fixed an apparent bug in DetermineScaling()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14873 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/msw/printwin.cpp b/src/msw/printwin.cpp
index b159af65f90bd6f91d8f3517fc7d73e25c273c61..ea9b16ab5a19b38ec29cd6098d320d014279e5de 100644 (file)
--- a/src/msw/printwin.cpp
+++ b/src/msw/printwin.cpp
@@ -373,9 +373,7 @@ void wxWindowsPrintPreview::DetermineScaling()
 {
     HDC dc = ::GetDC(NULL);
     int screenWidth = ::GetDeviceCaps(dc, HORZSIZE);
-    //    int screenHeight = ::GetDeviceCaps(dc, VERTSIZE);
-    int screenXRes = ::GetDeviceCaps(dc, HORZRES);
-    //    int screenYRes = ::GetDeviceCaps(dc, VERTRES);
+    int screenYRes = ::GetDeviceCaps(dc, VERTRES);
     int logPPIScreenX = ::GetDeviceCaps(dc, LOGPIXELSX);
     int logPPIScreenY = ::GetDeviceCaps(dc, LOGPIXELSY);
     m_previewPrintout->SetPPIScreen(logPPIScreenX, logPPIScreenY);
@@ -390,15 +388,16 @@ void wxWindowsPrintPreview::DetermineScaling()
     int printerXRes = 1500;
     int printerYRes = 2500;
 
-    if (printerDC.GetHDC())
+    dc = GetHdcOf(printerDC);
+    if ( dc )
     {
-        printerWidth = ::GetDeviceCaps((HDC) printerDC.GetHDC(), HORZSIZE);
-        printerHeight = ::GetDeviceCaps((HDC) printerDC.GetHDC(), VERTSIZE);
-        printerXRes = ::GetDeviceCaps((HDC) printerDC.GetHDC(), HORZRES);
-        printerYRes = ::GetDeviceCaps((HDC) printerDC.GetHDC(), VERTRES);
+        printerWidth = ::GetDeviceCaps(dc, HORZSIZE);
+        printerHeight = ::GetDeviceCaps(dc, VERTSIZE);
+        printerXRes = ::GetDeviceCaps(dc, HORZRES);
+        printerYRes = ::GetDeviceCaps(dc, VERTRES);
 
-        int logPPIPrinterX = ::GetDeviceCaps((HDC) printerDC.GetHDC(), LOGPIXELSX);
-        int logPPIPrinterY = ::GetDeviceCaps((HDC) printerDC.GetHDC(), LOGPIXELSY);
+        int logPPIPrinterX = ::GetDeviceCaps(dc, LOGPIXELSX);
+        int logPPIPrinterY = ::GetDeviceCaps(dc, LOGPIXELSY);
 
         m_previewPrintout->SetPPIPrinter(logPPIPrinterX, logPPIPrinterY);
         m_previewPrintout->SetPageSizeMM(printerWidth, printerHeight);
@@ -414,7 +413,7 @@ void wxWindowsPrintPreview::DetermineScaling()
 
     // At 100%, the page should look about page-size on the screen.
     m_previewScale = (float)((float)screenWidth/(float)printerWidth);
-    m_previewScale = m_previewScale * (float)((float)screenXRes/(float)printerYRes);
+    m_previewScale = m_previewScale * (float)((float)screenYRes/(float)printerYRes);
 }
 
 /****************************************************************************