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114 lines
2.3 KiB
114 lines
2.3 KiB
#include "precomp.h"
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#include "ThreadEvent.h"
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const int WM_TEP_MESSAGE = WM_USER+101;
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// static members
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BOOL ThreadEventProxy::s_bWndClassRegistered = FALSE;
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const LPTSTR ThreadEventProxy::s_szWndClassName = "NAC_TEP_HIDDENWINDOW";
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ThreadEventProxy::ThreadEventProxy(IStreamEventNotify *pNotify, HINSTANCE hInst)
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{
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WNDCLASSEX wndClass;
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if (s_bWndClassRegistered == FALSE)
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{
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ZeroMemory(&wndClass, sizeof(wndClass));
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wndClass.cbSize = sizeof(wndClass);
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wndClass.style = CS_HREDRAW | CS_VREDRAW;
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wndClass.lpfnWndProc = WndProc;
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wndClass.hInstance = hInst;
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wndClass.lpszClassName = s_szWndClassName;
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RegisterClassEx(&wndClass);
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s_bWndClassRegistered = TRUE;
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}
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m_hwnd = CreateWindow(s_szWndClassName, "Hidden Window",
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WS_OVERLAPPEDWINDOW, 0, 0, 0, 0,
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NULL,
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NULL,
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hInst,
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NULL);
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if (m_hwnd)
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SetWindowLongPtr(m_hwnd, GWLP_USERDATA, (LPARAM)this);
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m_pNotify = pNotify;
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return;
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}
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ThreadEventProxy::~ThreadEventProxy()
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{
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MSG msg;
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// just in case there is an outstanding message posted in the
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// queue for this window, clear the
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if (m_hwnd)
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{
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SetWindowLongPtr(m_hwnd, GWLP_USERDATA, 0);
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}
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while (PeekMessage(&msg, m_hwnd, 0, 0, PM_REMOVE))
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{
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;
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}
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DestroyWindow(m_hwnd);
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m_hwnd = NULL;
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}
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// static
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LPARAM ThreadEventProxy::WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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ThreadEventProxy *pTEP;
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pTEP = (ThreadEventProxy*)GetWindowLongPtr(hwnd, GWLP_USERDATA);
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if (pTEP != NULL)
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{
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switch (uMsg)
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{
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case WM_TEP_MESSAGE:
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{
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// the message codes for the stream notifcation are
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// contained
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if (pTEP->m_pNotify)
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pTEP->m_pNotify->EventNotification(HIWORD(wParam), LOWORD(wParam), HIWORD(lParam), LOWORD(lParam));
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return 0;
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}
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}
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}
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return DefWindowProc(hwnd, uMsg, wParam, lParam);
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}
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BOOL ThreadEventProxy::ThreadEvent(UINT uDirection, UINT uMediaType,
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UINT uEventCode, UINT uSubCode)
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{
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WPARAM wParam;
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LPARAM lParam;
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wParam = MAKELONG(uMediaType, uDirection);
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lParam = MAKELONG(uSubCode, uEventCode);
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if (m_hwnd)
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{
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PostMessage(m_hwnd, WM_TEP_MESSAGE, wParam, lParam);
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return TRUE;
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}
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return FALSE;
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}
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