为什么将文档打印为PDF会崩溃？

如何解决为什么将文档打印为PDF会崩溃？

我正在尝试运行从QtWiki用Qt生成pdf的官方示例，但是它崩溃了，代码为-1073740940。它发生在以下行：QPrinter printer(QPrinter::PrinterResolution);

printsupport已添加到项目文件。

我没有更改示例代码中的任何内容：

#include <QtWidgets>
#ifndef QT_NO_PRINTER
#include <QPrinter>
#endif

int main(int argc,char *argv[])
{
    QApplication app(argc,argv);

    QString fileName = QFileDialog::getSaveFileName((QWidget* )0,"Export PDF",QString(),"*.pdf");
    if (QFileInfo(fileName).suffix().isEmpty()) { fileName.append(".pdf"); }

    QPrinter printer(QPrinter::PrinterResolution);
    printer.setOutputFormat(QPrinter::PdfFormat);
    printer.setPaperSize(QPrinter::A4);
    printer.setOutputFileName(fileName);

    QTextDocument doc;
    doc.setHtml("<h1>Hello,World!</h1>\n<p>Lorem ipsum dolor sit amet,consectitur adipisci elit.</p>");
    doc.setPageSize(printer.pageRect().size()); // This is necessary if you want to hide the page number
    doc.print(&printer);
}

我在设备中安装了“ Microsoft打印到pdf”。

崩溃的可能是什么原因以及如何解决？

//在之后添加

我的设置：

Qt 5.14.1
MinGW 64 bit
Win 10 64 bit

调试器堆栈跟踪：

1  ntdll!RtlIsNonEmptyDirectoryReparsePointAllowed                                                    0x7ffa1b1b91b3 
2  ntdll!RtlpNtMakeTemporaryKey                                                                       0x7ffa1b1c15e2 
3  ntdll!RtlpNtMakeTemporaryKey                                                                       0x7ffa1b1c18ea 
4  ntdll!RtlpNtMakeTemporaryKey                                                                       0x7ffa1b1ca8a9 
5  ntdll!RtlGetCurrentServiceSessionId                                                                0x7ffa1b10253a 
6  ntdll!RtlGetCurrentServiceSessionId                                                                0x7ffa1b100790 
7  ntdll!RtlFreeHeap                                                                                  0x7ffa1b0ffb91 
8  ntdll!RtlpNtMakeTemporaryKey                                                                       0x7ffa1b1c53c9 
9  ntdll!memset                                                                                       0x7ffa1b175670 
10 ntdll!RtlGetCurrentServiceSessionId                                                                0x7ffa1b100790 
11 ntdll!RtlFreeHeap                                                                                  0x7ffa1b0ffb91 
12 msvcrt!free                                                                                        0x7ffa19189cfc 
13 QWindowsPrintDevice::defaultPageSize() const                                                       0x6f882e41     
14 QPrintDevice::defaultPageSize() const                                                              0x6df43efd     
15 QWin32PrintEngine::QWin32PrintEngine(QPrinter::PrinterMode,QString const&)                        0x6df528b2     
16 QWindowsPrinterSupport::createNativePrintEngine(QPrinter::PrinterMode,QString const&)             0x6f88169a     
17 QPrinterPrivate::initEngines(QPrinter::OutputFormat,QPrinterInfo const&)                          0x6df4a523     
18 QPrinterPrivate::init(QPrinterInfo const&,QPrinter::PrinterMode)                                  0x6df4a70e     
19 QPrinter::QPrinter(QPrinter::PrinterMode)                                                          0x6df4a818     
20 main                                                                                   main.cpp 13 0x4016cc