C#調用API彈出打印機屬性對話框

調用api彈出打印機屬性對話框 
Author:vitoriatang
From:Internet
.NET Framework封裝了很多關於打印的對話框，比如說PrintDialog, PageSetupDialog. 
但是有的時候我們還需要關心打印機屬性對話框，那么就可以調用API來解決這個問題。有幾個API函數與之相關
PrinterProperties
DocumentProperties
OpenPrinter
ClosePrinter
逐一介紹

printerproperties
顯示打印機屬性對話框。

documentproperties
顯示打印機配置對話框。

openprinter
打開打印機

closeprinter
關閉打印機

在調用printerproperties或者documentproperties的時候，都需要先調用openprinter，並在結束后調用closeprinter。

至於打印機屬性和打印機配置有什么不同，就自己領會了。更為詳盡的信息可以查閱msdn

sample codes:
1. 聲明API函數
       [System.Runtime.InteropServices.DllImportAttribute("winspool.drv", SetLastError = true)]
       public extern static int DocumentProperties(
            IntPtr hWnd,              // handle to parent window 
            IntPtr hPrinter,           // handle to printer object
            string pDeviceName,   // device name
            ref IntPtr pDevModeOutput, // modified device mode
            ref IntPtr pDevModeInput,   // original device mode
            int fMode);                 // mode options 

        [System.Runtime.InteropServices.DllImportAttribute("winspool.drv")]
        public static extern int PrinterProperties(
            IntPtr hwnd,  // handle to parent window
            IntPtr hPrinter); // handle to printer object

         [System.Runtime.InteropServices.DllImportAttribute("winspool.drv", SetLastError = true)]
        public extern static int OpenPrinter(
            string pPrinterName,   // printer name
            ref IntPtr hPrinter,      // handle to printer object
            ref IntPtr pDefault);    // handle to default printer object. 

        [System.Runtime.InteropServices.DllImportAttribute("winspool.drv", SetLastError = true)]
        public static extern int ClosePrinter(
            IntPtr phPrinter); // handle to printer object

2．調用DocumentProperties
private void documentPropButton_Click(object sender, EventArgs e)
        {
            string printerName = _document.PrinterSettings.PrinterName; 

            if (printerName != null && printerName.Length > 0)
            {
                IntPtr pPrinter = IntPtr.Zero;
                IntPtr pDevModeOutput = IntPtr.Zero;
                IntPtr pDevModeInput = IntPtr.Zero;
                IntPtr nullPointer = IntPtr.Zero;

                 OpenPrinter(printerName, ref pPrinter, ref nullPointer); 

                int iNeeded = DocumentProperties(this.Handle, pPrinter, printerName, ref pDevModeOutput, ref pDevModeInput, 0);
                pDevModeOutput = System.Runtime.InteropServices.Marshal.AllocHGlobal(iNeeded);
                DocumentProperties(this.Handle, pPrinter, printerName, ref pDevModeOutput, ref pDevModeInput, DM_PROMPT);
                ClosePrinter(pPrinter);
            }
        } 

3． 調用PrinterProperties
private void printPropButton_Click(object sender, EventArgs e)
        {
            string printerName = _document.PrinterSettings.PrinterName; 

            if (printerName != null && printerName.Length > 0)
            {
                IntPtr pPrinter = IntPtr.Zero;
                IntPtr pDevModeOutput = IntPtr.Zero;
                IntPtr pDevModeInput = IntPtr.Zero;
                IntPtr nullPointer = IntPtr.Zero;

                 OpenPrinter(printerName, ref pPrinter, ref nullPointer); 

                int iNeeded = PrinterProperties(this.Handle, pPrinter);
                ClosePrinter(pPrinter);
            }