// DirectDrawTest.cpp : Defines the entry point for the application.
//
#include "stdafx.h"
#include "DirectDrawTest.h"
#define MAX_LOADSTRING 100
// Global Variables:
HINSTANCE hInst; // current instance
TCHAR szTitle[MAX_LOADSTRING]; // The title bar text
TCHAR szWindowClass[MAX_LOADSTRING]; // the main window class name
DDSURFACEDESC ddsd;
DDSCAPS ddscaps;
LPDIRECTDRAW7 g_pDD = NULL;
LPDIRECTDRAWSURFACE7 g_pDDSFront = NULL;
LPDIRECTDRAWSURFACE7 g_pDDSBack = NULL;
HWND g_hMainWnd;
// Forward declarations of functions included in this code module:
ATOM MyRegisterClass(HINSTANCE hInstance);
BOOL InitInstance(HINSTANCE, int);
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK About(HWND, UINT, WPARAM, LPARAM);
void DDInit()
{
DDSURFACEDESC2 ddsd;
DDSCAPS2 ddscaps;
HRESULT hRet;
hRet = DirectDrawCreateEx(NULL, (VOID**)&g_pDD, IID_IDirectDraw7, NULL);
if (hRet != DD_OK) exit(1);
hRet = g_pDD->SetCooperativeLevel(g_hMainWnd, DDSCL_EXCLUSIVE | DDSCL_FULLSCREEN);
if (hRet != DD_OK) exit(2);
hRet = g_pDD->SetDisplayMode(640,480,16,0,0);
if (hRet != DD_OK) exit(3);
ZeroMemory(&ddsd, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE | DDSCAPS_FLIP |
DDSCAPS_COMPLEX;
ddsd.dwBackBufferCount = 1;
hRet = g_pDD->CreateSurface(&ddsd, &g_pDDSFront, NULL);
if (hRet != DD_OK) exit(4);
ZeroMemory(&ddscaps, sizeof(ddscaps));
ddscaps.dwCaps = DDSCAPS_BACKBUFFER;
hRet = g_pDDSFront->GetAttachedSurface(&ddscaps, &g_pDDSBack);
if (hRet != DD_OK) exit(5);
}
void DDClose()
{
g_pDDSBack->Release();
g_pDDSFront->Release();
g_pDD->Release();
}
int APIENTRY _tWinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
// TODO: Place code here.
MSG msg;
HACCEL hAccelTable;
// Initialize global strings
LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadString(hInstance, IDC_DIRECTDRAWTEST, szWindowClass, MAX_LOADSTRING);
MyRegisterClass(hInstance);
// Perform application initialization:
if (!InitInstance (hInstance, nCmdShow))
{
return FALSE;
}
hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_DIRECTDRAWTEST);
// Main message loop:
while (GetMessage(&msg, NULL, 0, 0))
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
DDClose();
return (int) msg.wParam;
}
//
// FUNCTION: MyRegisterClass()
//
// PURPOSE: Registers the window class.
//
// COMMENTS:
//
// This function and its usage are only necessary if you want this code
// to be compatible with Win32 systems prior to the ''RegisterClassEx''
// function that was added to Windows 95. It is important to call this function
// so that the application will get ''well formed'' small icons associated
// with it.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = (WNDPROC)WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, (LPCTSTR)IDI_DIRECTDRAWTEST);
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = (LPCTSTR)IDC_DIRECTDRAWTEST;
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);
return RegisterClassEx(&wcex);
}
//
// FUNCTION: InitInstance(HANDLE, int)
//
// PURPOSE: Saves instance handle and creates main window
//
// COMMENTS:
//
// In this function, we save the instance handle in a global variable and
// create and display the main program window.
//
BOOL InitInstance(HINSTANCE g_hInst, int nCmdShow)
{
HWND hWnd;
WNDCLASS wc;
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = g_hInst;
wc.hIcon = LoadIcon(g_hInst, IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH) GetStockObject(BLACK_BRUSH);
wc.lpszMenuName = TEXT("");
wc.lpszClassName = TEXT("Basic DD");
RegisterClass(&wc);
hInst = g_hInst; // Store instance handle in our global variable
hWnd = CreateWindow(szWindowClass, szTitle, //WS_OVERLAPPEDWINDOW
WS_POPUP,
CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, g_hInst, NULL);
if (!hWnd)
{
return FALSE;
}
g_hMainWnd = hWnd;
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
return TRUE;
}
//
// FUNCTION: WndProc(HWND, unsigned, WORD, LONG)
//
// PURPOSE: Processes messages for the main window.
//
// WM_COMMAND - process the application menu
// WM_PAINT - Paint the main window
// WM_DESTROY - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent;
PAINTSTRUCT ps;
HDC hdc;
switch (message)
{
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
// Parse the menu selections:
switch (wmId)
{
case IDM_ABOUT:
DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
break;
case IDM_EXIT:
DestroyWindow(hWnd);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
// TODO: Add any drawing code here...
EndPaint(hWnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
case WM_KEYDOWN:
if (wParam = VK_ESCAPE)
{
PostQuitMessage(0);
return 0;
}
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
// Message handler for about box.
LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_INITDIALOG:
return TRUE;
case WM_COMMAND:
if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
{
EndDialog(hDlg, LOWORD(wParam));
return TRUE;
}
break;
}
return FALSE;
}
please help - getting window, want fullscreen
I have typed in two programs, each one in direct draw following
someone else''s code and each one is supposed to switch to
full screen direct draw mode. I am getting a window instead of
a blank/black full screen. It is switching to 640*480 mode,
though, and everything compiles fine. Can anyone help me here?
I am using direct draw 9 sdk and visual studio .net (C++)
- a windows application.
Ok, now I took a little time to check out your code... and it seems... here are a couple of things I noticed, and one which explains clearly why it''s not working:
1. you don''t call your DDInit() function at all, if I''m not mistaken! That would, of course, mean you''re not initializing ddraw at all.
2. You are defining a window class twice, why?
3. If you press *ANY* key, your app should exit, because you only put one "equality" sign in your WM_KEYDOWN event, meaning that: wParam = VK_ESCAPE will always be true, you should''ve written wParam == VK_ESCAPE.
Hope this helps.
1. you don''t call your DDInit() function at all, if I''m not mistaken! That would, of course, mean you''re not initializing ddraw at all.
2. You are defining a window class twice, why?
3. If you press *ANY* key, your app should exit, because you only put one "equality" sign in your WM_KEYDOWN event, meaning that: wParam = VK_ESCAPE will always be true, you should''ve written wParam == VK_ESCAPE.
Hope this helps.
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