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wing32: Avoid crash in WinGGetDIBPointer when called with NULL bitmap info.

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Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56135
This commit is contained in:
Bernhard Übelacker 2024-01-14 10:24:45 +01:00 • committed by Alexandre Julliard
parent edf0635ed4
commit 0f6a66e919
2 changed files with 4 additions and 1 deletions
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3
dlls/wing32/tests/wing32.c
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@ -51,6 +51,9 @@ static void test_WinGGetDIBPointer(void)
dib = WinGGetDIBPointer(NULL, NULL);
ok(dib == NULL, "WinGGetDIBPointer returned unexpected value %p\n", dib);
dib = WinGGetDIBPointer(bmp, NULL);
ok(dib != NULL, "WinGGetDIBPointer failed\n");
dib = WinGGetDIBPointer(bmp, &bmi);
ok(dib != NULL, "WinGGetDIBPointer failed\n");

2
dlls/wing32/wing32.c
View file

@ -72,7 +72,7 @@ void * WINAPI WinGGetDIBPointer( HBITMAP hbmp, BITMAPINFO *bmi )
if (GetObjectW( hbmp, sizeof(ds), &ds ) == sizeof(ds))
{
bmi->bmiHeader = ds.dsBmih;
if (bmi) bmi->bmiHeader = ds.dsBmih;
return ds.dsBm.bmBits;
}
return NULL;