[Windows API] 윈도우 API MDI

MDI

지금까지 메인 윈도우 하나만 사용했던 SDI 방식과 달리 여러 개의 문서를 사용하는 프로그램 형태 (비쥬얼 스튜디오 같이 프로젝트 창,도구 창 등등 여러 문서를 열면서 작업을 하는 프로그램)

MDI 프로그램의 구조

-차일드 윈도우에서 실제 작업들이 이루어 진다. 

 (child 윈도우들은 프레임 윈도우보다 커질수 없다.)

#예제 소스

#include <windows.h> #include "resource.h" LRESULT CALLBACK MDIWndProc(HWND, UINT, WPARAM, LPARAM); LRESULT CALLBACK MDIChildProc(HWND, UINT, WPARAM, LPARAM); HINSTANCE g_hInst; HWND hWndMain; HWND g_hFrameWnd; HWND g_hMDIClient; LPCTSTR lpszClass = TEXT("MDI"); int ChildNum = 1; int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmdParam, int nCmdShow) { HWND hWnd; MSG Message; WNDCLASS WndClass; g_hInst = hInstance; //Frame 윈도우 등록 WndClass.cbClsExtra = 0; WndClass.cbWndExtra = 0; WndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1); WndClass.hCursor = LoadCursor(NULL, IDC_ARROW); WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION); WndClass.hInstance = hInstance; WndClass.lpfnWndProc = MDIWndProc; 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); g_hFrameWnd = hWnd; //차일드 윈도우 등록 WndClass.lpszClassName = TEXT("MDIExamChild"); WndClass.lpfnWndProc = MDIChildProc; WndClass.hIcon = LoadIcon(NULL, IDC_ARROW); WndClass.lpszMenuName = NULL; WndClass.cbWndExtra = sizeof(DWORD); //여분메모리 RegisterClass(&WndClass); while (GetMessage(&Message, NULL, 0, 0)) { if(TranslateMDISysAccel(g_hMDIClient,&Message)) TranslateMessage(&Message); DispatchMessage(&Message); } return (int)Message.wParam; } LRESULT CALLBACK MDIWndProc(HWND hWnd, UINT iMessage, WPARAM wParam, LPARAM lParam) { CLIENTCREATESTRUCT ccs; MDICREATESTRUCT mcs; switch (iMessage) { case WM_CREATE: //MDI client 생성 ccs.hWindowMenu = GetSubMenu(GetMenu(hWnd), 1); ccs.idFirstChild = IDM_WINDOWCHILD; g_hMDIClient = CreateWindow(TEXT("MDICLIENT"), NULL, WS_CHILD | WS_VSCROLL | WS_HSCROLL | WS_CLIPCHILDREN, 0, 0, 0, 0, hWnd, (HMENU)NULL, g_hInst, (LPSTR)&ccs); ShowWindow(g_hMDIClient, SW_SHOW); return 0; case WM_COMMAND: switch (LOWORD(wParam)) { case ID_FILENEW: //새로운 윈도우 차일드만든다. mcs.szClass = TEXT("MDIExamChild"); mcs.szTitle = TEXT("Child"); mcs.hOwner = g_hInst; mcs.x = mcs.y = CW_USEDEFAULT; mcs.cx = mcs.cy = CW_USEDEFAULT; mcs.style = MDIS_ALLCHILDSTYLES; SendMessage(g_hMDIClient, WM_MDICREATE, 0, (LPARAM)(LPMDICREATESTRUCT)&mcs); //하위창 하나 만들어라 클라이언트에게 메시지 보냄 break; case ID_WIN_TILE: SendMessage(g_hMDIClient, WM_MDITILE, (WPARAM)MDITILE_HORIZONTAL, 0); break; case ID_WIN_CASCADE: SendMessage(g_hMDIClient, WM_MDICASCADE, (WPARAM)MDITILE_SKIPDISABLED, 0); break; case ID_WIN_ARRANGE: SendMessage(g_hMDIClient, WM_MDIICONARRANGE,0, 0); break; } break; case WM_DESTROY: PostQuitMessage(0); return 0; } return(DefFrameProc(hWnd,g_hMDIClient,iMessage, wParam, lParam)); } LRESULT CALLBACK MDIChildProc(HWND hWnd, UINT iMessage, WPARAM wParam, LPARAM lParam) { PAINTSTRUCT ps; HDC hdc; TCHAR str[128]; switch (iMessage) { case WM_CREATE: wsprintf(str, TEXT("Child %d"), ChildNum); SetWindowLong(hWnd, 0, ChildNum); ChildNum++; SetWindowText(hWnd, str); return 0; case WM_PAINT: hdc = BeginPaint(hWnd, &ps); wsprintf(str, TEXT("This is a MDI %dth Child Window"), GetWindowLong(hWnd, 0)); TextOut(hdc, 0, 0, str, lstrlen(str)); EndPaint(hWnd, &ps); return 0; } return (DefMDIChildProc(hWnd, iMessage, wParam, lParam)); }