Question and Answer Database
FAQ2497C.txt How to disable a system menu item
Category :Windows API
Platform :All
Product :C++Builder ALL
Question:
How do I disable a system menu?
Answer:
Throw a TCheckBox on a TForm, double click it, and put this in the event
function...
void __fastcall TForm1::CheckBox1Click(TObject *Sender)
{
// The default menu items are SC_MOVE, SC_SIZE, and SC_CLOSE
TCheckBox * cb = dynamic_cast(Sender);
if (cb)
{
HMENU systemMenu = GetSystemMenu(Handle, FALSE);
UINT how = cb->Checked ? MF_ENABLED : MF_GRAYED;
EnableMenuItem(systemMenu, SC_CLOSE, MF_BYCOMMAND|how);
}
}
7/2/98 10:32:32 AM
Last Modified: 01-SEP-99