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Update. 

Signed-off-by: Yuhang Zhao <2546789017@qq.com>
This commit is contained in:
Yuhang Zhao 2020-03-29 21:05:41 +08:00
parent 7eab71b126
commit daae7d4ac2
1 changed files with 8 additions and 0 deletions
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8
winnativeeventfilter.cpp
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@ -433,6 +433,14 @@ UINT WinNativeEventFilter::getDpiForWindow(HWND handle) const {
} }
// TODO: Is there an elegant way to acquire the system DPI in // TODO: Is there an elegant way to acquire the system DPI in
// Win7/8/10(before 1607)? // Win7/8/10(before 1607)?
const HDC hdc = GetDC(nullptr);
if (hdc) {
const int dpiX = GetDeviceCaps(hdc, LOGPIXELSX);
const int dpiY = GetDeviceCaps(hdc, LOGPIXELSY);
ReleaseDC(nullptr, hdc);
// Not necessary, just silence a compiler warning.
return dpiX == dpiY ? dpiX : dpiY;
}
return m_defaultDPI; return m_defaultDPI;
} }