pic paint issue

[Sundance]

Hiho,

i have a little problem using the AutoIt3Wrapper in combination with the _ResourceSetImageToCtrl command.

When i use a 32bit BMP file with given transparency and paint on top of a background the transparency ist set and everything looks fine.

When i to again the _ResourceSetImageToCtrl command (just say i want to change the style of the button) it only paints the pic over the background and over the allready shown pic. It seems that the pic is stamped on top of the background and it's then like one layer.

Here you can see my little test script

expandcollapse popup

Opt('ExpandEnvStrings', 1)
 
 #AutoIt3Wrapper_UseUpx=n
 #AutoIt3Wrapper_Run_After=ResHacker.exe -add %out%, %out%, "bin.bmp", bitmap, bin_BMP, 0
 #AutoIt3Wrapper_Run_After=upx.exe --best --compress-resources=1 "%out%"
;
;
; TestGui für DuoCon mit Hilfe einer Toolbar
;
;
;~ #include <GuiToolbar.au3>
 #include <GuiConstantsEx.au3>
 #include <WindowsConstants.au3>
 #include <Constants.au3>
 #include <resources.au3>
 Opt('MustDeclareVars', 1)
 Global $i
 
 Global $hGUI; handle des GUIs
 Global $hBackground; handle jpg for background
 Global $hPic; handle des pics
 
 $hGUI = GUICreate("wrong transparency effect", 220, 100, 200, 209)
 
 $hBackground = GUICtrlCreatePic("Background.JPG", 0, 0, 220, 100, BitOR($WS_GROUP, $WS_CLIPSIBLINGS), $WS_EX_LAYERED)
 GUICtrlSetState($hBackground, $GUI_DISABLE)
 
 $hPic = GUICtrlCreatePic("", 100, 10, 48, 48, -1, $WS_EX_TRANSPARENT)
 _ResourceSetImageToCtrl($hPic, "bin_BMP", $RT_BITMAP)
 GUISetState(@SW_SHOW)
 
 Sleep(1000)
 
 For $i = 1 To 10 Step 1
     _ResourceSetImageToCtrl($hPic, "bin_BMP", $RT_BITMAP)
     Sleep(1000)
 Next
 
 MsgBox(0, "finished", "finished")
 Exit

The attachment shows you a bin drawn 4 times on top of a background. You can see that everytime the bin gets darker and the transparency will get lost ..

Has somebody a little hint or trick for me to solve the problem?

greetz

Sundance

bin.bmp

Edited October 24, 2008 by Sundance

[martin]

This is a Windows problem and not to do with Zedna's UDF I think. If you force the window to be redrawn, say by dragging it so that the bin is off-screen and then drag it back into view, the bin is shown correctly.

One way to fix it is to get Windows to redraw just the area of the windon occupied by the bin like this.

expandcollapse popup

#AutoIt3Wrapper_UseUpx=n
#AutoIt3Wrapper_Run_After=ResHacker.exe -add %out%, %out%, "bin.bmp", bitmap, bin_BMP, 0
#AutoIt3Wrapper_Run_After=upx.exe --best --compress-resources=1 "%out%"

Opt('ExpandEnvStrings', 1)

;
;
; TestGui für DuoCon mit Hilfe einer Toolbar
;
;
;~ #include <GuiToolbar.au3>
#include <GuiConstantsEx.au3>
#include <WindowsConstants.au3>
#include <Constants.au3>
#include <resources.au3>
#include <staticconstants.au3>
Opt('MustDeclareVars', 1)
Global $i

Global $hGUI; handle des GUIs
Global $hBackground; handle jpg for background
Global $hPic; handle des pics
Global $stRect;structure for the rectangle around the bin

$hGUI = GUICreate("wrong transparency effect", 220, 100, 200, 209)
                                                                     
$hBackground = GUICtrlCreatePic("resource_data\Background.JPG", 0, 0, 220, 100, BitOR($WS_GROUP, $WS_CLIPSIBLINGS), $WS_EX_LAYERED)
GUICtrlSetState($hBackground, $GUI_DISABLE)

$hPic = GUICtrlCreatePic("", 100, 10, 48, 48, -1, $WS_EX_TRANSPARENT)
_ResourceSetImageToCtrl($hPic, "bin_BMP", $RT_BITMAP)
GUISetState(@SW_SHOW)

Sleep(1000)
;create the struct giving the rect around the bin
$stRect = dllstructcreate("int;int;int;int")
DllStructSetData($stRect,1,100);top x coord
DllStructSetData($stRect,2,10);top y
DllStructSetData($stRect,3,124);bottom x<--I have set only half the width of the bin so you can see the difference
DllStructSetData($stRect,4,58);bottom y
For $i = 1 To 10 Step 1
    _ResourceSetImageToCtrl($hPic, "bin_BMP", $RT_BITMAP)
    DllCall("user32.dll", "int", "InvalidateRect", "hwnd", $hGUI, "ptr", dllstructgetptr($stRect), "int", 1)
     Sleep(1000)
Next

MsgBox(0, "finished", "finished")
Exit

Edited October 24, 2008 by martin

[Sundance]

Hi martin,

thx ! I will try this till monday and will report back.

But how the hell do you know such things?

greetz

Sundance

[martin]

Hi martin,

thx ! I will try this till monday and will report back.

greetz

Sundance

I think it will work.

But how the hell do you know such things?

Well I don't know so much and I often wonder the same thing about other people. I remember one of my first jobs (nothing to do with software) and I thought my boss was realy clever. After I had worked for him for a few years I realized he wasn't so clever he just had done some things before and new the answers. Since then I realized that intelligence is no competion for knowledge but knowledge can look like intelligence.

[Sundance]

Hi Martin,

i think you're right. I made the same experience with a lot of people. The older you get the more you know that youreself are not that dump and that the others mostly only blind yourself with big words... :-)

So, now back to my transparency problem:

The transparency itself works now like a charme but when you watch the gui under a rdp session the transparency is lost. I never saw such a problem before (there aren't many guis with transparency i guess). Has somebody a hint what this could be or is this a windows problem? When i use ultravnc the gui shows normal. There must be some kind of information wich the rdp protocoll can't catch. I've tried it using 32bit and to disable the bitmap buffering but no help. I attached again the little bin . This time showing it under the rdp session.

greetz and hopefully thx in advance

Sundance

[wraithdu]

I'd guess that RDP doesn't support alpha blending. But don't quote me on that...

[Sundance]

I'd guess that RDP doesn't support alpha blending. But don't quote me on that...

The windows standard is set at maximum of 16bit. Then you won't have the alpha channel, thats right. But with the help of gpedit.msc you can deactivate the limitation and set it up to 24bit. Then you can display alphachannels...

But the 24bit way won't help...

Edited November 4, 2008 by Sundance