C builder master advanced
(1) Write a pop-up advertising killer
nxyc_twz@163.com
First, system analysis
As a software developer, it will inevitably look for information frequently, and annoying advertising is really troubled. Is there a way to automatically close these ads? The answer is yes! Maybe you will say: "There are many software online software. Just find one, don't you do it?" You said it is really good, you can use a software developer, you can't rely on others? " How do you do your own? If you don't have to dry, you must first find out the working principle of the pop-up advertising window:
1. Using your own "System Window Analyzer" (in the next phase of the development process), it is easy to find the feature of the pop-up advertising window: The window class is CabinetWClass or IEframe.
2. If you find the window class is the window of CabinetWClass or ieframe, isn't it OK to send WM_CLOSE? I can't help but happiness in my heart!
3. Use the timer timing to detect, find the WM_CLOSE message to find the eligible window.
Second, the frontier of actual combat
How do you find the window class name? This needs to use the API function:
GetWindowText: Get window text
GetWindow: get the window handle
GetClassName: Get class name
PostMessage: Send a message
SetWindowlong: Setting mode
Please consult the relevant information for specific usage.
Third, design process
1. Start C Builder 5, create a new Application, set the Form's Name to Form1, which is set to BSNOne, set the icon in the ICON of the Form.
2. Define data variables:
TRAYICON_ID = 1;
IconEvent = WM_APP 100;
TNotifyicondata Traylon;
3. Drag and drop a Timer control and a popMENU control to the form. Timer's properties: name-> Timer1, Interval-> 1000; Add three children on popmenu1: Continue -> ContinueCmd, Pausecmd-> Pause, exitcmd-> Exit.
4. Enter the application into the system tray: void trayiconcmd (void);
Trayicon.cbsize = sizeof (tnotifyicondata);
TRAYICON.HWND = HANDLE;
TRAYICON.UID = ID_TRYICON;
TRAYICON.UFLAGS = NIF_ICON | NIF_MESSAGE | NIF_TIP;
Trayicon.ucallbackMessage = iconEvent;
TRAYICON.HICON = FORM1-> icon-> Handle;
Trayicon.sztip = "Advertising Window Killer";
Shell_Notifyicon (NM_ADD, & TRAYICON);
5. Make the application exit the system tray: void trayiconexit (void);
Shell_Notifyicon (Nim_Delete, & Trayicon); 6. Enter the application directly to the system tray directly: Write the oncreate event of Form1
TRAYICONCMD (); // Install icon in the system tray
Width = 0;
SetWindowlong (Application-> Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW);
7. Uninstall the icon from the system tray: Write the onClose event of Form1
Trayiconexit ();
8. Custom message TRAYICONONCLICK:
Definition in the header file. H:
Private:
Message void __fastcall trayiconclick (tMessage & Message);
Begin_MESSAGE_MAP
Message_handler (iconEvent, TMessage, Trayiconnclick);
END_MESSAGE_MAP (TFORM)
9. The mouse click on the system tray icon, then pops up the menu:
TPOINT P;
IF (message.lparam == wm_lbuttondown ||
Message.lpram == WM_RBUTTONDOWN)
{
PopupMenu1-> popupComponent = Form1;
SetForegroundWindow (Handle);
GetCursorpos (P);
Popupmenu-> Popup (p.x, p.y);
}
10. Enumerate all sub-windows of the specified window handle: Void MenumChildWindows (HWND HAND);
CHAR TEMPSTR [255];
Bool ispopwindow = true;
HWnd h = getWindow (Hand, GW_CHILD);
While (h)
{
GetClassName (H, Tempstr, 256);
IF (! strcmp (tempstr, "workera") ||! strcmp (Tempstr, "Workerw"))))))
IF (iswindowvisible (h)) ispopwindow = false;
H = getWindow (h, gw_hwndnext);
}
IF (ISPOPWindw) PostMessage (Hand, WM_Close, 0, 0);
11. Double-click the Timer control and add its event ontimer:
CHAR TEXT [255];
HWND H: = getWindow (Handle, GW_HWndFirst);
While (h)
{
IF (GetWindowText (H, Text, 255)> 0)
IF (GetClassName (H, Text, 255)> 0)
IF (! strcmp (text, "cabinetwclass") ||! strcmp (text, "iframe")))
EnumchildWindows (h);
H = getWindow (h, gw_hwndnext);
}
12. Write a menu response event:
Continuecmd: Continue
Timer1-> enabled = true;
Pausecmd-> checked = false;
Continuecmd-> checked = true;
Pausecmd: Pause
Timer1-> enabled = false;
Pausecmd-> checked = true;
Continuecmd-> checked = false;
EXITCMD :: Exit
CLOSE ();
