libpipi: make gdiplus.cpp build on older Windows versions.

git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@3073 92316355-f0b4-4df1-b90c-862c8a59935f

pipi/codec/gdiplus.cpp

@@ -23,7 +23,8 @@
 #include <string.h>
 
 #include <windows.h>
-#include <gdiplus.h>
+
+#include <Gdiplus.h>
 
 #include "pipi.h"
 #include "pipi_internals.h"
@@ -31,10 +32,9 @@
 extern "C" pipi_image_t *pipi_load_gdiplus(const char *name)
 {
     size_t len;
-    if(mbstowcs_s(&len, NULL, 0, name, _TRUNCATE) != 0)
-        return NULL;
-    wchar_t *wname = new wchar_t[len];
-    if(mbstowcs_s(NULL, wname, len, name, _TRUNCATE) != 0)
+    len = mbstowcs(NULL, name, 0);
+    wchar_t *wname = new wchar_t[len + 1];
+    if(mbstowcs(wname, name, len + 1) != (size_t)-1)
     {
         delete[] wname;
         return NULL;
@@ -55,7 +55,7 @@ extern "C" pipi_image_t *pipi_load_gdiplus(const char *name)
     Gdiplus::BitmapData bdata;
     Gdiplus::Rect rect(0, 0, b->GetWidth(), b->GetHeight());
 
-    if(b->LockBits(&rect, Gdiplus::ImageLockModeRead,
+    if(b->LockBits(rect, Gdiplus::ImageLockModeRead,
                    PixelFormat32bppARGB, &bdata) != Gdiplus::Ok)
     {
         delete b;
@@ -109,10 +109,9 @@ extern "C" int pipi_save_gdiplus(pipi_image_t *img, const char *name)
     }
 
     size_t len;
-    if(mbstowcs_s(&len, NULL, 0, name, _TRUNCATE) != 0)
-        return NULL;
-    wchar_t *wname = new wchar_t[len];
-    if(mbstowcs_s(NULL, wname, len, name, _TRUNCATE) != 0)
+    len = mbstowcs(NULL, name, 0);
+    wchar_t *wname = new wchar_t[len + 1];
+    if(mbstowcs(wname, name, len + 1) != (size_t)-1)
     {
         delete[] wname;
         return -1;
@@ -128,7 +127,7 @@ extern "C" int pipi_save_gdiplus(pipi_image_t *img, const char *name)
     Gdiplus::BitmapData bdata;
     Gdiplus::Rect rect(0, 0, img->w, img->h);
 
-    if(b->LockBits(&rect, Gdiplus::ImageLockModeWrite,
+    if(b->LockBits(rect, (unsigned int)Gdiplus::ImageLockModeWrite,
                    PixelFormat32bppARGB, &bdata) != Gdiplus::Ok)
     {
         delete b;