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Microsoft Windows NT Build 511 (SDK Final Release) 07-24-1993
/******************************************************************************\
* This is a part of the Microsoft Source Code Samples.
* Copyright (C) 1993 Microsoft Corporation.
* All rights reserved.
* This source code is only intended as a supplement to
* Microsoft Development Tools and/or WinHelp documentation.
* See these sources for detailed information regarding the
* Microsoft samples programs.
\******************************************************************************/
/******************************Module*Header*******************************\
* Module Name: mdi.c
*
* MDI demonstration
* + Associating data with a MDI window (using Set/GetWindowLong )
*
* Dependencies:
*
* (#defines)
* (#includes)
* MDI.H
*
\**************************************************************************/
#define STRICT
#include <stdlib.h>
#include "mdi.h"
#include <stdarg.h>
HANDLE ghModule;
HWND ghwndMain = NULL;
HWND ghwndClient = NULL;
HMENU hMenu, hMenuWindow;
HMENU hChildMenu, hChildMenuWindow;
CHAR gszFile[20];
CHAR gszMapName[20];
//
// Instance data for each MDI child window
//
typedef struct _PerWndInfo {
HWND hParent;
HWND hTextWnd;
RECT rcClient;
char CaptionBarText[SIZEOFCAPTIONTEXT];
} INFO, *PINFO;
//
// Forward declarations.
//
BOOL InitializeApp (void);
LONG APIENTRY MainWndProc (HWND, UINT, DWORD, LONG);
LONG APIENTRY MDIWndProc (HWND, UINT, DWORD, LONG);
BOOL CALLBACK About (HWND, UINT, DWORD, LONG);
LONG APIENTRY TextWndProc (HWND, UINT, DWORD, LONG);
VOID vTest (PINFO);
/***************************************************************************\
* WinMain
*
*
* History:
* 11-Feb-1992 Petrus Wong []
* Added conditional compile statement for internal build environment.
* 04-17-91 ???? Created.
\***************************************************************************/
int APIENTRY WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nShowCmd)
{
MSG msg;
HANDLE hAccel;
ghModule = GetModuleHandle(NULL);
if (!InitializeApp()) {
MessageBox(ghwndMain, "MDI: InitializeApp failure!", "Error", MB_OK);
return 0;
}
if (!(hAccel = LoadAccelerators (ghModule, MAKEINTRESOURCE(ACCEL_ID))))
MessageBox(ghwndMain, "MDI: Load Accel failure!", "Error", MB_OK);
while (GetMessage(&msg, NULL, 0, 0)) {
if (!TranslateAccelerator( ghwndMain, hAccel, &msg) &&
!TranslateMDISysAccel( ghwndClient, &msg) ) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return 1;
UNREFERENCED_PARAMETER(lpCmdLine);
UNREFERENCED_PARAMETER(nShowCmd);
UNREFERENCED_PARAMETER(hInstance);
UNREFERENCED_PARAMETER(hPrevInstance);
}
/***************************************************************************\
* InitializeApp
*
* History:
* 11-Feb-1992 Petrus Wong []
* Name changes.
* 09-09-91 Created.
\***************************************************************************/
BOOL InitializeApp(void)
{
WNDCLASS wc;
wc.style = CS_OWNDC;
wc.lpfnWndProc = (WNDPROC) MainWndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = sizeof(LONG);
wc.hInstance = ghModule;
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE);
wc.lpszMenuName = "MainMenu";
wc.lpszClassName = "MDIDemoClass";
if (!RegisterClass(&wc))
return FALSE;
wc.lpfnWndProc = (WNDPROC) MDIWndProc;
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.lpszMenuName = NULL;
wc.lpszClassName = "MDIClass";
if (!RegisterClass(&wc))
return FALSE;
wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = (WNDPROC) TextWndProc;
wc.hIcon = NULL;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_BTNSHADOW);
wc.lpszMenuName = NULL;
wc.lpszClassName = "Text";
if (!RegisterClass(&wc))
return FALSE;
hMenu = LoadMenu(ghModule, "MainMenu");
hChildMenu = LoadMenu(ghModule, "ChildMenu");
hMenuWindow = GetSubMenu(hMenu, 1);
hChildMenuWindow = GetSubMenu(hChildMenu, 2);
ghwndMain = CreateWindowEx(0L, "MDIDemoClass", "MDI Demonstration",
WS_OVERLAPPED | WS_CAPTION | WS_BORDER |
WS_THICKFRAME | WS_MAXIMIZEBOX | WS_MINIMIZEBOX |
WS_CLIPCHILDREN | WS_VISIBLE | WS_SYSMENU,
80, 70, 400, 300,
NULL, hMenu, ghModule, NULL);
if (ghwndMain == NULL)
return FALSE;
SetWindowLong(ghwndMain, GWL_USERDATA, 0L);
SetFocus(ghwndMain); /* set initial focus */
return TRUE;
}
/***************************************************************************\
* MainWndProc
*
* History:
* 11-Feb-1992 Petrus Wong []
* Name changes. Added comments.
* 09-09-91 Created.
\***************************************************************************/
long APIENTRY MainWndProc(
HWND hwnd,
UINT message,
DWORD wParam,
LONG lParam)
{
static int iMDICount=1;
CLIENTCREATESTRUCT clientcreate;
HWND hwndChildWindow;
switch (message) {
case WM_CREATE:
SetWindowLong(hwnd, 0, (LONG)NULL);
clientcreate.hWindowMenu = hMenuWindow;
clientcreate.idFirstChild = 1;
ghwndClient = CreateWindow("MDICLIENT", NULL,
WS_CHILD | WS_CLIPCHILDREN | WS_VISIBLE,
0,0,0,0,
hwnd, NULL, ghModule, (LPVOID)&clientcreate);
return 0L;
case WM_DESTROY: {
PostQuitMessage(0);
return 0L;
}
case WM_COMMAND:
switch (LOWORD(wParam)) {
//
// Getting default MDI functionalities...
//
case IDM_TILE:
SendMessage(ghwndClient, WM_MDITILE, 0L, 0L);
return 0L;
case IDM_CASCADE:
SendMessage(ghwndClient, WM_MDICASCADE, 0L, 0L);
return 0L;
case IDM_ARRANGE:
SendMessage(ghwndClient, WM_MDIICONARRANGE, 0L, 0L);
return 0L;
//
// Creates MDI child
//
case MM_MDI: {
HANDLE hInfo;
PINFO pInfo;
MDICREATESTRUCT mdicreate;
//
// Allocating memory for INFO to be associated with the
// new child
//
hInfo = LocalAlloc(LHND, (WORD) sizeof(INFO));
if (hInfo) {
if ((pInfo = (PINFO)LocalLock(hInfo)) == NULL)
MessageBox(ghwndMain, "Failed in LocalLock", "Error", MB_OK);
wsprintf((LPSTR) &(pInfo->CaptionBarText),
"MDI %d", iMDICount);
pInfo->hParent = ghwndClient;
mdicreate.szClass = "MDIClass";
mdicreate.szTitle = (LPTSTR)&(pInfo->CaptionBarText);
mdicreate.hOwner = ghModule;
mdicreate.x =
mdicreate.y =
mdicreate.cx =
mdicreate.cy = CW_USEDEFAULT;
mdicreate.style = 0L;
//
// passing the handle of the per MDI child INFO to the
// child MDI window for storage
//
mdicreate.lParam = (LONG) hInfo;
/*Create Child Window*/
hwndChildWindow =
(HANDLE) SendMessage(ghwndClient, WM_MDICREATE,
0L,
(LONG)(LPMDICREATESTRUCT)&mdicreate);
if (hwndChildWindow == NULL) {
MessageBox(ghwndMain, "Failed in Creating Child Window", "Error", MB_OK);
return 0L;
}
iMDICount++;
LocalUnlock(hInfo);
} else {
MessageBox(ghwndMain, "Failed to Allocate INFO data!", "Error", MB_OK);
}
return 0L;
}
case MM_ABOUT:
if (DialogBox(ghModule, "AboutBox", ghwndMain, (DLGPROC)About) == -1)
MessageBox(ghwndMain, "DEMO: About Dialog Creation Error!", "Error", MB_OK);
return 0L;
//
// Passes these WM_COMMAND messages to the appropriate active child
// window proc for processing
//
case MM_OPT_1:
case MM_OPT_2:
case MM_OPT_3:
case MM_OPT_4:
case MM_OPT_5:
case MM_OPT_6:
case MM_OPT_7:
case MM_OPT_8: {
HWND hActiveChild;
hActiveChild = (HANDLE) SendMessage(ghwndClient, WM_MDIGETACTIVE, 0L, 0L);
if (hActiveChild)
SendMessage(hActiveChild, WM_COMMAND, wParam, lParam);
return 0L;
}
default:
return DefFrameProc(hwnd, ghwndClient, message, wParam, lParam);
}
default:
return DefFrameProc(hwnd, ghwndClient, message, wParam, lParam);
}
}
/***************************************************************************\
* MDIWndProc
*
* History:
* 11-Feb-1992 Petrus Wong []
* Name changes. Added comments.
* 09-09-91 Petrus Wong Rewrote.
* 04-17-91 ???? Created.
\***************************************************************************/
long APIENTRY MDIWndProc(
HWND hwnd,
UINT message,
DWORD wParam,
LONG lParam)
{
switch (message) {
case WM_COMMAND: {
HANDLE hInfo;
PINFO pInfo;
HWND hTextWnd;
//
// Retrieving this child window's INFO data for displaying
// messages in the text window
//
hInfo = (HANDLE) GetWindowLong(hwnd, 0);
if (hInfo) {
if ((pInfo = (PINFO)LocalLock(hInfo)) == NULL)
MessageBox(ghwndMain, "Failed in LocalLock", "Error", MB_OK);
hTextWnd = pInfo->hTextWnd;
vTest(pInfo);
LocalUnlock(hInfo);
} else {
MessageBox(ghwndMain, "Can't get hInfo!", "Error", MB_OK);
}
switch (LOWORD(wParam)) {
case MM_OPT_1: {
SetWindowText(hTextWnd, "MM_OPT_1");
return 0L;
}
case MM_OPT_2: {
SetWindowText(hTextWnd, "MM_OPT_2");
return 0L;
}
case MM_OPT_3: {
SetWindowText(hTextWnd, "MM_OPT_3");
return 0L;
}
case MM_OPT_4: {
SetWindowText(hTextWnd, "MM_OPT_4");
return 0L;
}
default:
return 0L;
}
}
case WM_SETFOCUS:
break;
//
// Potentially, you can set different menu for different MDI
// child which is currently being active.
//
case WM_MDIACTIVATE:
if ((HWND) lParam == hwnd) {
SendMessage(GetParent(hwnd), WM_MDISETMENU,
(DWORD) hChildMenu,
(LONG) hChildMenuWindow) ;
DrawMenuBar(GetParent(GetParent(hwnd))) ;
}
return 0L;
//
// Whenever the MDI child window is resized, its children has to be
// resized accordingly.
//
case WM_SIZE: {
HANDLE hInfo;
PINFO pInfo;
HWND hTextWnd;
//
// First, get the text window's handle from the per MDI child
// INFO data structure
//
hInfo = (HANDLE) GetWindowLong(hwnd, 0);
if (hInfo) {
if ((pInfo = (PINFO)LocalLock(hInfo)) == NULL)
MessageBox(ghwndMain, "Failed in LocalLock", "Error", MB_OK);
hTextWnd = pInfo->hTextWnd;
LocalUnlock(hInfo);
} else {
MessageBox(ghwndMain, "Can't get hInfo!", "Error", MB_OK);
}
//
// Always, put the text window at the bottom of the MDI window
//
MoveWindow(hTextWnd,
0,
HIWORD(lParam) - GetWindowLong(hTextWnd, GWL_USERDATA),
LOWORD(lParam),
HIWORD(lParam), TRUE);
break;
}
//
// Creates the text window for this MDI child and saves its handle
// in the per MDI child INFO data structure.
//
case WM_CREATE: {
PINFO pInfo;
HANDLE hInfo;
HWND hTextWnd;
hTextWnd = CreateWindow("Text", NULL,
WS_BORDER | SS_LEFT | WS_CHILD | WS_VISIBLE,
0, 0, 0, 0,
hwnd,
(HMENU) 2,
ghModule,
NULL);
SetWindowText(hTextWnd, "Select 'Option' menu items");
//
// INFO was allocated in the MDIWndProc at MM_MDI time and is
// passed to us at WM_CREATE time...
//
hInfo = (HANDLE) ((LPMDICREATESTRUCT) ((LPCREATESTRUCT) lParam)->lpCreateParams)->lParam ;
if (hInfo) {
if ((pInfo = (PINFO)LocalLock(hInfo)) == NULL)
MessageBox(ghwndMain, "Failed in LocalLock", "Error", MB_OK);
if (!GetClientRect(hwnd, &pInfo->rcClient))
MessageBox(ghwndMain, "Failed in GetClientRect!", "Error", MB_OK);
pInfo->hTextWnd = hTextWnd;
//
// Save the handle to INFO in our window structure
//
SetWindowLong(hwnd, 0, (LONG) hInfo);
LocalUnlock(hInfo);
} else {
MessageBox(ghwndMain, "Can't allocate hInfo!", "Error", MB_OK);
}
break;
}
//
// Free the INFO data that associates with this window
// also, reset the menu.
//
case WM_CLOSE: {
HANDLE hInfo;
SendMessage(GetParent(hwnd), WM_MDISETMENU,
(DWORD) hMenu,
(LONG) hMenuWindow) ;
DrawMenuBar(GetParent(GetParent(hwnd))) ;
hInfo = (HANDLE) GetWindowLong(hwnd, 0);
LocalFree(hInfo);
break;
}
default:
return DefMDIChildProc(hwnd, message, wParam, lParam);
} //switch
return DefMDIChildProc(hwnd, message, wParam, lParam);
}
/***************************************************************************\
* About
*
* About dialog proc.
*
* History:
* 09-09-91 Petrus Wong Rewrote.
* 04-13-91 ???? Created.
\***************************************************************************/
BOOL CALLBACK About (
HWND hDlg,
UINT message,
DWORD wParam,
LONG lParam)
{
switch (message) {
case WM_INITDIALOG:
return TRUE;
case WM_COMMAND:
if (wParam == IDOK)
EndDialog(hDlg, wParam);
break;
}
return FALSE;
UNREFERENCED_PARAMETER(lParam);
UNREFERENCED_PARAMETER(hDlg);
}
/***************************************************************************\
*
* TextWndProc
*
* Text Window procedure for displaying miscellaneous messages to user.
*
* History:
* 10-07-91
* 3D text output
*
\***************************************************************************/
LONG APIENTRY TextWndProc (HWND hwnd, UINT message, DWORD wParam, LONG lParam)
{
static HFONT hFont = (HFONT) NULL;
switch (message)
{
case WM_CREATE:
{
LOGFONT lf;
HDC hDC;
HFONT hOldFont;
TEXTMETRIC tm;
RECT rect;
LONG lHeight;
SystemParametersInfo(SPI_GETICONTITLELOGFONT, sizeof(lf), (PVOID) &lf, (UINT)FALSE);
hDC = GetDC(hwnd);
// this is the height for 8 point size font in pixels
lf.lfHeight = 8 * GetDeviceCaps(hDC, LOGPIXELSY) / 72;
hFont = CreateFontIndirect(&lf);
hOldFont = SelectObject(hDC, hFont);
GetTextMetrics(hDC, &tm);
GetClientRect(GetParent(hwnd), &rect);
// base the height of the window on size of text
lHeight = tm.tmHeight+6*GetSystemMetrics(SM_CYBORDER)+2;
// saved the height for later reference
SetWindowLong(hwnd, GWL_USERDATA, lHeight);
SetWindowPos(hwnd, NULL,
0,
rect.bottom-lHeight,
rect.right-rect.left,
lHeight,
SWP_NOZORDER | SWP_NOMOVE);
ReleaseDC(hwnd, hDC);
break;
}
case WM_DESTROY:
if (hFont)
DeleteObject(hFont);
break;
case WM_SETTEXT:
DefWindowProc(hwnd, message, wParam, lParam);
InvalidateRect(hwnd,NULL,FALSE);
UpdateWindow(hwnd);
return 0L;
case WM_PAINT:
{
PAINTSTRUCT ps;
RECT rc;
char ach[128];
int len, nxBorder, nyBorder;
HFONT hOldFont = NULL;
BeginPaint(hwnd, &ps);
GetClientRect(hwnd,&rc);
nxBorder = GetSystemMetrics(SM_CXBORDER);
rc.left += 9*nxBorder;
rc.right -= 9*nxBorder;
nyBorder = GetSystemMetrics(SM_CYBORDER);
rc.top += 3*nyBorder;
rc.bottom -= 3*nyBorder;
// 3D Text
len = GetWindowText(hwnd, ach, sizeof(ach));
SetBkColor(ps.hdc, GetSysColor(COLOR_BTNFACE));
SetBkMode(ps.hdc, TRANSPARENT);
SetTextColor(ps.hdc, RGB(64,96,96));
if (hFont)
hOldFont = SelectObject(ps.hdc, hFont);
ExtTextOut(ps.hdc, rc.left+2*nxBorder+2, rc.top+2, ETO_OPAQUE | ETO_CLIPPED,
&rc, ach, len, NULL);
SetTextColor(ps.hdc, RGB(128,128,128));
if (hFont)
hOldFont = SelectObject(ps.hdc, hFont);
ExtTextOut(ps.hdc, rc.left+2*nxBorder+1, rc.top+1, ETO_CLIPPED,
&rc, ach, len, NULL);
SetTextColor(ps.hdc, RGB(255,255,255));
if (hFont)
hOldFont = SelectObject(ps.hdc, hFont);
ExtTextOut(ps.hdc, rc.left+2*nxBorder, rc.top, ETO_CLIPPED,
&rc, ach, len, NULL);
SetBkMode(ps.hdc, OPAQUE);
if (hOldFont)
SelectObject(ps.hdc, hOldFont);
EndPaint(hwnd, &ps);
return 0L;
}
}
return DefWindowProc(hwnd, message, wParam, lParam);
}
VOID vTest(PINFO pInfo)
{
OutputDebugString("Inside vTest()\n");
UNREFERENCED_PARAMETER(pInfo);
}
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