X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/57c26f8210c40317d70d616a05198e042ee9175b..5f8ba10e863cf2df9ac0a10033a7d5d866002337:/src/msw/dc.cpp?ds=sidebyside

diff --git a/src/msw/dc.cpp b/src/msw/dc.cpp
index 51b2ebb921..a56e537832 100644
--- a/src/msw/dc.cpp
+++ b/src/msw/dc.cpp
@@ -54,7 +54,6 @@
 #endif
 
 #include <string.h>
-#include <math.h>
 
 #if wxUSE_COMMON_DIALOGS && !defined(__WXMICROWIN__)
     #include <commdlg.h>
@@ -94,11 +93,6 @@ static const int VIEWPORT_EXTENT = 1000;
 static const int MM_POINTS = 9;
 static const int MM_METRIC = 10;
 
-// usually this is defined in math.h
-#ifndef M_PI
-    static const double M_PI = 3.14159265358979323846;
-#endif // M_PI
-
 // ROPs which don't have standard names (see "Ternary Raster Operations" in the
 // MSDN docs for how this and other numbers in wxDC::Blit() are obtained)
 #define DSTCOPY 0x00AA0029      // a.k.a. NOP operation
@@ -2233,7 +2227,7 @@ void wxDC::DoGetSizeMM(int *w, int *h) const
 
 wxSize wxDC::GetPPI() const
 {
-    WXMICROWIN_CHECK_HDC_RET(wxSize())
+    WXMICROWIN_CHECK_HDC_RET(wxSize(0,0))
 
     int x = ::GetDeviceCaps(GetHdc(), LOGPIXELSX);
     int y = ::GetDeviceCaps(GetHdc(), LOGPIXELSY);
@@ -2461,6 +2455,7 @@ static bool AlphaBlt(HDC hdcDst,
 #else // !wxHAVE_RAW_BITMAP
     // no wxAlphaBlend() neither, fall back to using simple BitBlt() (we lose
     // alpha but at least something will be shown like this)
+    wxUnusedVar(bmp);
     return false;
 #endif // wxHAVE_RAW_BITMAP
 }