2018-06-26 14:09:39 +02:00
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#include "WindowsHelper.hpp"
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2018-06-25 22:06:17 +02:00
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#ifdef USEWINSDK
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namespace chatterino {
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typedef enum MONITOR_DPI_TYPE {
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MDT_EFFECTIVE_DPI = 0,
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MDT_ANGULAR_DPI = 1,
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MDT_RAW_DPI = 2,
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MDT_DEFAULT = MDT_EFFECTIVE_DPI
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} MONITOR_DPI_TYPE;
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typedef HRESULT(CALLBACK *GetDpiForMonitor_)(HMONITOR, MONITOR_DPI_TYPE, UINT *, UINT *);
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boost::optional<UINT> getWindowDpi(HWND hwnd)
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{
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static HINSTANCE shcore = LoadLibrary(L"Shcore.dll");
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if (shcore != nullptr) {
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if (auto getDpiForMonitor = GetDpiForMonitor_(GetProcAddress(shcore, "GetDpiForMonitor"))) {
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HMONITOR monitor = MonitorFromWindow(hwnd, MONITOR_DEFAULTTONEAREST);
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UINT xScale, yScale;
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getDpiForMonitor(monitor, MDT_DEFAULT, &xScale, &yScale);
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return xScale;
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}
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}
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return boost::none;
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}
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} // namespace chatterino
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#endif
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