Transparent GIF on Transparent Background

[gamepin126]

What I'm eventually trying to do is create a cross-hair overlay onto a game, windowed game. I can make the GIF transparent, that's not the issue. It's the window behind it. I pretty much just want the "red" to just be there, and nothing else. Everything I've seen so far from what I've searched (hours, and hours of searching/reading. I'm probably too fried to figure it out right now.) is how to set the gif transparent, and not the background. I've attempted GUICtrlSetBkColor($form, $GUI_BKCOLOR_TRANSPARENT) to no avail. So now I'm lost, and burnt out. Anyone think they can help me?

Attached is the image (one of 'em) I plan to use.

Opt("GUIONEVENTMODE", 1)
#include <GUIConstants.au3>

HotKeySet("{ESC}", "Ex")

$file = @ScriptDir & "\T 1px.gif"
$form = GUICreate("title", 47, 26, 30, 30,$WS_POPUP)
$pic = GUICtrlCreatePic($file, 0, 0, 47, 26, $WS_EX_LAYERED)
GUISetState(@SW_SHOW)
GUISetOnEvent($GUI_EVENT_CLOSE, "Ex")

While 1
    Sleep(100)
WEnd

Func Ex()
    Exit
EndFunc  ;==>Ex

[Zedna]

Look at my Radar project it's in my signature.

I draw the same crosshair over application by MoveTo/LineTo API functions.

It's better way.

EDIT:

here is related code snippet

Func MalujKriz() ; vzdy po zmene obrazku
    If $ZobrazitKriz = 0 Then Return
    If $pocet = 0 Then Return
    If $kriz[0] = 1 Then Return
    
    $x = $kriz[2]*$velikost
    $y = $kriz[3]*$velikost
    $pic_hWnd = ControlGetHandle("Radar","Velikost = ",$pic)
    $user_dll = DllOpen("user32.dll")
    $gdi_dll = DllOpen("gdi32.dll")
    $l_hdc = DLLCall($user_dll,"int","GetDC","hwnd",$pic_hWnd)
    $pen = DLLCall($gdi_dll,"int","CreatePen","int",0,"int",$velikost,"int",0xFF)
    $obj_orig = DLLCall($gdi_dll,"int","SelectObject","int",$l_hdc[0],"int",$pen[0])
    DLLCall($gdi_dll,"int","MoveToEx","int",$l_hdc[0],"int",$x,"int",$y-10*$velikost,"int",0)
    DLLCall($gdi_dll,"int","LineTo","int",$l_hdc[0],"int",$x,"int",$y+11*$velikost) ;vertical line
    DLLCall($gdi_dll,"int","MoveToEx","int",$l_hdc[0],"int",$x-10*$velikost,"int",$y,"int",0)
    DLLCall($gdi_dll,"int","LineTo","int",$l_hdc[0],"int",$x+11*$velikost,"int",$y) ;horizontal line
    DLLCall($gdi_dll,"int","SelectObject","int",$l_hdc[0],"int",$obj_orig[0])
    DLLCall($gdi_dll,"int","DeleteObject","int",$pen[0])
    $l_hdc = DLLCall($user_dll,"int","ReleaseDC","hwnd",$pic_hWnd,"int",$l_hdc[0])
    DllClose($gdi_dll)
    DllClose($user_dll)
EndFunc

and http://www.autoitscript.com/fileman/users/Zedna/radar.gif is screenshot

Edited June 7, 2007 by Zedna

[smashly]

Crude Example of gamepin126 crosshair as bmp using BMP2RGN.dll

(I don't know who's dll it is, maybe larry's? , sorry to the author.)

Dump dll and bmp in the same dir as the script (dll & bmp attached to bottom of the post).

expandcollapse popup

#include <GUIConstants.au3>
#Include <Misc.au3>

$Main = GUICreate('Cross', 47, 26, -1, -1, $WS_POPUP, $WS_EX_TOPMOST)
GUICtrlCreatePic(".\crossh.bmp",0,0,47,26)
GUICtrlSetState(-1, $GUI_DISABLE)
$a = DLLCall(".\BMP2RGN.dll","int","BMP2RGN", "str", ".\crossh.bmp", "int", 0, "int", 0, "int", 0)
SetWindowRgn($Main, $a[0])
GUISetState()

While 1
    $msg = GUIGetMsg()
    Select
        Case $msg = $GUI_EVENT_CLOSE
            ExitLoop
    EndSelect
    if (_IsPressed(25)) Then
        $wgp = WinGetPos($Main)
        WinMove($Main, '', $wgp[0] -3, $wgp[1])
        
    EndIf
    if (_IsPressed(26)) Then
        $wgp = WinGetPos($Main)
        WinMove($Main, '', $wgp[0], $wgp[1] -3)     
    EndIf
    if (_IsPressed(27)) Then
        $wgp = WinGetPos($Main)
        WinMove($Main, '', $wgp[0] +3, $wgp[1])
    EndIf
    if (_IsPressed(28)) Then
        $wgp = WinGetPos($Main)
        WinMove($Main, '', $wgp[0], $wgp[1] +3)
    EndIf

WEnd

Func SetWindowRgn($h_win, $rgn)
    DllCall("user32.dll", "long", "SetWindowRgn", "hwnd", $h_win, "long", $rgn, "int", 1)
EndFunc

Cheers

Edit: Arrow Keys to move it around.

Edited June 7, 2007 by smashly

[gsb]

These are fine "work arounds" and should do nicely in this case.

Bur the more general "Transparent GIF [image] on Transparent Background [GUI]" seems to be beyond the capabilities of AutoIt, no?

gsb

[gamepin126]

Thanks a lot guys. Smashly, that's exactly what I wanted. And Zedna, that's what I wanted to do initially just couldn't figure out how. Thanks for that post, I'll play with it.

[gamepin126]

Nevermind, I figured out what Velikost is.

I've figured out your post, for the most part. However I'm not sure what to put the hwnd part of the call to. Since I'm not drawing to an App, like you are. I'm drawing to my desktop.

The "$1_hdc[0]" part.

Edited June 8, 2007 by gamepin126

[gamepin126]

Alright, after about a day of looking over it, I've figured out everything in Zedna's script. (never used DllCall() before, took me a while)

Now, my only question is how do I make it so it's always on top, but I click through it? Seems to be an issue when overlaying it, it's sitting right on top of the cursor, in game, and it's making my cursor flash in and and out and sometimes focusing the script rather than keeping the game focused.

Edited June 8, 2007 by gamepin126

[gsb]

These are fine "work arounds" and should do nicely in this case.

But the more general "Transparent GIF [image] on Transparent Background [GUI]" seems to be beyond the capabilities of AutoIt, no?

So no answers I see.

Well I did find a way to have a transparent gif as an independent desktop object on the screen w/o using the "regions" approach; and is much easier/flexible I think.

It does allow the "click through" to the beneath content, so positioning is the remaining issue.

I will solve that later I think, is Sunday night just now.

gsb