I have problem with system message-handling. I need to capture mouse and keyboards events in my application. I also need to know to which window these events refer to. What I can't do is to modify the application itself.
I tried to use Application.AddMessageFilter method, but I need to call it in the context of every newly created thread. Is there a way to find out when new threads are created?
I also tried to use some kind of system hooks. I install procedures (e.g. JournalRecordProc or GetMsgProc) and use callback function in managed code. I retrieve some events but after some time an exception is thrown in my application:
Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object. at System.Windows.Forms.UnsafeNativeMethods.GetMessageW(MSG& msg, HandleRef h Wnd, Int32 uMsgFilterMin, Int32 uMsgFilterMax) at System.Windows.Forms.ComponentManager.System.Windows.Forms.UnsafeNativeMet hods+IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, In t32 pvLoopData) at System.Windows.Forms.ThreadContext.RunMessageLoopInner(Int32 reason, Appli cationContext context) at System.Windows.Forms.ThreadContext.RunMessageLoop(Int32 reason, Applicatio nContext context) at System.Windows.Forms.Application.Run(Form mainForm) at Test.MyClass.Main(String[] args) in c:\home\krzycho\test\MyClass.cs:line 30
Does anyone know what can be wrong?
-- Krzysztof Rajda mailto:[EMAIL PROTECTED] UIN 63696632 GG 255637 A wise man changes his mind, a fool never will...
