Board index » cppbuilder » TListBox type speed for selection of items

2005-05-30 02:21:56 PM
cppbuilder49
Hi,
Is there a way to cotrol the type speed while looking up items in the
TListBox.
the listbox is looking for the next word wile im stil typing my privius one.
Regards
jvdn.
 

"Jochanan" < XXXX@XXXXX.COM >wrote:
before they make their way to the TTreeView. The first chance
that you have to see a keypress is in the TApplication::OnMessage
event. From here, you can monitor all Window messages sent to
your application and change them as needed.
//--- in the header -------------------------------------------
private: // User declarations
void __fastcall MyAppMessage( TMsg&, bool& );
public: // User declarations
__fastcall ~TForm1();
//--- in the unit ---------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner) : TForm(Owner)
{
Application->OnMessage = MyAppMessage;
}
//-------------------------------------------------------------
__fastcall TForm1::~TForm1()
{
Application->OnMessage = NULL;
}
//-------------------------------------------------------------
void __fastcall TForm1::MyAppMessage( TMsg &Msg, bool &Handled )
{
if( Msg.message == WM_KEYDOWN || Msg.message == WM_KEYUP )
{
if( Screen->ActiveControl == SomeForm->TreeView1 )
{
if( Msg.message == WM_KEYDOWN )
{
// buffer the keystroke found in Msg.wParam
}
Msg.wParam = NULL;
}
}
}
//-------------------------------------------------------------
Your problem now becomes how to know when to do a lookup. Look
at starting and resetting a TTimer when the WM_KEYDOWN is
detected for the control.
~ JD