When you want to display a warning message (like "File doesn't exist") to user, using message box is a good choice. Following code is how to create a message box in PySide:
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msg_box = QMessageBox() msg_box.setText('Warning') msgBox.setStandardButtons(QMessageBox.Ok|QMessageBox.Cancel) msg_box.exec_() |
QMessageBox is the message window class, it's defined in PySide.QtGui module. setText method will set the information text, and exec_ method will display the message box and waiting for user's operation.
SOAPEngine is an iOS SOAP client library, the trial version provides a .framework file for user.
I added it via Project->Targets->General->Linked Frameworks and Libraries, then include its header file:
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#import <SOAPEngineTrial/SOAPEngine.h> |
But when compiling the program, I got following error message:
Undefined symbols for architecture i386:
"_htmlReadMemory", referenced from:
_PerformHTMLXPathQuery in SOAPEngineTrial(XPathQuery.o)
"_xmlFreeDoc", referenced from:
_PerformHTMLXPathQuery in SOAPEngineTrial(XPathQuery.o)
_PerformXMLXPathQuery in SOAPEngineTrial(XPathQuery.o)
"_xmlReadMemory", referenced from:
_PerformXMLXPathQuery in SOAPEngineTrial(XPathQuery.o)
"_xmlXPathEvalExpression", referenced from:
_PerformXPathQuery in SOAPEngineTrial(XPathQuery.o)
"_xmlXPathFreeContext", referenced from:
_PerformXPathQuery in SOAPEngineTrial(XPathQuery.o)
"_xmlXPathFreeObject", referenced from:
_PerformXPathQuery in SOAPEngineTrial(XPathQuery.o)
"_xmlXPathNewContext", referenced from:
_PerformXPathQuery in SOAPEngineTrial(XPathQuery.o)
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Actually libxml2 is needed for SOAPEngine, so we need add "libxml2.dylib" file to "Linked Frameworks and Libraries". After adding this library, the error disappeared.