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user.exe: Prepend a valid bitmap header when copying a bitmap resource to a file.

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This commit is contained in:
Alexandre Julliard 2009-12-29 21:55:59 +01:00
parent c861c3e42e
commit 2a00c86a98
1 changed files with 13 additions and 2 deletions
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15
dlls/user.exe16/user.c
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@ -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 );
}