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E1M1

How to modify this function for full screenmode?

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E1M1

That's function what I want to modify for fullscreen mode.

I added this line Local Const $CDS_FULLSCREEN = 0x00000004

And replaced DllStructSetData($DEVMODE, 2, BitOR($DM_PELSWIDTH, $DM_PELSHEIGHT, $DM_BITSPERPEL, $DM_DISPLAYFREQUENCY), 5) with DllStructSetData($DEVMODE, 2, BitOR($DM_PELSWIDTH, $DM_PELSHEIGHT, $DM_BITSPERPEL, $DM_DISPLAYFREQUENCY,$CDS_FULLSCREEN), 5)

But it still don't go fullscreen mode. I need to somehow pass $CDS_FULLSCREEN flag to ChangeDisplaySettings.

By fulscreen I don't want just 640x480, I want real full screen like games have. With out $CDS_FULLSCREEN flag, desktop resoluition wont got back to it's original if program gets killed or if users presses alt + tab, also setting resolution to 640x480 with out $CDS_FULLSCREEN will get desktop icons placement messed up (games never do that).

I want do similar thing in autoit

DEVMODE dmScreenSettings;                               
        memset(&dmScreenSettings,0,sizeof(dmScreenSettings));   
        dmScreenSettings.dmSize=sizeof(dmScreenSettings);       
        dmScreenSettings.dmPelsWidth    = width;                
        dmScreenSettings.dmPelsHeight   = height;               
        dmScreenSettings.dmBitsPerPel   = bits;                 
        dmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;

        
        if (ChangeDisplaySettings(&dmScreenSettings,CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL)

and this

ChangeDisplaySettings(NULL,0);

Func _ChangeScreenRes($i_Width = @DesktopWidth, $i_Height = @DesktopHeight, $i_BitsPP = @DesktopDepth, $i_RefreshRate = @DesktopRefresh)
    Local Const $DM_PELSWIDTH = 0x00080000
    Local Const $DM_PELSHEIGHT = 0x00100000
    Local Const $DM_BITSPERPEL = 0x00040000
    Local Const $DM_DISPLAYFREQUENCY = 0x00400000
    Local Const $CDS_TEST = 0x00000002
    Local Const $CDS_UPDATEREGISTRY = 0x00000001
    Local Const $DISP_CHANGE_RESTART = 1
    Local Const $DISP_CHANGE_SUCCESSFUL = 0
    Local Const $HWND_BROADCAST = 0xffff
    Local Const $WM_DISPLAYCHANGE = 0x007E
    Local Const $CDS_FULLSCREEN = 0x00000004
    If $i_Width = "" Or $i_Width = -1 Then $i_Width = @DesktopWidth ; default to current setting
    If $i_Height = "" Or $i_Height = -1 Then $i_Height = @DesktopHeight ; default to current setting
    If $i_BitsPP = "" Or $i_BitsPP = -1 Then $i_BitsPP = @DesktopDepth ; default to current setting
    If $i_RefreshRate = "" Or $i_RefreshRate = -1 Then $i_RefreshRate = @DesktopRefresh ; default to current setting
    Local $DEVMODE = DllStructCreate("byte[32];int[10];byte[32];int[6]")
    Local $B = DllCall("user32.dll", "int", "EnumDisplaySettings", "ptr", 0, "long", 0, "ptr", DllStructGetPtr($DEVMODE))
    If @error Then
        $B = 0
        SetError(1)
        Return $B
    Else
        $B = $B[0]
    EndIf
    If $B <> 0 Then
        DllStructSetData($DEVMODE, 2, BitOR($DM_PELSWIDTH, $DM_PELSHEIGHT, $DM_BITSPERPEL, $DM_DISPLAYFREQUENCY,$CDS_FULLSCREEN), 5)
        DllStructSetData($DEVMODE, 4, $i_Width, 2)
        DllStructSetData($DEVMODE, 4, $i_Height, 3)
        DllStructSetData($DEVMODE, 4, $i_BitsPP, 1)
        DllStructSetData($DEVMODE, 4, $i_RefreshRate, 5)
        $B = DllCall("user32.dll", "int", "ChangeDisplaySettings", "ptr", DllStructGetPtr($DEVMODE), "int", $CDS_TEST)
        If @error Then
            $B = -1
        Else
            $B = $B[0]
        EndIf
        Select
            Case $B = $DISP_CHANGE_RESTART
                $DEVMODE = ""
                Return 2
            Case $B = $DISP_CHANGE_SUCCESSFUL
                DllCall("user32.dll", "int", "ChangeDisplaySettings", "ptr", DllStructGetPtr($DEVMODE), "int", $CDS_UPDATEREGISTRY)
                DllCall("user32.dll", "int", "SendMessage", "hwnd", $HWND_BROADCAST, "int", $WM_DISPLAYCHANGE, _
                        "int", $i_BitsPP, "int", $i_Height * 2 ^ 16 + $i_Width)
                $DEVMODE = ""
                Return 1
            Case Else
                $DEVMODE = ""
                SetError(1)
                Return $B
        EndSelect
    EndIf
EndFunc   ;==>_ChangeScreenRes

edited

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