GrabDesktop does not grab sections of Desktop

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TheMartian
Posts: 54
Joined: Sun Feb 28, 2010 12:51 pm

GrabDesktop does not grab sections of Desktop

Post by TheMartian » Sat Apr 10, 2010 10:56 am

Hi

I was programming a small utility to grab a section of the desktop and store it as a BMP picture. For this I used the GrapDesktop function. However it seems to ignores the parameters in the table (x, y, width, height) and just copies the entire desktop whether the parameters are there or not.

I use the Hollywood display as my marker for the area to be copied because it is easy to manipulate and resize. Then I just hide the display while doing the dump. But the dump covers the entire Desktop despite the parameters set in the function call. See code below

Regards
Jesper

runflag=true

@DISPLAY {Sizeable=True, color=#YELLOW, Borderless=True}

CreateBGPic(2,640,480,#RED)

SelectAlphaChannel(2,#BGPIC)
SetAlphaIntensity(50)
Cls()
EndSelect

SetDisplayAttributes({BGPic=2})


Function KeyHandler(msg)
Switch msg.key
Case "F12"
Local x,y,w,h=GetSizeAndPosition()
HideDisplay()
GrabDesktop(10,{x,y,w,h})
ShowDisplay()
SaveBrush(10,"Ram:Screendump.bmp",nil,#IMGFMT_BMP)
Case "ESC"
runflag=false
EndSwitch
EndFunction

Function GetSizeAndPosition()
LOCAL x,y,w,h
x=GetAttribute(#DISPLAY,1,#ATTRXPOS)
y=GetAttribute(#DISPLAY,1,#ATTRYPOS)
w=GetAttribute(#DISPLAY,1,#ATTRWIDTH)
h=GetAttribute(#DISPLAY,1,#ATTRHEIGHT)
Return(x,y,w,h)
EndFunction

InstallEventHandler({OnKeyDown=KeyHandler})

while runflag=true
waitevent
wend

end

User avatar
TheMartian
Posts: 54
Joined: Sun Feb 28, 2010 12:51 pm

Re: GrabDesktop does not grab sections of Desktop

Post by TheMartian » Sat Apr 10, 2010 11:00 am

Hi again

Ouppps - SOrry. Just got it... :lol:


I need to write it like this:

GrabDesktop(10,{x=x,y=y,width=w,height=h})

So - no problem after all.

regards
Jesper

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