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c#winformskeyboard-shortcuts
Zeno
Zeno

Reputation: 591

How do I show a hint on buttons has a keyboard shortcut?

I am working on a C# WinForm application in Visual Studio 2008. I have added keyboard shortcuts to some of the buttons, which triggers a button click (CTRL + R, CTRL B and so on...), by overriding ProcessCmdKey.

When the user press and hold the CTRL key I want to show a hint, tooltip or something next to the button with the shortcut text ("CTRL + R") so the user can see which buttons that has a shortcut and what the combination is.

Does anyone have any other suggestion on how to solve this issue?

Upvotes: 1

Views: 1714

Answers (2)

Zeno
Zeno

Reputation: 591

I solved this by creating a WPF control that looks similar to a standard tooltip (small box with a label). I then did an override on ProcessCmdKey and OnKeyUp on my form to listen to CTRL key down and key up.

When the user presses and holds down the CTRL key I loop through all my controls that has a shortcut and creates a WPF control on top of that control. For each WPF control I set the corresponding shortcut text. When the CTRL key is released I remove all WPF controls in OnKeyUp.

Upvotes: 0

Nikhil Agrawal
Nikhil Agrawal

Reputation: 48568

That thing is possible with & in Caption. When user presses Alt Key, character after & in caption of button become Underlined and when user presses that underline character key. click event of button gets fired.

(Sorry forgotting term for this).

Upvotes: 1

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