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[idd] helper: fallback to default mode list

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This commit is contained in:
Quantum
2025-11-10 00:50:27 -05:00
parent 4269b5598a
commit 41678e856f
4 changed files with 40 additions and 18 deletions
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21
idd/LGIddHelper/CRegistrySettings.cpp
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@@ -4,6 +4,8 @@
#include <regex>
#include <CDebug.h>
#include "DefaultDisplayModes.h"
#define LGIDD_REGKEY L"SOFTWARE\\LookingGlass\\IDD"
CRegistrySettings::CRegistrySettings() : hKey(nullptr) {}
@@ -60,8 +62,25 @@ std::optional<std::vector<DisplayMode>> CRegistrySettings::getModes()
DWORD type = 0, cb = 0;
status = RegGetValue(hKey, nullptr, L"Modes", RRF_RT_REG_MULTI_SZ, &type, nullptr, &cb);
if (status != ERROR_SUCCESS)
switch (status)
{
case ERROR_SUCCESS:
break;
case ERROR_FILE_NOT_FOUND:
{
std::vector<DisplayMode> result;
for (int i = 0; i < ARRAYSIZE(DefaultDisplayModes); ++i)
{
DisplayMode mode;
mode.width = DefaultDisplayModes[i][0];
mode.height = DefaultDisplayModes[i][1];
mode.refresh = DefaultDisplayModes[i][2];
mode.preferred = i == DefaultPreferredDisplayMode;
result.emplace_back(mode);
}
return result;
}
default:
DEBUG_ERROR_HR(status, "RegGetValue(Modes) length computation");
return {};
}