www.pudn.com > CDX.rar > Ex2.cpp

// ------------------------------------------------------------------------------------------ 
// CDX example 2 - Windowed applications 
// You must link to cdx.lib, ddraw.lib and dxguid.lib 
// fixed and reworked for CDX 2.3 7/1999 by Ioannis Karagiorgos, Ioannis.Karagiorgos@gmx.de 
// ------------------------------------------------------------------------------------------ 
 
#ifndef WIN32_LEAN_AND_MEAN 
#define WIN32_LEAN_AND_MEAN 
#endif 
 
#include  
#include  
#include  
 
#define CDXINCLUDEALL       // include all headers 
#include  
 
 
CDXScreen   * Screen = 0;   // The screen object, every program must have one 
                            // remember to set all CDX objects to 0 when you declare them! 
int           Toggle = 0;   // flag for the screen color 
 
#define TIMER_ID	1       // variables used for the timer 
#define TIMER_RATE	500 
 
#define NAME		"CDXExample2" 
#define TITLE		"CDX Example 2" 
 
 
 
 
// ------------------------------------------------------------------------------------------ 
// FiniApp - Destroy the CDX objects 
// ------------------------------------------------------------------------------------------ 
void FiniApp(void) 
{ 
    SAFEDELETE( Screen );       // delete the screen object 
} 
 
 
 
// ------------------------------------------------------------------------------------------ 
// WinProc, this handles all windows messages 
// ------------------------------------------------------------------------------------------ 
long PASCAL WinProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
	switch(message) 
	{ 
		case WM_TIMER:  if( Toggle )        // fill the screen depending on toggle flag 
                        {  
				            Screen->Fill(0); 
				            Toggle = 0; 
			            } 
			            else 
			            { 
				            Screen->Fill(255); 
				            Toggle = 1; 
			            } 
			            Screen->Flip();     // flip back and front buffers 
		                break; 
 
		case WM_KEYDOWN:switch(wParam) 
			            { 
				            case VK_ESCAPE: // if ESC key was hit, quit program 
					        PostMessage(hWnd, WM_CLOSE, 0, 0); 
				            break; 
			            } 
		                break; 
 
		case WM_DESTROY:    FiniApp();          // destroy all objects 
			                PostQuitMessage(0); // terminate the program 
		                    break; 
	} 
 
	return DefWindowProc(hWnd, message, wParam, lParam); 
} 
 
 
 
// ------------------------------------------------------------------------------------------ 
// InitApp - Create the window and the CDX objects 
// ------------------------------------------------------------------------------------------ 
BOOL InitApp(HINSTANCE hInst, int nCmdShow) 
{ 
	HWND hWnd; 
	WNDCLASS WndClass; 
 
	WndClass.style = CS_HREDRAW | CS_VREDRAW; 
	WndClass.lpfnWndProc = WinProc; 
	WndClass.cbClsExtra = 0; 
	WndClass.cbWndExtra = 0; 
	WndClass.hInstance = hInst; 
	WndClass.hIcon = LoadIcon(0, IDI_APPLICATION); 
	WndClass.hCursor = LoadCursor(0, IDC_ARROW); 
	WndClass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH); 
	WndClass.lpszMenuName = 0; 
	WndClass.lpszClassName = NAME; 
	RegisterClass(&WndClass); 
 
	hWnd = CreateWindowEx( 
		0, 
		NAME, 
		TITLE, 
 		WS_OVERLAPPEDWINDOW, 
		CW_USEDEFAULT, 
		CW_USEDEFAULT, 
		CW_USEDEFAULT, 
		CW_USEDEFAULT, 
		NULL, 
		NULL, 
		hInst, 
		NULL); 
 
    // when hWnd = -1 there was an error creating the main window 
    // CDXError needs a CDXScreen object, if there is none at this early 
    // program stage, pass it NULL 
	if(!hWnd)  
        CDXError( NULL , "could not create the main window" ); 
 
    // show the main window 
	ShowWindow(hWnd, nCmdShow); 
	UpdateWindow(hWnd); 
 
	// Create the CDXSreen object 
	Screen = new CDXScreen(); 
	if( FAILED(Screen->CreateWindowed( hWnd , 640 , 480 ) ) ) 
        CDXError( NULL , "could not set video mode 640x480 windowed" ); 
 
	// Create our timer for flipping the screen display 
	SetTimer(hWnd, TIMER_ID, TIMER_RATE, NULL); 
 
	return TRUE; 
} 
 
 
 
// ------------------------------------------------------------------------------------------ 
// WinMain 
// ------------------------------------------------------------------------------------------ 
int PASCAL WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, LPSTR lpCmdLine, int nCmdShow) 
{ 
	MSG msg; 
 
	if(!InitApp(hInst, nCmdShow)) 
        CDXError( NULL , "could not initialize CDX application" ); 
 
	while(1) 
	{ 
		if(PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) 
		{ 
			if(!GetMessage(&msg, NULL, 0, 0 )) return msg.wParam; 
			TranslateMessage(&msg);  
			DispatchMessage(&msg); 
		} 
		else WaitMessage(); 
	} 
}