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Follow-up of c62006048f -> Notify Windows only when the its registry is changed

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This commit is contained in:
Enrico Turri 2019-05-17 11:35:35 +02:00
parent de8db7ccc4
commit a098f118b6
1 changed files with 17 additions and 8 deletions
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25
src/slic3r/GUI/GUI_App.cpp
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@ -998,7 +998,7 @@ void GUI_App::associate_3mf_files()
{
// see as reference: https://stackoverflow.com/questions/20245262/c-program-needs-an-file-association
auto reg_set = [](HKEY hkeyHive, const wchar_t* pszVar, const wchar_t* pszValue)
auto reg_set = [](HKEY hkeyHive, const wchar_t* pszVar, const wchar_t* pszValue)->bool
{
wchar_t szValueCurrent[1000];
DWORD dwType;
@ -1010,26 +1010,32 @@ void GUI_App::associate_3mf_files()
if ((iRC != ERROR_SUCCESS) && !bDidntExist)
// an error occurred
return;
return false;
if (!bDidntExist)
{
if (dwType != REG_SZ)
// invalid type
return;
return false;
if (::wcscmp(szValueCurrent, pszValue) == 0)
// value already set
return;
return false;
}
DWORD dwDisposition;
HKEY hkey;
iRC = ::RegCreateKeyExW(hkeyHive, pszVar, 0, 0, 0, KEY_ALL_ACCESS, nullptr, &hkey, &dwDisposition);
bool ret = false;
if (iRC == ERROR_SUCCESS)
{
iRC = ::RegSetValueExW(hkey, L"", 0, REG_SZ, (BYTE*)pszValue, (::wcslen(pszValue) + 1) * sizeof(wchar_t));
if (iRC == ERROR_SUCCESS)
ret = true;
}
RegCloseKey(hkey);
return ret;
};
wchar_t app_path[MAX_PATH];
@ -1044,11 +1050,14 @@ void GUI_App::associate_3mf_files()
std::wstring reg_prog_id = reg_base + L"\\" + prog_id;
std::wstring reg_prog_id_command = reg_prog_id + L"\\Shell\\Open\\Command";
reg_set(HKEY_CURRENT_USER, reg_extension.c_str(), prog_id.c_str());
reg_set(HKEY_CURRENT_USER, reg_prog_id.c_str(), prog_desc.c_str());
reg_set(HKEY_CURRENT_USER, reg_prog_id_command.c_str(), prog_command.c_str());
bool is_new = false;
is_new |= reg_set(HKEY_CURRENT_USER, reg_extension.c_str(), prog_id.c_str());
is_new |= reg_set(HKEY_CURRENT_USER, reg_prog_id.c_str(), prog_desc.c_str());
is_new |= reg_set(HKEY_CURRENT_USER, reg_prog_id_command.c_str(), prog_command.c_str());
::SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, nullptr, nullptr);
if (is_new)
// notify Windows only when any of the values gets changed
::SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, nullptr, nullptr);
}
#endif // __WXMSW__