J'ai complètement échoué ce très simple P/Invoke.Marshalling chaîne simple en C#
[System.Runtime.InteropServices.DllImport(
"temp.dll"
)]
private static extern System.IntPtr parser_alloc();
[System.Runtime.InteropServices.DllImport(
"temp.dll",
CharSet = System.Runtime.InteropServices.CharSet.Ansi
)]
private static extern void parser_add_file(
System.IntPtr p,
[MarshalAs(UnmanagedType.LPStr)]string f,
[MarshalAs(UnmanagedType.LPStr)]string s);
[System.Runtime.InteropServices.DllImport(
"temp.dll"
)]
private static extern void parser_free(
System.IntPtr p);
[System.Runtime.InteropServices.DllImport(
"temp.dll"
)]
private static extern void parser_emit_results(
System.IntPtr p);
[System.Runtime.InteropServices.DllImport(
"temp.dll",
CharSet = System.Runtime.InteropServices.CharSet.Ansi
)]
private static extern void parser_file_updated(
System.IntPtr p,
[MarshalAs(UnmanagedType.LPStr)]string f,
int offset,
int added);
La création de l'objet semble aller bien. Cependant, lorsque j'essaie d'appeler parser_add_file, l'exécution me dit que j'ai une signature incompatible. Ceci est mon code C++ existant:
class Parser {
public:
void add_file(std::string filename, std::string source) {
std::cout << "add_file | " << filename << " | " << source << "\n";
}
void clear_contents() {
std::cout << "clear_contents\n";
}
void emit_results() {
std::cout << "emit_results\n";
}
void file_updated(std::string filename, int offset, int added) {
std::cout << "file_updated | " << filename << " | " << offset << " | " << added << "\n";
// added should be negative to signify removing
}
Parser() {
std::cout << "I made a Parser!\n";
}
};
extern "C" __declspec(dllexport) Parser* parser_alloc() {
return new Parser;
};
extern "C" __declspec(dllexport) void parser_add_file(Parser* p, const char* filename, const char* string) {
p->add_file(filename, string);
}
extern "C" __declspec(dllexport) void parser_free(Parser* p) {
delete p;
}
extern "C" __declspec(dllexport) void parser_emit_results(Parser* p) {
p->emit_results();
}
extern "C" __declspec(dllexport) void parser_file_updated(Parser* p, const char* filename, int offset, int added) {
p->file_updated(filename, offset, added);
}
Dois-je passer juste P/Invoke et aller à C++/CLI pour ce poste?