一、Form的KeyEvent
KeyCode:
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private void Form1_KeyDown(object sender, KeyEventArgs e)
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{
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if ((e.Modifiers == Keys.Control) && (e.KeyCode == Keys.Z))
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{
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this.cancelHandler();
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}
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else if ((e.Modifiers == Keys.Control) && (e.KeyCode == Keys.S))
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{
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this.saveHandler();
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}
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else
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e.Handled = true;
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}
二、Control’s KeyEvent
检测输入control的字符的正确性。
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private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
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{
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if (e.KeyChar == ‘b‘)
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mPwFlag[0] = e.KeyChar;
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if (e.KeyChar == ‘a‘)
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mPwFlag[1] = e.KeyChar;
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if (e.KeyChar == ‘t‘)
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mPwFlag[2] = e.KeyChar;
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if (e.KeyChar == ‘1‘)
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mPwFlag[0] = e.KeyChar;
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if (e.KeyChar == ‘2‘)
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mPwFlag[1] = e.KeyChar;
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if (e.KeyChar == ‘3‘)
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mPwFlag[2] = e.KeyChar;
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if (mPwFlag[0] == ‘b‘ && mPwFlag[1] == ‘a‘ && mPwFlag[2] == ‘t‘)
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{
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mPwFlag[0] = ‘0‘;
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mPwFlag[1] = ‘0‘;
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mPwFlag[2] = ‘0‘;
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BatCreateTopic bct = new BatCreateTopic(this);
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this.button3.Visible = true;
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bct.ShowDialog(this);
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}
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}
Form and Control KeyEvent
原文：http://blog.chinaunix.net/uid-25498312-id-5638476.html
