Web JS to obtain the window button action (press Shift, Alt, Ctrl ....)

How to obtain data is basically determined from the Action event. In IE, the window object contains the event. For example: [html] & lt ;! -- Addbyoscar999 -- & gt; & lt ;! DOCTYPEHTMLPUBLIC & quot;-// W3C // DTDHTML4.0Transitional // E...

How to obtain

It is basically determined from the Action event.

 

Processing in IE
In IE, the window object contains the event. See the example below:
[Html]
 
 
 
 
New Document 
 
Script
Function showWinEvent ()
{
If (window. event. altKey)
{
Alert ("you pressed Alt Key ");
} Else if (window. event. ctrlKey)
{
Alert ("you pressed Ctrl Key ");
} Else if (window. event. shiftKey)
{
Alert ("you pressed Shift Key ");
} Else {
// Alert (window. event. button)
}
}
Script
 
 
 
 
 
 

New Document

Script
Function showWinEvent ()
{
If (window. event. altKey)
{
Alert ("you pressed Alt Key ");
} Else if (window. event. ctrlKey)
{
Alert ("you pressed Ctrl Key ");
} Else if (window. event. shiftKey)
{
Alert ("you pressed Shift Key ");
} Else {
// Alert (window. event. button)
}
}
Script

The above work can be performed in IE and Chrome, but there is a problem in firefox, the undefined error will be reported, because the window object of firefox does not contain event.

 

Firefox compatibility

[Html]
 
 
 
 
New Document 
 
Script
Function showWinEvent (evn)
{
If (evn. altKey)
{
Alert ("you pressed Alt Key ");
} Else if (evn. ctrlKey)
{
Alert ("you pressed Ctrl Key ");
} Else if (evn. shiftKey)
{
Alert ("you pressed Shift Key ");
} Else {
// Alert (window. event. button)
}
}
Script
 
 
 
 
 
 

New Document

Script
Function showWinEvent (evn)
{
If (evn. altKey)
{
Alert ("you pressed Alt Key ");
} Else if (evn. ctrlKey)
{
Alert ("you pressed Ctrl Key ");
} Else if (evn. shiftKey)
{
Alert ("you pressed Shift Key ");
} Else {
// Alert (window. event. button)
}
}
Script