Alexandre Julliard : user.exe: Prepend a valid bitmap header when copying a bitmap resource to a file.
Alexandre Julliard
julliard at winehq.org
Wed Dec 30 10:18:12 CST 2009
Module: wine
Branch: master
Commit: 2a00c86a98a60db6e9b16d2f1a61dae67c87c1cc
URL: http://source.winehq.org/git/wine.git/?a=commit;h=2a00c86a98a60db6e9b16d2f1a61dae67c87c1cc
Author: Alexandre Julliard <julliard at winehq.org>
Date: Tue Dec 29 21:55:59 2009 +0100
user.exe: Prepend a valid bitmap header when copying a bitmap resource to a file.
---
dlls/user.exe16/user.c | 15 +++++++++++++--
1 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/dlls/user.exe16/user.c b/dlls/user.exe16/user.c
index 6b0f09a..7521c54 100644
--- a/dlls/user.exe16/user.c
+++ b/dlls/user.exe16/user.c
@@ -2009,13 +2009,22 @@ HANDLE16 WINAPI LoadImage16(HINSTANCE16 hinst, LPCSTR name, UINT16 type, INT16 c
HBITMAP ret = 0;
char *ptr;
static const WCHAR prefixW[] = {'b','m','p',0};
+ BITMAPFILEHEADER header;
WCHAR path[MAX_PATH], filename[MAX_PATH];
HANDLE file;
+ DWORD size;
filename[0] = 0;
if (!(hRsrc = FindResource16( hinst, name, (LPCSTR)RT_BITMAP ))) return 0;
if (!(handle = LoadResource16( hinst, hRsrc ))) return 0;
if (!(ptr = LockResource16( handle ))) goto done;
+ size = SizeofResource16( hinst, hRsrc );
+
+ header.bfType = 0x4d42; /* 'BM' */
+ header.bfReserved1 = 0;
+ header.bfReserved2 = 0;
+ header.bfSize = sizeof(header) + size;
+ header.bfOffBits = 0; /* not used by the 32-bit loading code */
if (!GetTempPathW( MAX_PATH, path )) goto done;
if (!GetTempFileNameW( path, prefixW, 0, filename )) goto done;
@@ -2023,8 +2032,10 @@ HANDLE16 WINAPI LoadImage16(HINSTANCE16 hinst, LPCSTR name, UINT16 type, INT16 c
file = CreateFileW( filename, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0 );
if (file != INVALID_HANDLE_VALUE)
{
- DWORD written, size = SizeofResource16( hinst, hRsrc );
- BOOL ok = WriteFile( file, ptr, size, &written, NULL ) && (written == size);
+ DWORD written;
+ BOOL ok;
+ ok = WriteFile( file, &header, sizeof(header), &written, NULL ) && (written == sizeof(header));
+ if (ok) ok = WriteFile( file, ptr, size, &written, NULL ) && (written == size);
CloseHandle( file );
if (ok) ret = LoadImageW( 0, filename, IMAGE_BITMAP, cx, cy, flags | LR_LOADFROMFILE );
}
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