diff options
| author | George Hazan <ghazan@miranda.im> | 2022-06-24 20:09:50 +0300 |
|---|---|---|
| committer | George Hazan <ghazan@miranda.im> | 2022-06-24 20:09:50 +0300 |
| commit | 6432012822e9c153fb288fe10c17a16d0b14a347 (patch) | |
| tree | a3e14e93859f5ef5ed911df418202374a35ef95a /libs | |
| parent | 663a045a164f8973d4f66e2d8e45b495eb0519e6 (diff) | |
fix for rare crash
Diffstat (limited to 'libs')
| -rw-r--r-- | libs/mTextControl/src/FormattedTextDraw.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/libs/mTextControl/src/FormattedTextDraw.cpp b/libs/mTextControl/src/FormattedTextDraw.cpp index 58023f93fb..de93cef046 100644 --- a/libs/mTextControl/src/FormattedTextDraw.cpp +++ b/libs/mTextControl/src/FormattedTextDraw.cpp @@ -196,6 +196,13 @@ HRESULT CFormattedTextDraw::Create() HRESULT CFormattedTextDraw::get_NaturalSize(void *hdcDraw, long *Width, long *Height) { + if (hdcDraw == 0) + return S_FALSE; + + int iCaps = GetDeviceCaps((HDC)hdcDraw, LOGPIXELSY); + if (iCaps == 0) + return S_FALSE; + LOGFONT lf; GetObject(GetCurrentObject((HDC)hdcDraw, OBJ_FONT), sizeof(lf), &lf); @@ -210,7 +217,7 @@ HRESULT CFormattedTextDraw::get_NaturalSize(void *hdcDraw, long *Width, long *He cf.dwEffects = CFE_BOLD | CFE_ITALIC | CFE_STRIKEOUT | CFE_UNDERLINE; cf.crTextColor = GetTextColor((HDC)hdcDraw); cf.bCharSet = lf.lfCharSet; - cf.yHeight = 1440 * abs(lf.lfHeight) / GetDeviceCaps((HDC)hdcDraw, LOGPIXELSY); + cf.yHeight = 1440 * abs(lf.lfHeight) / iCaps; wcsncpy_s(cf.szFaceName, lf.lfFaceName, _TRUNCATE); if (!m_spTextServices) |