141 lines
3.7 KiB
C++
141 lines
3.7 KiB
C++
/******************************Module*Header*******************************\
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* Module Name: mtkinit.cxx
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*
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* Copyright (c) 1997 Microsoft Corporation
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*
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\**************************************************************************/
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#include <stdlib.h>
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#include "mtk.hxx"
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#include "mtkwin.hxx"
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#include "mtkwproc.hxx"
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#include "mtkinit.hxx"
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SS_PAL *gpssPal = NULL;
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HBRUSH ghbrbg = (HBRUSH) 0; // global handle to background brush
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HCURSOR ghArrowCursor;
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BOOL gbMessageLoopStarted = FALSE;
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MTKWIN *gpMtkwinMain = NULL; // 'main' or root window
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// Global strings.
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#define GEN_STRING_SIZE 64
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// This windows class stuff bites
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// These 2 aren't used for now, they might be templates for later
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LPCTSTR pszMainWindowClass = TEXT("MtkMainClass"); // main class name
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LPCTSTR pszUserWindowClass = TEXT("MtkUserClass"); // user class name
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static TCHAR szClassName[5] = TEXT("0001" );
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static LPTSTR pszCurClass = szClassName;
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// forward declarations of internal fns
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/**************************************************************************\
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* GLDoScreenSave
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*
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* Runs the screen saver in the specified mode
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*
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* GL version of DoScreenSave in scrnsave.c
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*
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* Does basic init, creates initial set of windows, and starts the message
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* loop, which runs until terminated by some event.
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*
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\**************************************************************************/
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// Called by every window on creation
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BOOL
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mtk_Init( MTKWIN *pMtkwin )
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{
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static BOOL bInited = FALSE;
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if( bInited )
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return TRUE;
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// Set root window
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// !!! ATTENTION !!! this mechanism will fail when a thread destroys all windows,
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// and then creates more
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// -> use reference count in sswtable
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gpMtkwinMain = pMtkwin;
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// Initialize randomizer
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ss_RandInit();
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// Various globals
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gpssPal = NULL;
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// Create multi-purpose black bg brush
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ghbrbg = (HBRUSH) GetStockObject( BLACK_BRUSH );
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// For now (no ss) cursor is arrow
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ghArrowCursor = LoadCursor( NULL, IDC_ARROW );
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bInited = TRUE;
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return TRUE;
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}
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/**************************************************************************\
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* mtk_RegisterClass
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*
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\**************************************************************************/
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LPTSTR
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mtk_RegisterClass( WNDPROC wndProc, LPTSTR pszClass, HBRUSH hbrBg, HCURSOR hCursor )
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{
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WNDCLASS cls;
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LPTSTR pszTheClass;
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// If no class name provided, make one by pre-incrementing the current
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// class name. (Can't icrement at end of function, since class used must
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// match return value
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if( !pszClass ) {
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pszCurClass[0] += 1;
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pszTheClass = pszCurClass;
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} else {
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pszTheClass = pszClass;
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}
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cls.style = CS_VREDRAW | CS_HREDRAW;
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cls.lpfnWndProc = wndProc;
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cls.cbClsExtra = 0;
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cls.cbWndExtra = 0;
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cls.hInstance = GetModuleHandle( NULL );
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cls.hIcon = LoadIcon( NULL, IDI_APPLICATION );
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cls.hCursor = hCursor;
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cls.hbrBackground = hbrBg;
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cls.lpszMenuName = (LPTSTR)NULL;
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cls.lpszClassName = pszTheClass;
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if( ! RegisterClass(&cls) )
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return NULL;
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return pszTheClass;
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}
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#if 0
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/**************************************************************************\
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* CloseWindows
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*
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* Close down any open windows.
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*
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* This sends a WM_CLOSE message to the top-level window if it is still open. If
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* the window has any children, they are also closed. For each window, the
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* SSW destructor is called.
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\**************************************************************************/
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void
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SCRNSAVE::CloseWindows()
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{
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if( psswMain ) {
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if( psswMain->bOwnWindow )
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DestroyWindow( psswMain->hwnd );
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else
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delete psswMain;
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}
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}
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#endif
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