looking for a program

[ChimpFace9000]

I need a program that can block messages from going to a certain window, or something similar to that. Anything would help.

[Vlatko]

You can make your own program. Use a system hook to change or block the message going to a specific window. I don't have an example currently but here is a little help from MSDN

GetMsgProc
The GetMsgProc function is an application-defined or library-defined callback function used with the SetWindowsHookEx function. The system calls this function whenever theGetMessage function has retrieved a message from an application message queue. Before passing the retrieved message to the destination window procedure, the system passes the message to the hook procedure.

The HOOKPROC type defines a pointer to this callback function. GetMsgProc is a placeholder for the application-defined or library-defined function name.

LRESULT CALLBACK GetMsgProc(
int code, // hook code
WPARAM wParam, // removal flag
LPARAM lParam // address of structure with message
);

Parameters
code
Specifies whether the hook procedure must process the message. If code is HC_ACTION, the hook procedure must process the message. If code is less than zero, the hook procedure must pass the message to the CallNextHookEx function without further processing and should return the value returned by CallNextHookEx.
wParam
Specifies whether the message has been removed from the queue. This parameter can be one of the following values: Value Meaning
PM_NOREMOVE Specifies that the message has not been removed from the queue. (An application called thePeekMessage function, specifying the PM_NOREMOVE flag.)
PM_REMOVE Specifies that the message has been removed from the queue. (An application calledGetMessage, or it called thePeekMessage function, specifying the PM_REMOVE flag.)


lParam
Pointer to anMSG structure that contains details about the message.
Return Values
If nCode is less than zero, the hook procedure must return the value returned by CallNextHookEx.

If nCode is greater than or equal to zero, it is highly recommended that you call CallNextHookEx and return the value it returns; otherwise, other applications that have installed WH_GETMESSAGE hooks will not receive hook notifications and may behave incorrectly as a result. If the hook procedure does not call CallNextHookEx, the return value should be zero.

Remarks
The GetMsgProc hook procedure can examine or modify the message. After the hook procedure returns control to the system, theGetMessage function returns the message, along with any modifications, to the application that originally called it.

An application installs this hook procedure by specifying the WH_GETMESSAGE hook type and the address of the hook procedure in a call to the SetWindowsHookEx function.


You should use WH_GETMESSAGE in the SetWindowsHookEx API.