the initial thinking plan is to prohibit browser menus from sealing a menu to save themselves, but the browser"s sandboxie mechanism should not open save permissions
and think about listening to long press events, but such inaccurate long press does not necessarily actually save
, so is there any other way to know that users have saved pictures-sharp-sharp-sharp problem description
isn't it triggered by the button event for the user to save the picture? isn't there a returned state when the picture is saved successfully?
Why is it so complicated?
I don't know what you're asking if it's not a flash of inspiration. Do you ask how to use javascript to prohibit users from taking screenshots in browsers? No, if the browser is not in focus state, the operating system will not send an interrupt to the browser. If your page is in focus status and the user presses the screenshot button, the keyCode that can detect, print screen is 44.
according to reason, there is no difference between saving and downloading. Isn't it easy to monitor downloads?
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