[英]dlang how to convert and trim a char[] into a string?
I am trying to convert a buffer to string but apparently there is this space that I cannot remove 我试图将缓冲区转换为字符串,但显然有一个我无法删除的空间
How should I strip this space and convert a char[] into an string container 我应该如何剥离此空间并将char []转换为字符串容器
string getClass(HWND hwnd=NULL){
char[100] str;
GetClassNameA(hwnd, str.ptr, str.length);
writeln(str.dup.strip,'"'); //nothing is stripped, str is printed as 100 characters
writeln(str[99]=='\0'); //false
writeln(str[99]==' '); //false
writeln(str.dup[99]=='\0'); //false
writeln(str.dup[99]==' '); //false
writeln(str.dup.strip[99]=='\0'); //false
writeln(str.dup.strip[99]==' '); //false
return to!string(str).strip; //same nothing is stripped
}
You need to slice the buffer with the correct length. 您需要使用正确的长度切片缓冲区。
GetClassName
returns the length of the string so do something like GetClassName
返回字符串的长度,所以做类似的事情
char[100] buffer;
auto recv = GetClassNameA(hwnd, buffer.ptr, buffer.length);
if(recv == 0) throw new Exception("failed");
char[] str = buffer[0 .. recv];
// now you can work with str
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