wxWidgets 中类型转换

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最新推荐文章于 2017-03-16 10:58:38 发布

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本文介绍了在使用wxWidgets库时，如何进行各种类型与wxString之间的转换，包括基本数据类型如整数、浮点数，以及不同字符串类型间的相互转换。

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http://www.cnblogs.com/donknap/archive/2010/02/27/1674723.html

char* to wxString

char* chars = "Hello world";
wxString mystring(chars, wxConvUTF8);

wxString to char*

void my_function(const char* foo)
{
}
wxString mystring(wxT("HelloWorld"));
my_function( mystring.mb_str() );

mb_str() returns a temporary pointer. If you need to store it in a char* :

wxString mystring(wxT("HelloWorld"));
char cstring[1024];
strcpy(cstring, (const char*)mystring.mb_str(wxConvUTF8));

You can also use ToUTF8(), since which encoding you get is clearer than with mb_str()

wxString to TCHAR

TCHAR tCharString[255];
wxString myString(_T("Hello World"));
const wxChar* myStringChars = myString.c_str();  
for (int i = 0; i < myString.Len(); i++) 
{   
    tCharString[i] = myStringChars [i];
}
tCharString[myString.Len()] = _T('\0');

int to wxString

wxString mystring = wxString::Format(wxT("%i"),myint);

wxString mystring;mystring << myint;

float to wxString

wxString mystring = wxString::Format(wxT("%f"), myfloat);

wxString mystring;mystring << myfloat;

wxString to integer number

wxString number(wxT("145"));
long value;if(!s.ToLong(&value)) { /* error! */ }

wxString str = _T("123");
int num; num = wxAtoi(str);

wxString to floating-point number

wxString number(wxT("3.14159"));
double value;if(!number.ToDouble(&value)){ /* error! */ }

std::string to wxString

std::string stlstring = "Hello world";
wxString mystring(stlstring.c_str(), wxConvUTF8);

wxString to std::string

wxString mystring(wxT("HelloWorld"));
std::string stlstring = std::string(mystring.mb_str());

转自: http://wiki.wxwidgets.org/Converting_everything_to_and_from_wxString