08310d1d9e259c91d4db4e022376d66c23675f7d
braney
  Wed Jul 28 12:29:48 2010 -0700
add transparency for 32-bit PNG.  Tim needs it for drag scroll
diff --git src/inc/memgfx.h src/inc/memgfx.h
index 01c3bfc..b206062 100644
--- src/inc/memgfx.h
+++ src/inc/memgfx.h
@@ -102,6 +102,9 @@
 void mgFree(struct memGfx **pmg);
 /* Free up memory raster. */
 
+void mgClearPixelsTrans(struct memGfx *mg);
+/* Set all pixels to transparent. */
+
 void mgClearPixels(struct memGfx *mg);
 /* Set all pixels to background. */