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MinGW and WinXP support (issue #102) (#103)

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* Add MinGW and WinXP support, remove Win SDK dep when using MinGW

Was meant to add MinGW support only, WinXP support was made by accident.
Changes:
* Remove Win SDK dependency when compiled with MinGW
* Remap the Win SDK-depended functions to string.h substitutes
* Remap missing WinAPI call RegSetKeyValueW to a substitute function

* Remove warnings by pragma when using MinGW
This commit is contained in:
Dmitry 2018-01-05 22:56:55 +04:00 committed by Ben Morse
parent 2d0661c906
commit b0e31a9e25
2 changed files with 48 additions and 13 deletions
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57
src/discord_register_win.cpp
View file

@ -1,17 +1,4 @@
/*
* MinGW defaults to WINNT 5.1 (aka XP), however some of functions used here
* require WINNT >= 6.0 APIs, which are only visible when WINVER and
* _WIN32_WINNT defines are set properly before including any system headers.
* Such API is e.g. RegSetKeyValueW.
*/
#ifdef __MINGW32__
// 0x0600 == vista
#define WINVER 0x0600
#define _WIN32_WINNT 0x0600
#endif // __MINGW32__
#include "discord-rpc.h"
#include <stdio.h>
#define WIN32_LEAN_AND_MEAN
#define NOMCX
@ -19,7 +6,51 @@
#define NOIME
#include <windows.h>
#include <psapi.h>
#include <cwchar>
#include <stdio.h>
/**
* Updated fixes for MinGW and WinXP
* This block is written the way it does not involve changing the rest of the code
* Checked to be compiling
* 1) strsafe.h belongs to Windows SDK and cannot be added to MinGW
* #include guarded, functions redirected to <string.h> substitutes
* 2) RegSetKeyValueW and LSTATUS are not declared in <winreg.h>
* The entire function is rewritten
*/
#ifdef __MINGW32__
/// strsafe.h fixes
#define StringCbPrintfW snwprintf
LPWSTR StringCbCopyW(LPWSTR a, size_t l, LPCWSTR b)
{
a[l-1] = 0;
return wcsncpy(a, b, l - 1); // does not set the last byte to 0 on overflow, so it's set to 0 above
}
#else
#include <strsafe.h>
#endif // __MINGW32__
/// winreg.h fixes
#ifndef LSTATUS
#define LSTATUS LONG
#endif
#ifdef RegSetKeyValueW
#undefine RegSetKeyValueW
#endif
#define RegSetKeyValueW regset
LSTATUS regset(HKEY hkey, LPCWSTR subkey, LPCWSTR name, DWORD type, const void *data, DWORD len)
{
HKEY hsubkey = NULL;
LSTATUS ret;
if (subkey && subkey[0]) /* need to create the subkey */
{
if ((ret = RegCreateKeyW( hkey, subkey, &hsubkey )) != ERROR_SUCCESS) return ret;
hkey = hsubkey;
}
ret = RegSetValueExW( hkey, name, 0, type, (const BYTE*)data, len );
if (hsubkey) RegCloseKey( hsubkey );
return ret;
}
void Discord_RegisterW(const wchar_t* applicationId, const wchar_t* command)
{

4
src/serialization.h
View file

@ -2,6 +2,7 @@
#include <stdint.h>
#ifndef __MINGW32__
#pragma warning(push)
#pragma warning(disable : 4061) // enum is not explicitly handled by a case label
@ -9,12 +10,15 @@
#pragma warning(disable : 4464) // relative include path contains
#pragma warning(disable : 4668) // is not defined as a preprocessor macro
#pragma warning(disable : 6313) // Incorrect operator
#endif // __MINGW32__
#include "rapidjson/document.h"
#include "rapidjson/stringbuffer.h"
#include "rapidjson/writer.h"
#ifndef __MINGW32__
#pragma warning(pop)
#endif // __MINGW32__
// if only there was a standard library function for this
template <size_t Len>