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PC World Komputer 1999 January
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Main.C
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1996-07-26
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/* MAIN.C - Window Procedure for GENERIC.EXE Demo
* Copyright (C) 1991-1996 Visio Corporation. All rights reserved.
*
* Abstract
* This file implements the standard Windows message loop and window
* procedure for the GENERIC.EXE demo.
*/
#include <windows.h>
#include <ole2.h>
#if !defined (_WIN32)
#include <dispatch.h>
#endif
#include "resource.h"
int RunDemo(void);
void ShowAboutDialog(HINSTANCE);
LONG CALLBACK MainWndProc(HWND, UINT, WPARAM, LPARAM);
BOOL InitApplication(HANDLE);
BOOL InitInstance(HANDLE, int);
HANDLE stc_hInst;
/**************************************************************************
*+ WinMain
*
* The main message loop and application initialization.
*/
#ifdef __BORLANDC__
#pragma argsused
#endif
int PASCAL WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpszCmdLine,
int nCmdShow)
{
MSG msg;
HRESULT hResult;
if ( hPrevInstance || !InitApplication(hInstance) )
return (FALSE);
if ( !InitInstance(hInstance, nCmdShow) )
return (FALSE);
hResult = OleInitialize(NULL);
if (hResult != NOERROR )
return (FALSE);
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
OleUninitialize();
return (msg.wParam);
}
/**************************************************************************
*+ InitApplication
*
* One time initialization to register the window class.
*/
BOOL InitApplication(HANDLE hInstance)
{
WNDCLASS wc;
wc.style = 0;
wc.lpfnWndProc = MainWndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_DISPATCH));
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = GetStockObject(WHITE_BRUSH);
wc.lpszMenuName = "MainMenu";
wc.lpszClassName = "GenericDemo";
return (RegisterClass(&wc));
}
/**************************************************************************
*+ InitInstance
*
* Per instance initialization. Creates the frame window.
*/
BOOL InitInstance(HANDLE hInstance, int nCmdShow)
{
HWND hWnd;
/* Make window small.
*/
LONG dwBaseUnits = GetDialogBaseUnits();
int winw = (150 * LOWORD(dwBaseUnits))/4;
int winh = (50 * HIWORD(dwBaseUnits))/8;
stc_hInst = hInstance;
#ifdef _DEBUG
#define WINDOW_TITLE "Visio Automation Demo - DEBUG"
#else
#define WINDOW_TITLE "Visio Automation Demo"
#endif
hWnd = CreateWindow("GenericDemo", WINDOW_TITLE,
WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT,
winw, winh, NULL, NULL, hInstance, NULL);
if (!hWnd) return (FALSE);
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
return (TRUE);
}
/**************************************************************************
*+ MainWndProc
*
* Frame window procedure. The only special thing it does it run the
* demo when the Run Demo menu entry is selected.
*/
LONG CALLBACK MainWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_COMMAND:
switch (wParam)
{
case IDM_EXIT:
DestroyWindow(hWnd);
break;
case IDM_RUNDEMO:
RunDemo();
break;
case IDM_ABOUT:
ShowAboutDialog(stc_hInst);
break;
default:
return (DefWindowProc(hWnd, message, wParam, lParam));
}
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return (DefWindowProc(hWnd, message, wParam, lParam));
}
return 0;
}