How can I simulate KeyDown event in Delphi

To simulate a KeyDown event in Delphi, you can use the KeyDown method of the TWinControl class. This method takes a key code as an argument and simulates pressing the key.

Here is an example of how to use the KeyDown method to simulate pressing the “A” key:

This code will simulate pressing the “A” key when the user clicks the button. Note that you need to use the key code for the key you want to simulate pressing. In this example, the key code for the “A” key is VK_A. You can find a list of key codes for various keys in the Windows unit.

It is important to note that simulating a KeyDown event will not trigger any event handlers for the key press. If you want to trigger the event handlers, you can use the PostMessage function from the Windows API to send a WM_KEYDOWN message to the control.

Here is an example of how to use the PostMessage function to trigger the event handlers for the “A” key press:

This code will send a WM_KEYDOWN message to the form, which will trigger any event handlers for the key press.