Determining If A Monitor Is Off

Determining If A Monitor Is Off: "AnswerDetermining If A Monitor Is Off

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Wednesday, July 18, 2007 5:03 PMstack Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals

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I've found code that will turn a monitor on and off:

Code Snippet

#include

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
// Eliminate user's interaction for 500 ms
Sleep(500);

// Turn off monitor
SendMessage(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, (LPARAM) 2);

// Turn on monitor
// SendMessage(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, (LPARAM) -1);

// Low power monitor
// SendMessage(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, (LPARAM) 1);

return 0;
}

Now I am looking for code that will tell me if a monitor is on or off. Anyone have any examples?
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Answers

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Thursday, July 19, 2007 8:10 AMBruno van Dooren Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
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I don't know. Try asking in the appropriate platform SDK nntp newsgroup

http://www.microsoft.com/communities/newsgroups/list/en-us/default.aspx



Even if you can query the monitor state, this won't tell you if the monitor itself is powered on.

At home I still use a 19' iyama crt. Windows doesn't know when I press the monitor power button.

Btw: have you tried google or www.codeproject.com ?
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Thursday, July 19, 2007 8:10 AMBruno van Dooren Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
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I don't know. Try asking in the appropriate platform SDK nntp newsgroup

http://www.microsoft.com/communities/newsgroups/list/en-us/default.aspx



Even if you can query the monitor state, this won't tell you if the monitor itself is powered on.

At home I still use a 19' iyama crt. Windows doesn't know when I press the monitor power button.

Btw: have you tried google or www.codeproject.com ?
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– Enviado usando a Barra de Ferramentas Google"