X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/77ffb5937e89927b621128789401db8921fe580f..c56ae04274fda26269c6d06be34cf59a45eb70ce:/src/os2/utilsgui.cpp

diff --git a/src/os2/utilsgui.cpp b/src/os2/utilsgui.cpp
index 74a925615d..66647fcd2e 100644
--- a/src/os2/utilsgui.cpp
+++ b/src/os2/utilsgui.cpp
@@ -1,12 +1,12 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        os2/utilsgui.cpp
+// Name:        src/os2/utilsgui.cpp
 // Purpose:     Various utility functions only available in GUI
 // Author:      David Webster
 // Modified by:
 // Created:     20.08.2003 (extracted from os2/utils.cpp)
 // RCS-ID:      $Id$
 // Copyright:   (c) David Webster
-// License:     wxWidgets licence
+// License:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
@@ -25,7 +25,6 @@
 #endif
 
 #ifndef WX_PRECOMP
-    #include "wx/setup.h"
     #include "wx/utils.h"
     #include "wx/app.h"
     #include "wx/cursor.h"
@@ -69,7 +68,7 @@ bool wxWriteResource(
     HAB                             hab = 0;
     HINI                            hIni = 0;
 
-    if (rFile != "")
+    if (!rFile.empty())
     {
         hIni = ::PrfOpenProfile(hab, (PSZ)WXSTRINGCAST rFile);
         if (hIni != 0L)
@@ -153,7 +152,7 @@ bool wxGetResource(
     wxChar                          zDefunkt[] = _T("$$default");
     char                            zBuf[1000];
 
-    if (rFile != "")
+    if (!rFile.empty())
     {
         hIni = ::PrfOpenProfile(hab, (PSZ)WXSTRINGCAST rFile);
         if (hIni != 0L)
@@ -428,8 +427,10 @@ void wxDisplaySize(
         ::DevCloseDC(hdcScreen);
         ::WinReleasePS(hpsScreen);
     }
-    *pWidth = (int)lWidth;
-    *pHeight = (int)lHeight;
+    if (pWidth)
+        *pWidth = (int)lWidth;
+    if (pHeight)
+        *pHeight = (int)lHeight;
 }
 
 void wxDisplaySizeMM(
@@ -482,7 +483,7 @@ void wxGUIAppTraits::TerminateGui(unsigned long ulHab)
 
 wxToolkitInfo & wxGUIAppTraits::GetToolkitInfo()
 {
-    static wxToolkitInfo	    vInfo;
+    static wxToolkitInfo vInfo;
     ULONG                           ulSysInfo[QSV_MAX] = {0};
     APIRET                          ulrc;
 
@@ -510,31 +511,30 @@ wxToolkitInfo & wxGUIAppTraits::GetToolkitInfo()
 // window information functions
 // ---------------------------------------------------------------------------
 
-wxString WXDLLEXPORT wxGetWindowText(
-  WXHWND                            hWnd
-)
+wxString WXDLLEXPORT wxGetWindowText( WXHWND hWnd )
 {
-    wxString                        vStr;
-    long                            lLen = ::WinQueryWindowTextLength((HWND)hWnd) + 1;
+    wxString vStr;
 
-    ::WinQueryWindowText((HWND)hWnd, lLen, vStr.GetWriteBuf((int)lLen));
-    vStr.UngetWriteBuf();
+    if ( hWnd )
+    {
+        long lLen = ::WinQueryWindowTextLength((HWND)hWnd) + 1;
+        ::WinQueryWindowText((HWND)hWnd, lLen, (PSZ)(wxChar*)wxStringBuffer(vStr, lLen));
+    }
 
     return vStr;
 }
 
-wxString WXDLLEXPORT wxGetWindowClass(
-  WXHWND                            hWnd
-)
+wxString WXDLLEXPORT wxGetWindowClass( WXHWND hWnd )
 {
-    wxString                        vStr;
-    int                             nLen = 256; // some starting value
+    wxString vStr;
+    if ( hWnd )
+    {
+        int nLen = 256; // some starting value
 
     for ( ;; )
     {
-        int                         nCount = ::WinQueryClassName((HWND)hWnd, nLen, vStr.GetWriteBuf(nLen));
+        int                     nCount = ::WinQueryClassName((HWND)hWnd, nLen, (PSZ)(wxChar*)wxStringBuffer(vStr, nLen));
 
-        vStr.UngetWriteBuf();
         if (nCount == nLen )
         {
             // the class name might have been truncated, retry with larger
@@ -545,6 +545,7 @@ wxString WXDLLEXPORT wxGetWindowClass(
         {
             break;
         }
+        }
     }
     return vStr;
 }
@@ -935,7 +936,7 @@ wxBitmap wxDisableBitmap(
     int                             j;
 
     //
-    // Bitmap must be ina double-word alligned address so we may
+    // Bitmap must be in a double-word aligned address so we may
     // have some padding to worry about
     //
     if (nLineBoundary > 0)