bool CDpiForDialog::Attach(HWND hWnd, HWND hCenterParent, DpiValue* pCurDpi /*= NULL*/)
{
mh_Dlg = hWnd;
wchar_t szLog[100];
mh_OldFont = (HFONT)SendMessage(hWnd, WM_GETFONT, 0, 0);
if ((mh_OldFont != NULL)
&& (GetObject(mh_OldFont, sizeof(mlf_InitFont), &mlf_InitFont) > 0))
{
mn_InitFontHeight = mlf_InitFont.lfHeight;
_wsprintf(szLog, SKIPLEN(countof(szLog)) L"CDpiForDialog(x%08X) Font='%s' lfHeight=%i", (DWORD)(DWORD_PTR)hWnd, mlf_InitFont.lfFaceName, mlf_InitFont.lfHeight);
}
else
{
mn_InitFontHeight = 8;
ZeroStruct(mlf_InitFont);
mlf_InitFont.lfHeight = mn_InitFontHeight;
lstrcpyn(mlf_InitFont.lfFaceName, L"MS Shell Dlg", countof(mlf_InitFont.lfFaceName));
mlf_InitFont.lfWeight = 400;
mlf_InitFont.lfCharSet = DEFAULT_CHARSET;
_wsprintf(szLog, SKIPLEN(countof(szLog)) L"CDpiForDialog(x%08X) DefaultFont='%s' lfHeight=%i", (DWORD)(DWORD_PTR)hWnd, mlf_InitFont.lfFaceName, mlf_InitFont.lfHeight);
}
LogString(szLog);
// Up to Windows 8 - OS will care of dialog scaling
// And what will happens in Windows 8.1?
// If `Per-monitor` dpi was choosed in the OS settings,
// we need to re-scale our dialog manually!
// But if one dpi was choosed for all monitors?
CDpiAware::QueryDpi(hCenterParent ? hCenterParent : hWnd, &m_InitDpi);
if (!m_Items.Initialized())
m_Items.Init(8);
if (CDpiAware::IsPerMonitorDpi())
{
// When Windows 8.1 is in per-monitor mode
// and application is marked as per-monitor-dpi aware
// Windows does not resize dialogs automatically.
// Our resources are designed for standard 96 dpi.
m_CurDpi.SetDpi(96, 96);
MArray<DlgItem>* p = NULL;
if (m_Items.Get(m_CurDpi.Ydpi, &p) && p)
delete p;
p = LoadDialogItems(hWnd);
m_Items.Set(m_CurDpi.Ydpi, p);
// Need to resize the dialog?
if (m_InitDpi.Ydpi != m_CurDpi.Ydpi)
{
if (!SetDialogDPI(m_InitDpi))
return false;
if (pCurDpi)
pCurDpi->SetDpi(m_InitDpi);
}
}
else
{
m_CurDpi.SetDpi(m_InitDpi.Xdpi, m_InitDpi.Ydpi);
}
return true;
}
bool CDpiForDialog::Attach(HWND hWnd, HWND hCenterParent, CDynDialog* apDlgTemplate)
{
mh_Dlg = hWnd;
wchar_t szLog[100];
mn_TemplateFontSize = apDlgTemplate ? apDlgTemplate->GetFontPointSize() : 8;
mh_OldFont = (HFONT)SendMessage(hWnd, WM_GETFONT, 0, 0);
if ((mh_OldFont != NULL)
&& (GetObject(mh_OldFont, sizeof(mlf_InitFont), &mlf_InitFont) > 0))
{
_wsprintf(szLog, SKIPLEN(countof(szLog)) L"CDpiForDialog(x%08X) Font='%s' lfHeight=%i Points=%u", (DWORD)(DWORD_PTR)hWnd, mlf_InitFont.lfFaceName, mlf_InitFont.lfHeight, mn_TemplateFontSize);
}
else
{
ZeroStruct(mlf_InitFont);
mlf_InitFont.lfHeight = GetFontSizeForDpi(NULL, 96);
lstrcpyn(mlf_InitFont.lfFaceName, L"MS Shell Dlg", countof(mlf_InitFont.lfFaceName));
mlf_InitFont.lfWeight = 400;
mlf_InitFont.lfCharSet = DEFAULT_CHARSET;
_wsprintf(szLog, SKIPLEN(countof(szLog)) L"CDpiForDialog(x%08X) DefaultFont='%s' lfHeight=%i Points=%u", (DWORD)(DWORD_PTR)hWnd, mlf_InitFont.lfFaceName, mlf_InitFont.lfHeight, mn_TemplateFontSize);
}
LogString(szLog);
// Up to Windows 8 - OS will care of dialog scaling
// And what will happens in Windows 8.1?
// If `Per-monitor` dpi was choosed in the OS settings,
// we need to re-scale our dialog manually!
// But if one dpi was choosed for all monitors?
CDpiAware::QueryDpiForMonitor(NULL, &m_InitDpi); // Whole desktop DPI (in most cases that will be Primary monitor DPI)
m_CurDpi.SetDpi(m_InitDpi);
if (!m_Items.Initialized())
m_Items.Init(8);
bool bPerMonitor = CDpiAware::IsPerMonitorDpi();
DEBUGTEST(bPerMonitor = true);
if (bPerMonitor)
{
// When Windows 8.1 is in per-monitor mode
// and application is marked as per-monitor-dpi aware
// Windows does not resize dialogs automatically.
// Our resources are designed for standard 96 dpi.
MArray<DlgItem>* p = NULL;
if (m_Items.Get(m_CurDpi.Ydpi, &p) && p)
delete p;
p = LoadDialogItems(hWnd);
m_Items.Set(m_CurDpi.Ydpi, p);
DpiValue CurMonDpi;
CDpiAware::QueryDpi(hCenterParent ? hCenterParent : hWnd, &CurMonDpi);
// Need to resize the dialog?
if (m_CurDpi.Ydpi != CurMonDpi.Ydpi)
{
if (!SetDialogDPI(CurMonDpi))
return false;
}
}
else
{
m_CurDpi.SetDpi(m_InitDpi.Xdpi, m_InitDpi.Ydpi);
}
return true;
}