1.創(chuàng)建DirectDraw對(duì)象的方法,創(chuàng)建主DirectDraw對(duì)象并使用QueryInterface()得到一個(gè)IDirectDraw7接口.
或者直接用DirectDrawCreateEx()創(chuàng)建一個(gè)DirectDraw7的接口.
HRESULT WINAPI DirectDrawCreate(GUID FAR *lpGUID,//guid of object
LPDIRECTDRAW FAR *lplpDD,//receives interface
IUnknown FAR *pUnkOuter);//com stuff
LpGUID--NULL,(視頻卡驅(qū)動(dòng)的Globally Unique Identifier)
lplpDD--返回一個(gè)DirectDraw的接口而不是DirectDraw7的接口.
pUnkOuter--NULL(always set to zero)
自行發(fā)送消息:
1.SendMessage()---send a message which is processed immediately to a window.In fact,
it calls WinProc().
LRESULT SendMessage(HWND hWnd,UINT,WPARAM,LPARAM);
2.PostMessage()---send a message to the messagequeue.just that.if it's succeed,it return a value(!0).
BOOL PostMessage(HWND hWnd,UINT Msg,WPARAM wParam,LPARAM lParam);
1.SetBkMode(hdc,TRANSPARENT);
2.FillRect(hdc,&r,(HBRUSH)GetStockObject(WHITE_BRUSH));
3.CreateSolidBrush(RGB(255,0,0));
4.wchar_t tmp[20];
GetDlgItemText(hDlg,IDC_EDIT1,tmp,20);
::wstringstream is;
is<<tmp;
is>>size;
5.InvalidateRect(hWnd,0,1);
6.DialogBox(hInst, MAKEINTRESOURCE(IDD_DIALOG1), hWnd, inputsize);
7.WM_CLOSE is sent before WM_DESTYOY.
//創(chuàng)建全屏(空白)模式窗口:
if(!(hWnd = CreateWindowEx(NULL,//extend style
WINDOW_CLASS_NAME,//class
"BX",//title
WS_POP|WS_VISIBLE,
0,0,//initial x,y
GetSystemMetrics(SM_CXSCREEN),//Initial width
GetSystemMetrics(SM_CYSCREEN),//Initial height
NULL,//handle to parent
NULL,//handle to menu
hinstance,//instance of this application
NULL)))//extra creation parms
return (0);
posted on 2008-08-25 16:05
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