Pawel
21st February 2010 11:42 UTC

[nsdialogs] How to display icon in 256x256 size
  Hi,
I want to use in my nsdialogs custom page, few icons.
I choose to display icons, because they are transparent.
So, here is the code I create icon and display it. Unfortunatelly, the size of icon is default, I think 32x32 (but i am not sure, maybe 16x16). The icon I use, has 128x128 size inside... How to force it to use bigger size?

   Var /Global My_Icon    

    File/oname=$PLUGINSDIRMy_Icon.ico "test\\My_Icon.ico"


>; Icon

   ${NSD_CreateIcon} 15u 40u 100% 100% ""

    Pop $My_Icon

   ${NSD_SetIcon} $My_Icon $PLUGINSDIRMy_Icon.ico $My_Icon_Handle

>...


    ${NSD_FreeIcon} $My_Icon_Handle 

>

I also tried to add some style, but no success...What am I doing wrong?

    ${NSD_AddStyle} $My_Icon ${SS_REALSIZEIMAGE} 

-Pawel

Pawel
5th March 2010 11:55 UTC

Anyone have any idea?
-Pawel

Pawel
23rd April 2010 09:39 UTC

After I talked with Anders (thanks) I think I found some solutions. I will paste it here,
maybe someone of you need it too...

So,
To display icon with big size, for example 128x128, I prepared such icon and use this code:

File/oname=$PLUGINSDIRtest.ico "test.ico"  ; Hmm, how to display slash here?

>File /oname=$PLUGINSDIRtest.bmp "test.bmp"

>Var /Global IMAGECTL

>Var /Global IMAGE 

>

; Loading transparent icon with big size!

    nsDialogs::CreateControl STATIC ${WS_VISIBLE}|${WS_CHILD}|${WS_CLIPSIBLINGS}|${SS_ICON} 0 120u 0 100% 100% ""

    Pop $IMAGECTL

    StrCpy$0 $PLUGINSDIRtest.ico

    System::Call 'user32::LoadImage(i 0, t r0, i ${IMAGE_ICON}, i 0, i 0, i ${LR_LOADFROMFILE}) i.s'

    Pop $IMAGE

    SendMessage $IMAGECTL${STM_SETIMAGE} ${IMAGE_ICON} $IMAGE 

>

And, I guess we need to free the resources...

System::Call 'gdi32:DeleteObject(i $IMAGE)' 

We can also use another method. We can use "transparent bitmap". This will display bitmap
with transparent background. Here is an example. You must use 8bpp bitmap.

; Loading Bitmap with transparent background. 8bpp only.

    nsDialogs::CreateControl STATIC ${WS_VISIBLE}|${WS_CHILD}|${WS_CLIPSIBLINGS}|${SS_BITMAP} 0 100u 20u 109u 193u ""

    Pop $IMAGECTL

    StrCpy$0 $PLUGINSDIRtest.bmp

    System::Call 'user32::LoadImage(i 0, t r0, i ${IMAGE_BITMAP}, i 0, i 0, i ${LR_LOADFROMFILE}|${LR_LOADTRANSPARENT}|${LR_LOADMAP3DCOLORS}) i.s'

    Pop $IMAGE

    SendMessage $IMAGECTL${STM_SETIMAGE} ${IMAGE_BITMAP} $IMAGE


System::Call 'gdi32:DeleteObject(i $IMAGE)' 

Try it.
If someone think it could be done another way, please share your knowledge.
-Pawel

jiake
29th April 2010 06:06 UTC

You can delete icons of all size except the 128x128 one by software such as Axialis IconWorkshop, try it.

Pawel
29th April 2010 09:57 UTC

What do you mean "Delete".
The problem is not how to delete icons, but how to display it on NSIS custom page.
-Pawel

Edit: I think I know what you mean. And it seems it work. Thanks.

ZmAn3
5th January 2011 05:09 UTC

ive been trying to use the nsdialogs code to load a icon over a background image but the icon doesnt load transparent anyone have any ideas as to why?
code for icon

 nsDialogs::CreateControl STATIC ${WS_VISIBLE}|${WS_CHILD}|${WS_CLIPSIBLINGS}|${SS_ICON} 0 10 0 100% 100% ""

    Pop $IMAGECTL

    StrCpy$0 $PLUGINSDIRwarn.ico

    System::Call 'user32::LoadImage(i 0, t r0, i ${IMAGE_ICON}, i 0, i 0, i ${LR_LOADFROMFILE}) i.s'

    Pop $IMAGE

    SendMessage $IMAGECTL${STM_SETIMAGE} ${IMAGE_ICON} $IMAGE 

>

then later i load the background image before nsDialogs::Show

"" 

>Pop $IMAGECTL


StrCpy$0 $PLUGINSDIRbackground.bmp

System::Call 'user32::LoadImage(i 0, t r0, i ${IMAGE_BITMAP}, i 0, i 0, i ${LR_LOADFROMFILE}) i.s'

>Pop $IMAGE

SendMessage $IMAGECTL${STM_SETIMAGE} ${IMAGE_BITMAP} $IMAGE

   ShowWindow $IMAGECTL${SW_HIDE}

   ShowWindow $IMAGECTL ${SW_SHOW}