function to find if window is visible

[Allow2010 7]

Hello,

i sometimes have to deal with multimonitor setups. I searched the forums and found quite a lot of threads about this. Most fo them seem to complicated for what i have in mind.

When i start a program and drag it to a different monitor, and the close the program, i save the x/y coordinates of the window to start it were it was closed.

this works fine as long as i start it on the same PC setup. But when suddenly i use a pc with only one monitor i will end up with a window placed outside the visible area.

Is there an easy way to detect that? If yes, i would simply move the window to the center of the screen if it is not visible.

I tried windowgetstate, but it seems it can only detect if the state is set to hide and not if the window is off screen...

Ideas are welcome:-)

Thanks!

 

[Melba23 3,241]

Allow2010,

This thread should allow you to determine the setup with which you are working - then use WinGetPos to get the position of the GUI and then check to see if it is within the available bounds.

M23

[Allow2010 7]

thanks...i will try that!

[Allow2010 7]

Edit: i misunderstood the script :-)

Edited April 21, 2015 by Allow2010

[jguinch 411]

The script allows you to retrieve the desktop size.

Can you try with this function : just give the window title in the first parameter :

expandcollapse popup

; Returns 0 = Not visible
; Returns 1 = Fully viewable
; Returns 2 = Partially viewable
; @error = Window does not exist
Func _WinIsOnScreen($vTitle, $sText = "")
    Local $iDesktopLeft, $iDesktopTop, $iDesktopRight, $iDesktopBottom
    Local $aDesktopPos[4], $i = 0
    Local $hWnd = WinGetHandle($vTitle, $sText)
    If @error Then Return SetError(@error, 0, 0)
    
    If BitAND( WinGetState($hWnd), 32) Then Return 1 ; Window is maximized

    Local $aPos = WinGetPos($hWnd)
    If @error Then Return SetError(@error, 0, 0)

    Local $iWinLeft = $aPos[0]
    Local $iWinTop = $aPos[1]
    Local $iWinRight = $iWinLeft + $aPos[2]
    Local $iWinBottom = $iWinTop + $aPos[3]

    Local $iNbMonitors = _WinAPI_GetSystemMetrics(80)
    If $iNbMonitors = 1 Then
        $iDesktopLeft = 0
        $iDesktopTop = 0
        $iDesktopRight = _WinAPI_GetSystemMetrics(0)
        $iDesktopBottom = _WinAPI_GetSystemMetrics(1)
    Else
        $iDesktopLeft = _WinAPI_GetSystemMetrics (76)
        $iDesktopTop = _WinAPI_GetSystemMetrics (77)
        $iDesktopRight = $iDesktopLeft + _WinAPI_GetSystemMetrics (78)
        $iDesktopBottom = $iDesktopTop + _WinAPI_GetSystemMetrics (79)
    EndIf
             
    If $iWinLeft < $iDesktopLeft Or $iWinTop < $iDesktopTop Or $iWinRight > $iDesktopRight Or $iWinBottom > $iDesktopBottom Then
        If $iWinRight < $iDesktopLeft Or $iWinBottom < $iDesktopTop Or $iWinLeft > $iDesktopRight Or $iWinTop > $iDesktopBottom Then Return 0
        Return 2
    EndIf
    Return 1
EndFunc   ;==> _WinIsOnScreen

Edited April 21, 2015 by jguinch

[Allow2010 7]

can you explain this line?

If BitAND(WinGetState($hWnd), @SW_MAXIMIZE) Then Return 1

is it normal that a minimized window is visible reported as visible? Its no problem, i just have to know:-)

Edit: the function does not work.When i move the window outside the screen

WinMove("mywindow", "", 2000, 2000, Default, Default, 1)

it is still reported as visible

Edited April 21, 2015 by Allow2010

[jguinch 411]

Sorry, I didn't try with a single monitor. I edited my previous post. Can you try again ?

The line BitAND(WinGetState($hWnd), @SW_MAXIMIZE) was wrong, it's replaced by a correct line witch test of the window is maximized (returns 1 if it is)

A minimized window is not visible, so the function just return 0.

[Allow2010 7]

Hey, thanks!!

This seems to work just fine...

It should be mentioned that this may not be 100% accurate when using multiple monitors with different resolutions...or did i miss understand?

[jguinch 411]

All right, you understood. My code is just a draft, but should be adapted to take into account the possibility to have different resolutions.

[Allow2010 7]

for a draft it is quite good.-) Thanks again...

[jguinch 411]

You can also use _WinAPI_EnumDisplayMonitors to retrieve the monitor resolution and position.