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| {{PageAuthor|PeterSmith}}
| | ricrelorr |
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| == Description ==
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| '''Requires:''' [[System plug-in]].
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| Refreshes the desktop window (USER32.DLL). This is required in the Windows 'Vista'
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| operating system (as of the February 2005 'CTP' build). This script works by
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| finding the correct desktop window and then posting a F5 virtual key down&up.
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| The key sequence must use PostMessage; sending keystrokes using SendMessage
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| doesn't work.
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| This script is presented as a standalone script; you can compile it into a
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| standalone program or embed it into your script. Note that three user-defined
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| variables are used.
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| == The Script ==
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| <highlight-nsis>
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| Name RefreshDesktopWindow
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| OutFile RefreshDesktopWindow.exe
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| SilentInstall silent
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| var ProgmanHwnd
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| var ShellHwnd
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| var DesktopHwnd
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| Section ""
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| ; 256=WM_KEYDOWN
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| ; 257=WM_KEYUP
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| ; 116=VK_F5
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| FindWindow $ProgmanHwnd "Progman" "Program Manager"
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| FindWindow $ShellHwnd "SHELLDLL_DefView" "" $ProgmanHwnd 0
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| FindWindow $DesktopHwnd "SysListView32" "" $ShellHwnd 0
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| System::Call "user32.dll::PostMessage(i $DesktopHwnd, i 256, i 116, i 0)"
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| System::Call "user32.dll::PostMessage(i $DesktopHwnd, i 257, i 116, i 0x80000000)"
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| SectionEnd
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| </highlight-nsis>
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| ==== Here is something much simpler ====
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| This refreshes Windows which is just as fast and in essence the same thing as refreshing the desktop (refreshes all windows).
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| <highlight-nsis>System::Call 'Shell32::SHChangeNotify(i 0x8000000, i 0, i 0, i 0)'</highlight-nsis>
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| [[Category:System Plugin Examples]]
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