windows下c++集成podofo库进行pdf文件的打印，并指定打印机的纸盒和纸张

在Windows下使用C语言集成Podofo库进行PDF文件的打印，并指定打印机的纸盒和纸张，可以参考以下步骤：

1. 下载并安装Podofo库，并将其添加到Visual Studio项目中。

2. 定义需要使用的头文件和命名空间：

#include <podofo/podofo.h>
using namespace PoDoFo;

3. 打开需要打印的PDF文件：

PdfMemDocument doc("example.pdf");

4. 获取打印机列表并选择需要使用的打印机：

PdfPrinter printer;
if ( !printer.SetPrinterName("Printer Name") ) {
    printf("Failed to set printer name!\n");
    return 1;
}

5. 获取打印机支持的纸张列表，并选择需要使用的纸张：

PdfPrinterDevice printerDevice(&printer);
if ( !printerDevice.Open() ) {
    printf("Failed to open printer device!\n");
    return 1;
}
PdfPage* page = doc.GetPage(0);
PdfRect pageRect = page->GetMediaBox();
PdfPaperSize paperSize = printerDevice.GetPaperSizeForRect(pageRect.GetWidth(), pageRect.GetHeight());
if ( !printerDevice.SelectPaperSize(paperSize) ) {
    printf("Failed to select paper size!\n");
    return 1;
}

6. 获取打印机支持的纸盒列表，并选择需要使用的纸盒：

PdfPaperTray tray = printerDevice.GetDefaultPaperTray();
if ( !printerDevice.SelectPaperTray(tray) ) {
    printf("Failed to select paper tray!\n");
    return 1;
}

7. 开始打印：

PdfPainter painter;
if ( !painter.Begin(&printerDevice) ) {
    printf("Failed to begin painting!\n");
    return 1;
}
page->Draw(&painter);
painter.End();

完整示例代码：

#include <podofo/podofo.h>
using namespace PoDoFo;

int main()
{
    try {
        // Open PDF file
        PdfMemDocument doc("example.pdf");

        // Select printer
        PdfPrinter printer;
        if ( !printer.SetPrinterName("Printer Name") ) {
            printf("Failed to set printer name!\n");
            return 1;
        }

        // Select paper size
        PdfPrinterDevice printerDevice(&printer);
        if ( !printerDevice.Open() ) {
            printf("Failed to open printer device!\n");
            return 1;
        }
        PdfPage* page = doc.GetPage(0);
        PdfRect pageRect = page->GetMediaBox();
        PdfPaperSize paperSize = printerDevice.GetPaperSizeForRect(pageRect.GetWidth(), pageRect.GetHeight());
        if ( !printerDevice.SelectPaperSize(paperSize) ) {
            printf("Failed to select paper size!\n");
            return 1;
        }

        // Select paper tray
        PdfPaperTray tray = printerDevice.GetDefaultPaperTray();
        if ( !printerDevice.SelectPaperTray(tray) ) {
            printf("Failed to select paper tray!\n");
            return 1;
        }

        // Print
        PdfPainter painter;
        if ( !painter.Begin(&printerDevice) ) {
            printf("Failed to begin painting!\n");
            return 1;
        }
        page->Draw(&painter);
        painter.End();

        // Close printer device
        printerDevice.Close();
    }
    catch ( const PdfError& e ) {
        printf("Error: %s\n", e.what());
        return 1;
    }

    return 0;
}