我该怎么做打印快捷键

Question

如何为打印操作做快捷键？

我已经有这个了

我不知道if{}里面有什么

    if (keyData == (Keys.Control | Keys.P))
    {
        drucken_Click();

    }


    private void drucken_Click(object sender, EventArgs e)
    {

        PrintDialog printDialog = new PrintDialog();
        PrintDocument printDocument = new PrintDocument();
        printDialog.Document = printDocument;

        printDocument.PrintPage += new PrintPageEventHandler  (PrintReceiptPage);

        DialogResult result = printDialog.ShowDialog();

        if (result == DialogResult.OK)
        {
            printDocument.Print();
        }


    }

Answer 1

您无需在过程中使用参数，因此可以通过以下方式使用它：

if (keyData == (Keys.Control | Keys.P))
{
    drucken_Click(null, EventArgs.Empty);
}

但是更好的方法是创建新的无参数函数并使用它。 像这样：

private void Print()
{
    PrintDialog printDialog = new PrintDialog();
    PrintDocument printDocument = new PrintDocument();
    printDialog.Document = printDocument;

    printDocument.PrintPage += new PrintPageEventHandler  (PrintReceiptPage);

    DialogResult result = printDialog.ShowDialog();

    if (result == DialogResult.OK)
    {
        printDocument.Print();
    }
}

Answer 2

您可以传入不使用的空值，但将来可能会中断。 最好将打印代码移到自己的方法中：

if (keyData == (Keys.Control | Keys.P))
{
    PrintDocument();

}


private void drucken_Click(object sender, EventArgs e)
{
    PrintDocument();
}

private void PrintDocument()
{
    PrintDialog printDialog = new PrintDialog();
    PrintDocument printDocument = new PrintDocument();
    printDialog.Document = printDocument;

    printDocument.PrintPage += new PrintPageEventHandler  (PrintReceiptPage);

    DialogResult result = printDialog.ShowDialog();

    if (result == DialogResult.OK)
    {
        printDocument.Print();
    }
}

Answer 3

使用KeyDown事件

private void Form1_Load(object sender, EventArgs e)
    {

      this.KeyDown += Form1_KeyDown;

    }  

    void Form1_KeyDown(object sender, KeyEventArgs e)
    {

        if(e.KeyCode =xxx)//check the key pressed
            //DO....
     drucken_Click(null, null);
    }