+void clear_pixmap(Pixmap p, int x, int y, int w, int h)
+{
+ Picture pict = XRenderCreatePicture(server.dsp, p, XRenderFindVisualFormat(server.dsp, server.visual), 0, 0);
+ XRenderColor col = { .red=0, .green=0, .blue=0, .alpha=0 };
+ XRenderFillRectangle(server.dsp, PictOpSrc, pict, &col, x, y, w, h);
+ XRenderFreePicture(server.dsp, pict);
+}