Fail if less then one entire line requested in GetBitmapBits32.

1f43de34 · Uwe Bonnes · Alexandre Julliard · cb505623 · 1f43de34
Commit 1f43de34 authored Nov 07, 1998 by Uwe Bonnes Committed by Alexandre Julliard Nov 07, 1998
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bitmap.c objects/bitmap.c +7 -0

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--- a/objects/bitmap.c
+++ b/objects/bitmap.c
@@ -288,6 +288,13 @@ LONG WINAPI GetBitmapBits32(
    height = count / bmp->bitmap.bmWidthBytes;
    if (height > bmp->bitmap.bmHeight) height = bmp->bitmap.bmHeight;
    count = height * bmp->bitmap.bmWidthBytes;
+    if (count == 0)
+      {
+	WARN(bitmap, "Less then one entire line requested\n");
+	GDI_HEAP_UNLOCK( hbitmap );
+	return 0;
+      }
+

    TRACE(bitmap, "(%08x, %ld, %p) %dx%d %d colors fetched height: %ld\n",
 	    hbitmap, count, bits, bmp->bitmap.bmWidth, bmp->bitmap.bmHeight,