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Edge HMI

SendKeyObject

  • Last UpdatedOct 29, 2026
  • 3 minute read

The function SendKeyObject sends a key event code to objects in the currently displayed project screen. You can use this function to trigger Command animations on those objects.

Function

Group

Execution

String Exp.

Windows

Windows Embedded

IoT View

Thin Clients

Mobile Access

SendKeyObject

Module Activity

Synchronous

No

Supported

Supported

Not supported

Supported

Not supported

Syntax

SendKeyObject(numEvent,strMainKey,numShift,numCtrl,numAlt,strTargetScreen,optNumID)

SendKeyObject ( { numEvent | 0 | 1 | 2 } ,strMainKey { | , { numShift | 0 | 1 } , { numCtrl | 0 | 1 } , { numAlt | 0 | 1 } ,strTargetScreen { | ,optNumID } } )

numEvent

A numeric value that indicates the type of key event to send to the screen. The following values are accepted:

Value

Description

0

On Down

1

On While

2

On Up

For more information about these key events, see Command animation.

Note: If the "On While" event is specified, the "On While" script on the Command animation is executed just once for each time this function is executed. It is not continuously executed as if the key is pressed and held down, because this function does not have a parameter for specifying duration. If you want to cause that sort of behavior, you can include this function in an appropriately configured FOR loop.

strMainKey

The key to be sent to the screen. The following values are accepted:

Value

Description

"A" … "Z"

alphabetic characters A through Z

"+"

plus symbol

"-"

minus symbol

"*"

multiply symbol

"/"

divide symbol

"LEFT"

left arrow (←)

"UP"

up arrow (↑)

"RIGHT"

right arrow (→)

"DOWN"

down arrow (↓)

"HOME"

Home key

"END"

End key

"PAGEUP"

Page Up key

"PAGEDOWN"

Page Down key

"INSERT"

Insert key

"DELETE"

Delete key

"SPACE"

Space key

"RETURN"

Return key

"BACKSPACE"

Backspace key (if different from Delete key)

"ESCAPE"

Escape key

"F1" … "F20"

function keys F1 through F20

The key must be enclosed in quotes, as shown.

numShift

A numeric value that indicates whether to include Shift with the specified key (for example, Shift+R). The following values are accepted: 0 is no, 1 is yes.

This parameter is optional; if no value is specified, the default value is 0.

numCtrl

A numeric value that indicates whether to include Ctrl with the specified key (for example, Ctrl+R). The following values are accepted: 0 is no, 1 is yes.

This parameter is optional; if no value is specified, the default value is 0.

numAlt

A numeric value that indicates whether to include Alt with the specified key (for example, Alt+R). The following values are accepted: 0 is no, 1 is yes.

This parameter is optional; if no value is specified, the default value is 0.

strTargetScreen

The name of the screen that will receive the key event code.

This parameter is optional; if no value is specified, the currently active screen is used.

optNumID

The specific ID number of the screen. (The ID number is assigned when the screen is opened with the function Open.)

This parameter is optional; if no value is specified, the default value is 0.

Return value

This function returns no value.

Notes

If the Enforce Web functionality equivalence in local project screens option is selected in the project settings, this function cannot be called in VBScript Global Procedures, VBScript scripts (script groups), or other background tasks. This is because the function behaves differently depending on whether you view project screens locally (that is, on the same computer that hosts the project runtime) or remotely. For more information, see Preferences tab.

Also, the parameters numShift, numCtrl, numAlt and strTargetScreen are all optional, but if you configure one of them, you must configure the others as well.

Examples

Send R to the currently active screen:

SendKeyObject(0,"R")

Send Ctrl+Shift+R to the screen named "main" with ID 10:

SendKeyObject(0,"R",1,1,0,"main",10)

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