如何在 wxWidgets C++ 中禁用 wxTextCtrl 小部件？

Question

I'm writing a wxWidgets program in C++. It has several single line wxTextCtrls in it and I need to disable them so the user cannot enter text in them. Later, when a menu item is clicked, I want to enable them again. How do I do this?

Answer 1

Since wxTextCtrl is a subclass of wxWindow , it contains (probably overridden) virtual method Enable of wxWindow , documentation for which can be found here and which controls whether the window is enabled for user input according to its boolean argument (which defaults to true - enable input). Also, there is a handy non-virtual Disable method, which is defined to be equivalent to Enable(false) .

You can use it like this to disable text control (assuming you save pointer to your wxTextCtrl instance in a m_pTextCtrl member of your window class):

m_pTextCtrl = new wxTextCtrl(...);
// ...
m_pTextCtrl->Disable();

and like this to enable it in your menu item event handler:

m_pTextCtrl->Enable();