROM, mainInstance, NULL);		to = CreateWindow("combobox", NULL, COMBO_OPTION,			toSize.x, toSize.y, toSize.width, toSize.height,			hwnd, (HMENU) ID_TO, mainInstance, NULL);		ok = CreateWindow("button", OK_TITLE, OK_OPTION,			okSize.x, okSize.y, okSize.width, okSize.height,			hwnd, (HMENU) ID_OK, mainInstance, NULL);		output = CreateWindow("edit", NULL, EDIT_OPTION,			outputSize.x, outputSize.y, outputSize.width, outputSize.height,			hwnd, (HMENU) ID_OUTPUT, mainInstance, NULL);		for(i = 0; i < ITEM_LENGTH; ++i)			SendMessage(from, CB_ADDSTRING,  0, (LPARAM)ItemList[i]);		SendMessage(from, CB_SETCURSEL, (WPARAM) TEN, 0);		for(i = 0; i < ITEM_LENGTH; ++i)			SendMessage(to, CB_ADDSTRING,  0, (LPARAM)ItemList[i]);		SendMessage(to, CB_SETCURSEL, (WPARAM) HEXA, 0);    	return 0;	case WM_DESTROY:		PostQuitMessage(0);		return 0;	}	return DefWindowProc(hwnd, message, wparam, lparam);}void initialize(WNDCLASS& wndclass, HINSTANCE& instance,						  HWND &hwnd, int commandShow){	const LPSTR NAME = "&#49345;&#48512;&#49345;&#51312;";	enum { WIN_WIDTH = 390, WIN_HEIGHT= 300 };	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 = instance;	wndclass.lpfnWndProc = (WNDPROC) windowProcedure;	wndclass.lpszClassName = NAME;	wndclass.lpszMenuName = NULL;	wndclass.style = CS_HREDRAW | CS_VREDRAW;	RegisterClass(&wndclass);	hwnd = CreateWindow(NAME, NAME, WS_OVERLAPPEDWINDOW,		CW_USEDEFAULT, CW_USEDEFAULT, WIN_WIDTH, WIN_HEIGHT,		NULL, (HMENU)NULL, instance, NULL);	ShowWindow(hwnd, commandShow);}