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#ifndef COMMON_H
#define COMMON_H
#include <memory>
#include <optional>
#include <stdexcept>
#include <windows.h>
TCHAR *TszFromSz(const char *, int);
struct Win32Error : public std::exception
{
Win32Error(DWORD);
~Win32Error(void);
virtual const char *what(void) const noexcept override;
private:
DWORD m_dwErr;
char *m_szMsg = NULL;
};
struct Library
{
Library(const TCHAR *);
~Library(void);
FARPROC GetProcAddress(const char *);
private:
HMODULE m_hModule;
};
#ifdef UNICODE
#define WA "W"
#else
#define WA "A"
#endif
inline int Cmp(int a, int b)
{
if (a == b)
return 0;
if (a > b)
return 1;
return -1;
}
inline int Dpi(int i)
{
extern int g_iDPI;
return MulDiv(i, g_iDPI, 96);
}
template <class T, typename ...A>
std::optional<T> try_make(A ...args)
{
try {
return T(args...);
} catch (...) {
return {};
}
}
#endif
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