如何用纯API函数使用flash.ocx?
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不过用 atl 真的很简单,呵呵。==================== code ======================// Thanks to Masterz
#include "stdafx.h"
#include <commdlg.h>#include "resource.h"#define MAX_LOADSTRING 100
#import "c:\winnt\system32\macromed\flash\flash.ocx"
#include <atlbase.h>
CComModule _Module;
#include <atlwin.h>
#pragma comment(lib,"atl")
#define ODS(x) OutputDebugString(x)// Global Variables:
HINSTANCE hInst; // current instance
TCHAR szTitle[MAX_LOADSTRING]; // The title bar text
TCHAR szWindowClass[MAX_LOADSTRING]; // The title bar textCAxWindow m_container;
using namespace ShockwaveFlashObjects;
IShockwaveFlash* shwaveflash;// Foward 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);int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR 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_TEST_SDK_COM, szWindowClass, MAX_LOADSTRING);
MyRegisterClass(hInstance); CoInitialize(NULL); // Perform application initialization:
if (!InitInstance (hInstance, nCmdShow))
{
return FALSE;
} hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_TEST_SDK_COM); // Main message loop:
while (GetMessage(&msg, NULL, 0, 0))
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
} CoUninitialize(); return msg.wParam;
}//
// FUNCTION: MyRegisterClass()
//
// PURPOSE: Registers the window class.
//
// COMMENTS:
//
// This function and its usage is 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_TEST_SDK_COM);
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = (LPCSTR)IDC_TEST_SDK_COM;
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 hInstance, int nCmdShow)
{
HWND hWnd; hInst = hInstance; // Store instance handle in our global variable AtlAxWinInit(); hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL); if (!hWnd)
{
return FALSE;
} 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
//
//
HWND heditfilepath;LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent;
PAINTSTRUCT ps;
HDC hdc;
TCHAR szHello[MAX_LOADSTRING];
wsprintf(szHello,"use flash control in sdk");
RECT rc; switch (message)
{
case WM_CREATE:
GetClientRect(hWnd, &rc );
m_container.Create( hWnd, rc, LPCTSTR("ShockwaveFlash.ShockwaveFlash.1"), WS_CHILD|WS_VISIBLE);//create a browser control
m_container.QueryControl( __uuidof(IShockwaveFlash), reinterpret_cast<void**>(&shwaveflash) );
break;
case WM_SIZING:
GetClientRect(hWnd, &rc );
rc.top = (rc.bottom+rc.top)/2;
m_container.MoveWindow(&rc,true);
break;
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
// Parse the menu selections:
switch (wmId)
{
//case 0x100:
case IDM_ABOUT:
{
ODS("Start Flash\n");
char buf[256];
GetWindowText(heditfilepath,buf,255);
_bstr_t bstr("D:\\firstrun.swf");
ODS(buf);
//bstr=_bstr_t("c:\\2.1.swf");
shwaveflash->put_Movie(bstr); // you have to change the path here
shwaveflash->Play();
}
break; // 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...
RECT rt;
GetClientRect(hWnd, &rt);
DrawText(hdc, szHello, strlen(szHello), &rt, DT_CENTER);
EndPaint(hWnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}// Mesage 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;
}
com的优越就不多说,使用atl开发com方便而快捷,并且具有size小,dependency少的特点。vc++的import 编译支持更是对com开发的巨大支持。闲话休说,这就开始吧。
一.flash组件
1.atl com appwizard创建新项目"atlflash",选择dll类型。
2.加入atl object "flash"
insert -> new atl object
选择object中的simple object,
short name:“flash”
3.接口添加method “play”
参数为:[in]bstr bstrfile,[in]long hinstance,[in]long hwnd
4.在cflash类中加入:
private:
hwnd m_hwnd;//视频窗口句柄
5. 实现play方法。
stdmethodimp cflash::play(bstr bstrfile, long hinstance, long hwnd)
{
try{
m_hmciwnd=(hwnd)hwnd;
_bstr_t file(bstrfile);
m_hmciwnd=::mciwndcreate((hwnd)hwnd,(hinstance)hinstance,
ws_popup¦ws_visible¦
mciwndf_noplaybar¦
mciwndf_nomenu,
(char *)file); rect rect;
int sx,sy;
::getwindowrect(m_hmciwnd,&rect);
sx=(::getsystemmetrics(sm_cxscreen)
-rect.right+rect.left)/2;
sy=(::getsystemmetrics(sm_cyscreen)
-rect.bottom+rect.top)/2;
//窗口居中
::setwindowpos(m_hmciwnd,hwnd_topmost,sx,
sy,0,0,swp_showwindow¦swp_nosize);
g_nlength=mciwndgetlength(m_hmciwnd);
mciwndplay(m_hmciwnd);
settimer(m_hmciwnd,1,50,timerproc);
}catch(...)
{
atltrace("error:%ul",::getlasterror());
}
return s_ok;
}
6.flash.cpp中实现timerproc,用于关闭视频窗口。
long g_nlength;
void callback timerproc(
hwnd hwnd, // handle of window for timer messages
uint umsg, // wm_timer message
uint idevent, // timer identifier
dword dwtime // current system time
)
{
long nlength;
bool bescape=::getkeystate(vk_escape)&0x0100;
nlength=mciwndgetposition(hwnd);
//视频放完,或点击esc键,关闭视频窗口
if((nlength>=g_nlength)¦¦(bescape)){
killtimer(hwnd,idevent);
mciwndend(hwnd);
mciwndclose(hwnd);
mciwnddestroy(hwnd);
}
};
7.stdafx.h中加入
#include <vwf.h>
项目设置中加入“vwf32.lib”库,
打开项目设置中c++,c++language中的enable error handling
编译,一切ok。
二,组件的使用。
1.创建一个mdi或sdi项目"flashclient"
2.stdafx.h中加入
#import “atlflash.dll” no_namespace
flashcient.cpp中加入
struct _initcom{
_initcom(){::coinitialize(null);}
~_initcom(){::couninitialize(); }
}__initcom;
3.cflashclientview加入
private:
iflashptr pflashserver;
4.cflashclent::oninitialupdate()加入
_bstr_t file("sample.avi");
pflashserver->play( file,(long)::afxgetinstancehandle(),(long)this->getsafehwnd());
5.编译,一切ok。
我自带了flash.ocx,行么?想不让程序弹出"***"没有注册的对话框?
类似DLL一样。
3ks!