// Win32 Tutorial (Multiple Document Interface)
// Alan Baylis 2004
#include <windows.h>
#include <commctrl.h>
#include "resource.h"
const char ClassName[] = "MainWindowClass";
const char ChildClassName[] = "ChildWindowClass";
HWND hWndClient;
LRESULT CALLBACK ChildProc( HWND hWnd,
UINT Msg,
WPARAM wParam,
LPARAM lParam )
{
switch(Msg)
{
// Handle messages from the child windows
}
return DefMDIChildProc(hWnd, Msg, wParam, lParam);
}
LRESULT CALLBACK WndProc( HWND hWnd,
UINT Msg,
WPARAM wParam,
LPARAM lParam )
{
switch (Msg)
{
case WM_CREATE:
{
CLIENTCREATESTRUCT ccs;
ccs.hWindowMenu = GetSubMenu(GetMenu(hWnd), 0);
ccs.idFirstChild = ID_MDI_FIRSTCHILD;
hWndClient = CreateWindowEx(
WS_EX_CLIENTEDGE,
"MDICLIENT",
NULL,
WS_CHILD | WS_CLIPCHILDREN | WS_VSCROLL | WS_HSCROLL,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
hWnd,
(HMENU)ID_MDI_CLIENT,
(HINSTANCE)GetWindowLong(hWnd, GWL_HINSTANCE),
(LPVOID)&ccs);
if(!hWndClient)
{
MessageBox(hWnd, "Failed To Create The Client Window", "Error", MB_OK);
}
ShowWindow(hWndClient, SW_SHOW);
}
break;
case WM_COMMAND:
{
switch(LOWORD(wParam))
{
case IDM_FILE_EXIT:
PostMessage(hWnd, WM_CLOSE, 0, 0);
break;
case IDM_FILE_NEW:
{
HWND hChild;
CREATESTRUCT cs;
ZeroMemory(&cs, sizeof(CREATESTRUCT));
hChild = CreateWindowEx(
WS_EX_MDICHILD,
ChildClassName,
"Child Window",
WS_CHILD | WS_VISIBLE | WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
hWndClient,
NULL,
(HINSTANCE)GetWindowLong(hWnd, GWL_HINSTANCE),
&cs);
if(!hChild)
MessageBox(hWnd, "Failed To Create The Child Window", "Error", MB_OK);
}
break;
default:
{
if(LOWORD(wParam) >= ID_MDI_FIRSTCHILD)
DefFrameProc(hWnd, hWndClient, Msg, wParam, lParam);
else
{
HWND hChild;
hChild = (HWND)SendMessage(hWndClient, WM_MDIGETACTIVE,0,0);
if(hChild)
SendMessage(hChild, WM_COMMAND, wParam, lParam);
}
}
}
return 0;
}
break;
case WM_CLOSE:
DestroyWindow(hWnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefFrameProc(hWnd, hWndClient, Msg, wParam, lParam);
}
return 0;
}
INT WINAPI WinMain( HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
INT nCmdShow )
{
InitCommonControls();
WNDCLASSEX wc;
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = (WNDPROC)WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON));
wc.hIconSm = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON));
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wc.lpszMenuName = MAKEINTRESOURCE(IDR_MENU);
wc.lpszClassName = ClassName;
if (!RegisterClassEx(&wc))
{
MessageBox(NULL, "Failed To Register The Window Class.", "Error", MB_OK | MB_ICONERROR);
return 0;
}
wc.lpfnWndProc = (WNDPROC)ChildProc;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_3DSHADOW + 1);
wc.lpszMenuName = NULL;
wc.lpszClassName = ChildClassName;
if(!RegisterClassEx(&wc))
{
MessageBox(NULL, "Failed To Register The Child Window Class", "Error", MB_OK | MB_ICONERROR);
return 0;
}
HWND hWnd;
hWnd = CreateWindowEx(
WS_EX_CLIENTEDGE,
ClassName,
"MDI",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
600,
400,
NULL,
NULL,
hInstance,
NULL);
if (!hWnd)
{
MessageBox(NULL, "Window Creation Failed.", "Error", MB_OK | MB_ICONERROR);
return 0;
}
ShowWindow(hWnd, SW_SHOW);
UpdateWindow(hWnd);
MSG Msg;
while (GetMessage(&Msg, NULL, 0, 0))
{
if (!TranslateMDISysAccel(hWndClient, &Msg))
{
TranslateMessage(&Msg);
DispatchMessage(&Msg);
}
}
return Msg.wParam;
}
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