message::command

This message is sent when

an item is selected from a menu,
when a control notifies its parent of an event or
when an accelerator keystroke is translated.

Parameters

parameter1

low-order part The identity of the menu item, accelerator or control window.
high-order part If the message is from a menu, this value is 1. If the message is from an accelerator this value is 0. If the message is from a control window, this part contains the notification code.

parameter2

For control windows, this parameter holds a handle of the control window.

Return

result

If a window processes this message, it should return zero.

Notes

accelerator keystrokes matching items from the system menu are translated into system command messages. all other accelerator keystrokes are translated into this message.

If an accelerator keystroke is generated from a minimized window and it matches a menu item mnemonic, no message is generated. If the accelerator keystroke matches no menu item or system menu item, this message is generated despite the window being minimized.

low-order part	The identity of the menu item, accelerator or control window.
high-order part	If the message is from a menu, this value is 1. If the message is from an accelerator this value is 0. If the message is from a control window, this part contains the notification code.