Foreground activation

[six_L]

Hi,

Foreground activation permission is like love: You can't steal it, it has to be given to you.

SetForegroundWindow.

Do you have any examples to prove it?
Thank you in advance.

Regard.

[Vortex]

Hello,

More info about the topic :

https://devblogs.microsoft.com/oldnewthing/20241128-00/?p=110586

https://devblogs.microsoft.com/oldnewthing/20090220-00/?p=19083

[six_L]

Hi,Vortex
Thank you.

I'v still not fully grasped the Blog. here the codes would prove that it has to be stolen to each other.
"1" instance:

Code Select Expand

DlgProc proc hWnd:HWND,uMsg:UINT,wParam:WPARAM,lParam:LPARAM

    mov eax,uMsg
    .if eax == WM_INITDIALOG
        invoke    LoadIcon,hInstance,ICO_MAIN
        invoke    SendMessage,hWnd,WM_SETICON,ICON_BIG,rax
       
        invoke    SetTimer,hWnd,IDC_TIMERID,3000,NULL
       
    .elseif eax == WM_COMMAND
        mov    rcx,wParam
        .if    cx == IDC_EXIT
            invoke    SendMessage,hWnd,WM_CLOSE,NULL,NULL
        .endif
    .elseif eax == WM_TIMER
       
        invoke  FindWindow,NULL,CStr("Test Foreground '2'")
        mov    Remote_hWnd,rax
        invoke  SetForegroundWindow,Remote_hWnd

    .elseif eax == WM_CLOSE
        invoke    KillTimer,hWnd,IDC_TIMERID
        invoke    EndDialog,hWnd,0
    .else
        mov rax,FALSE
        ret
    .endif
    mov rax,TRUE
    ret

DlgProc endp

WinMainCRTStartup Proc
    invoke    GetModuleHandle,NULL
    mov    hInstance,rax
    invoke    DialogBoxParam,hInstance,IDD_DIALOG,0,addr DlgProc,0
    invoke    ExitProcess,NULL
WinMainCRTStartup Endp

"2" instance:

Code Select Expand

DlgProc proc hWnd:HWND,uMsg:UINT,wParam:WPARAM,lParam:LPARAM

    mov eax,uMsg
    .if eax == WM_INITDIALOG
        invoke    LoadIcon,hInstance,ICO_MAIN
        invoke    SendMessage,hWnd,WM_SETICON,ICON_BIG,rax
        invoke    SetTimer,hWnd,IDC_TIMERID,3000,NULL

    .elseif eax == WM_COMMAND
        mov    rcx,wParam
        .if    cx == IDC_EXIT
            invoke    SendMessage,hWnd,WM_CLOSE,NULL,NULL
        .endif
    .elseif eax == WM_TIMER
       
        invoke  FindWindow,NULL,CStr("Test Foreground '1'")
        mov    Remote_hWnd,rax
        invoke  SetForegroundWindow,Remote_hWnd
    .elseif eax == WM_CLOSE
        invoke    KillTimer,hWnd,IDC_TIMERID
        invoke    EndDialog,hWnd,0
    .else
        mov rax,FALSE
        ret
    .endif
    mov rax,TRUE
    ret

DlgProc endp

WinMainCRTStartup Proc
    invoke    GetModuleHandle,NULL
    mov    hInstance,rax
    invoke    DialogBoxParam,hInstance,IDD_DIALOG,0,addr DlgProc,0
    invoke    ExitProcess,NULL
WinMainCRTStartup Endp

regard.