extract icon from .exe and draw it

[K8chel0fen]

I'm new to AutoIt. So thanks for any help. Is there a simple way to extract an icon from an .exe file and then draw it in my main window?

This is the code so far (out of the greater context and broken down to the main problem)

#include <WindowsConstants.au3>
#include <GUIConstantsEx.au3>
#include <WinAPIShellEx.au3>
#include <WinAPI.au3>

Global Const $iGlobalWindowWidth = 840
Global Const $iGlobalWindowHeigth = 525

Global Const $cWhite = 0xFFFFFF

Local $hGlobalWindow = GUICreate ( "Test", $iGlobalWindowWidth, $iGlobalWindowHeigth)
GUISetBkColor ( $cWhite )

$hIcon = _WinAPI_ShellExtractIcon(@systemdir & "\notepad.exe" , 0, 32, 32)
$hDC = _WinAPI_GetDC( $hGlobalWindow )
_WinAPI_DrawIconEx($hDC, 100, 100, $hIcon, 20, 20)    ; That function doesn't work like I want.

GUISetState ( @SW_SHOW, $hGlobalWindow )

While 1
    Switch GUIGetMsg()
    Case $GUI_EVENT_CLOSE
            _Exit()
    EndSwitch
WEnd

Func _Exit()
    _WinAPI_ReleaseDC($hGlobalWindow, $hDC)
    _WinAPI_DestroyIcon($hIcon)
    Exit
EndFunc   ;==>_Exit

In the end I want to extract the largest icon with the highest resolution out of the exe and draw it 20 x 20 pixel in something with a handle return. GuiCtrlCreateIcon would have been great because of its simple structure but if there's something similar I won't bother. I found nothing yet so perhaps someone had a similar problem in the past and can help me out?

[Kyan]

Usually _SendMessage is used, but there's a size difference between using _SendMessage and just GUICtrlCreateIcon   
 

#include <WindowsConstants.au3>
#include <GUIConstantsEx.au3>
#include <WinAPIShellEx.au3>
#include <WinAPI.au3>
 
Global Const $iGlobalWindowWidth = 840,  $STM_SETIMAGE = 0x0172
Global Const $iGlobalWindowHeigth = 525
 
Global Const $cWhite = 0xFFFFFF
 
Local $hGlobalWindow = GUICreate ( "Test", $iGlobalWindowWidth, $iGlobalWindowHeigth)
GUISetBkColor ( $cWhite )
 
;$hAIcon = _WinAPI_ShellExtractIcon(@systemdir & "\notepad.exe" , 0, 32, 32)
;$hDC = _WinAPI_GetDC( $hGlobalWindow )
$idIcon = GUICtrlCreateIcon(@systemdir & "\notepad.exe", 0, 50, 50, 20, 20)
$hIcon = GUICtrlGetHandle(-1)
;_WinAPI_DrawIconEx($hDC, 100, 100, $hIcon, 20, 20)    ; That function doesn't work like I want.
;_SendMessage($hIcon, $STM_SETIMAGE, 1,$hAIcon)
GUISetState ( @SW_SHOW, $hGlobalWindow )
 
While 1
    Switch GUIGetMsg()
    Case $GUI_EVENT_CLOSE
            _Exit()
    EndSwitch
WEnd
 
Func _Exit()
    ;_WinAPI_ReleaseDC($hGlobalWindow, $hDC)
    ;_WinAPI_DestroyIcon($hAIcon)
    Exit
EndFunc   ;==>_Exit

[guinness]

There is also a native version too.

[K8chel0fen]

I tested the code from Kyan and it's working fine. When I adjust the sizes like this

$hAIcon = _WinAPI_ShellExtractIcon(@systemdir & "\notepad.exe" , 0, 20, 20)

$idIcon = GUICtrlCreateIcon("", 0, 50, 50, 20, 20)

there's no difference. Thanks so far. The only thing is I wished I had more control over the choice which Icon should be extracted and not always the first one. The largest with the best quality or the smallest with best quality etc.

@guinness: Which is the native version?

Edited April 11, 2015 by K8chel0fen

[guinness]

GUICtrlSendMsg