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What does the command menu option mean that the command cannot be executed currently?
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- 2019-12-19 09:23:0358830browse
The light gray command item in the command menu option indicates that the command cannot be executed currently. If an item in the menu of any software in the operating system becomes dim, it means that this function is temporarily unavailable.
The menu bar is actually a tree structure that provides function entrances for most functions of the software. After clicking, the menu items will be displayed.
The menu bar is a collection of buttons arranged in groups according to program functions. It is a horizontal bar under the title bar. The Microsoft Word2003 menu bar is located below the title bar and consists of 9 menu commands such as "File" and "View". Menus can also be created and edited directly in the resource view of VC. MFC provides the CMenu class for menu operations.
Menu is an interface that displays commands that can be executed by the system in a hierarchical manner. Generally placed at the top or bottom of the screen, almost all commands that can be used by the application can be placed.
The importance is generally from left to right, and the further to the right, the lower the importance. The level of destiny varies depending on the application. Generally, it focuses on file operation and editing functions, so it is placed on the far left, and then there are various settings and other operations to the right, and there is often help on the far right. Generally use the first button of the mouse to operate.
The instant menu (also known as the menu, context menu (Context Menu)) is different from the hierarchical menu prepared by the application. In places other than the menu bar, the menu called up by the second button of the mouse is called for "Instant Menu". Depending on the calling location, the menu content changes instantly, listing the operations that can be performed by the indicated object.
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