フィルターのクリア

while trying to automate keyPress event in a loop, I get the error: "Unrecognized function or variable 'VK_i'

16 ビュー (過去 30 日間)
I am trying to automate/simualte the keyboard to automatically generate/type numbers using the java robot class and I running into the following error: Unrecognized function or variable 'VK_i'. Could someone help. Here is my code snippet:
clc; clear; close all;
import java.awt.Robot;
import java.awt.event.*;
import java.awt.event.KeyEvent;
keybrd = java.awt.Robot; %Create a keyboard object
for i = 1:3
%num = num2str(i);
key = java.awt.event.KeyEvent.VK_i;
keybrd.keyPress(key);
keybrd.keyRelease(key);
end

採用された回答

Voss
Voss 2022 年 8 月 8 日
key = java.awt.event.KeyEvent.(sprintf('VK_%d',i));
  2 件のコメント
Syed Bahrez Nadeem
Syed Bahrez Nadeem 2022 年 8 月 8 日
Thanks! That worked. In a second for loop of the same code, I am trying to generate/type letters and I am running into indexing errors. Could you please help with this?
import java.awt.Robot;
import java.awt.event.*;
import java.awt.event.KeyEvent;
keybrd = java.awt.Robot; %Create a keyboard object
%Iterate over the length of ext. Generate and press a letter key
ext = 'tf';
for i = 1:length(ext)
% inp = strcat('java.awt.event.KeyEvent.VK_',ext(i)); %Ex: 'VK_t'
% key = eval(inp); %Evaluates the concatenated string inp and returns it
%index = num2str(i);
key = java.awt.event.KeyEvent.(sprintf('VK_%d',ext(num2str(i))));
keybrd.keyPress(key);
keybrd.keyRelease(key);
end

サインインしてコメントする。

その他の回答 (0 件)

カテゴリ

Help Center および File ExchangeEntering Commands についてさらに検索

製品


リリース

R2022a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by