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[C++]Refresh monitor

 
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Heartless
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PostPosted: Sun Mar 02, 2008 2:17 pm    Post subject: [C++]Refresh monitor Reply with quote
Is there a way to refresh your monitor in C++ and how?
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atom0s
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PostPosted: Sun Mar 02, 2008 2:28 pm    Post subject: Reply with quote
What do you mean? Care to explain it a little better?
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Heartless
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PostPosted: Sun Mar 02, 2008 2:34 pm    Post subject: Reply with quote
Right Click Screen -> Refresh

Can you do that in C++?
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lurc
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PostPosted: Sun Mar 02, 2008 2:39 pm    Post subject: Reply with quote
UpdateWindow( GetDesktopWindow() ); or UpdateWindow( HWND_DESKTOP );

??
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atom0s
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PostPosted: Sun Mar 02, 2008 2:42 pm    Post subject: Reply with quote
HornyAZNBoy wrote:
Right Click Screen -> Refresh

Can you do that in C++?


That would be refreshing a folder, desktop, etc. Not your monitor.

This should do the trick:

Code:
#include <windows.h>

int main()
{
   //
   // Get Desktop Handle
   //
   HWND hWndDesktop = FindWindow( "Shell_traywnd", NULL );
   if( hWndDesktop != INVALID_HANDLE_VALUE || hWndDesktop != 0 )
   {
      //
      // Redraw By Sending Icon Update Message
      //
      SendMessage( hWndDesktop, WM_SETREDRAW, (WPARAM)FALSE, (LPARAM)NULL );
      SendMessageTimeout( HWND_BROADCAST, WM_SETTINGCHANGE, SPI_SETNONCLIENTMETRICS, NULL, SMTO_ABORTIFHUNG, 100000, NULL );
      SendMessage( hWndDesktop, WM_SETREDRAW, (WPARAM)TRUE, (LPARAM)NULL );
   }

   return 0;
}

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