MAIN.CPP

//**************************************************************************** 
//  Module:     NMCHAT.EXE 
//  File:       MAIN.CPP 
//  Content:     
//               
// 
//  Copyright (c) Microsoft Corporation 1997 
// 
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF  
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO  
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A  
// PARTICULAR PURPOSE. 
//**************************************************************************** 
 
#include "precomp.h" 
 
 
//**************************************************************************** 
// 
// Global Variables 
// 
//**************************************************************************** 
 
HINSTANCE ghInst       = NULL;          // Current Instance 
HACCEL    ghAccelTable = NULL;          // Menu accelerators 
HMENU     ghMenu       = NULL;          // Main Menu 
HWND      ghwndMain    = NULL;          // Main Window 
HWND      ghwndMsg     = hwndNil;       // Message window 
HWND      ghwndEdit    = hwndNil;       // Edit Control 
HWND      ghwndUser    = hwndNil;       // User List 
HFONT     ghfontMsg    = hfontNil;      // Font for messages 
 
 
TCHAR gszAppTitle[]     = TEXT("NetMeeting Chat Test Application"); 
 
// string constants (no change for international) 
TCHAR gszAppClassName[] = TEXT("NMCHAT"); 
TCHAR gszAppName[]      = TEXT("NmChat"); 
 
// List column information 
 
typedef struct _tagCol { 
UINT  dwWidth; 
LPTSTR lpsz; 
} COL; 
typedef COL * LPCOL; 
 
 
// See ILV_* 
static COL _rgColMsg[] = { 
{DXP_USER,  TEXT("Name")}, 
{80,  TEXT("Time")}, 
{400, TEXT("Message")}, 
}; 
 
 
//**************************************************************************** 
// 
// BOOL FCreateMsgWindow(void) 
// 
// Create the main message listview 
// 
//**************************************************************************** 
 
BOOL FCreateMsgWindow(void) 
{ 
ghwndMsg = CreateWindow(TEXT("SysListView32"), NULL, 
WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_BORDER | LVS_REPORT, 
0, 0, 0, 0, 
ghwndMain, (HMENU) IDW_USER, ghInst, NULL); 
if (ghwndMsg == NULL) 
return FALSE; 
 
// Initialize column data 
{ 
int   iCol; 
LPCOL lpCol; 
LV_COLUMN lvc; 
 
lpCol = _rgColMsg; 
ClearStruct(&lvc); 
lvc.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT | LVCF_SUBITEM; 
lvc.fmt = LVCFMT_LEFT; 
for (iCol = 0; iCol < ARRAY_ELEMENTS(_rgColMsg); iCol++) 
{ 
lvc.iSubItem = iCol; 
lvc.cx = lpCol->dwWidth; 
lvc.pszText = lpCol->lpsz; 
if (ListView_InsertColumn(ghwndMsg, iCol, &lvc) == -1) 
return FALSE; 
lpCol++; 
} 
} 
 
return TRUE; 
} 
 
 
//**************************************************************************** 
// 
// BOOL FCreateUserList(void) 
// 
// Create a listbox for the users 
// 
//**************************************************************************** 
 
BOOL FCreateUserList(void) 
{ 
ghwndUser = CreateWindow(TEXT("SysListView32"), NULL, 
WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_BORDER | LVS_REPORT | LVS_SHOWSELALWAYS, 
0, 0, DXP_USER, 0, 
ghwndMain, (HMENU) IDW_MSG, ghInst, NULL); 
 
if (NULL == ghwndUser) 
return FALSE; 
 
// Initialize column data 
{ 
LV_COLUMN lvc; 
 
ClearStruct(&lvc); 
lvc.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT | LVCF_SUBITEM; 
lvc.fmt = LVCFMT_LEFT; 
lvc.iSubItem = 0; 
lvc.cx = DXP_USER; 
lvc.pszText = TEXT("Send To"); 
if (ListView_InsertColumn(ghwndUser, 0, &lvc) == -1) 
return FALSE; 
} 
 
return TRUE; 
} 
 
 
WNDPROC lpProcEdit = NULL; 
LRESULT FAR PASCAL SubClsEdit(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam); 
 
 
//**************************************************************************** 
// 
// LRESULT FAR PASCAL SubClsEdit(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) 
// 
//**************************************************************************** 
 
LRESULT FAR PASCAL SubClsEdit(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) 
{ 
if ((uMsg == WM_CHAR) && (VK_RETURN == wParam)) 
{ 
SendText(); 
return 0L; 
} 
 
return CallWindowProc(lpProcEdit, hwnd, uMsg, wParam, lParam); 
} 
 
 
//**************************************************************************** 
// 
// BOOL FCreateEditWindow(void) 
// 
//**************************************************************************** 
 
BOOL FCreateEditWindow(void) 
{ 
ghwndEdit = CreateWindow(TEXT("EDIT"), NULL, 
WS_CHILD | WS_VISIBLE | WS_BORDER | ES_AUTOHSCROLL, 
0, 0, 0, DYP_EDIT, 
ghwndMain, (HMENU) IDW_EDIT, ghInst, NULL); 
if (ghwndEdit == NULL) 
return FALSE; 
 
// set the font for the window 
 
lpProcEdit = (WNDPROC) GetWindowLong(ghwndEdit, GWL_WNDPROC); 
SetWindowLong(ghwndEdit, GWL_WNDPROC, (LONG)(WNDPROC) SubClsEdit); 
 
return TRUE; 
} 
 
 
//**************************************************************************** 
// 
// BOOL FInitMain(void) 
// 
// Initialize the window data and register the window class 
// 
//**************************************************************************** 
 
BOOL FInitMain(void) 
{ 
TCHAR szTitle[MAX_PATH]; 
WNDCLASS  wc; 
 
ASSERT(NULL != ghInst); 
 
ghAccelTable = LoadAccelerators(ghInst, MAKEINTRESOURCE(ID_APPACCEL)); 
 
LoadString(ghInst, IDS_APP_TITLE, szTitle, CCHMAX(szTitle)); 
 
wc.style         = CS_HREDRAW | CS_VREDRAW; 
wc.lpfnWndProc   = (WNDPROC)WndProc; 
wc.cbClsExtra    = 0; 
wc.cbWndExtra    = 0; 
wc.hInstance     = ghInst; 
wc.hIcon         = LoadIcon(ghInst, MAKEINTRESOURCE(ICO_MAIN)); 
wc.hCursor       = LoadCursor(NULL, IDC_ARROW); 
wc.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1); 
wc.lpszMenuName  = MAKEINTRESOURCE(IDM_APP); 
wc.lpszClassName = gszAppClassName; 
 
// Register the window class and return FALSE if unsuccesful. 
if (!RegisterClass(&wc)) 
return FALSE; 
 
// Create a main window for this application instance. 
ghwndMain = CreateWindow(gszAppClassName, szTitle, WS_OVERLAPPEDWINDOW, 
0, 0, 400, 300, 
NULL, NULL, ghInst, NULL); 
if (ghwndMain == NULL) 
return FALSE; 
 
ghMenu = GetMenu(ghwndMain); 
return (NULL != ghMenu); 
} 
 
 
//**************************************************************************** 
// 
// BOOL FInitApp(LPSTR lpszCmd, int nCmdShow) 
// 
// Initialize the application after checking command line, etc. 
// 
//**************************************************************************** 
 
BOOL FInitApp(LPSTR lpszCmd, int nCmdShow) 
{ 
InitCommonControls(); 
 
 if (FAILED(CoInitialize(NULL))) 
return FALSE; 
 
if (!FInitMain()) 
return FALSE; 
 
if (!FCreateMsgWindow()) 
return FALSE; 
 
if (!FCreateUserList()) 
return FALSE; 
 
if (!FCreateEditWindow()) 
return FALSE; 
 
ASSERT(NULL != ghwndMain); 
ShowWindow(ghwndMain, nCmdShow); 
UpdateWindow(ghwndMain); 
 
SetFocus(ghwndEdit); 
 
return S_OK == InitConfMgr(); 
} 
 
 
//**************************************************************************** 
// 
// VOID TerminateApp(void) 
// 
//**************************************************************************** 
 
VOID TerminateApp(void) 
{ 
// Release all objects to which this app has a reference 
FreeDataChannel(); 
FreeAllUsers(); 
FreeConference(); 
FreeConfMgr(); 
 
    // Uninitialize OLE 
    CoUninitialize(); 
} 
 
 
//**************************************************************************** 
// 
// int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hInstPrev, LPSTR  lpszCmd, int nCmdShow) 
// 
// Main Windows entrypoint 
// 
//**************************************************************************** 
 
int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hInstPrev, LPSTR  lpszCmd, int nCmdShow) 
{ 
ghInst = hInstance; 
 
if (FInitApp(lpszCmd, nCmdShow)) 
{ 
MSG  msg; 
while (GetMessage(&msg, NULL, 0, 0)) 
{ 
if (!TranslateAccelerator(msg.hwnd, ghAccelTable, &msg)) 
{ 
TranslateMessage(&msg); 
DispatchMessage(&msg); 
} 
} 
} 
 
TerminateApp(); 
 
return 0; 
}