private void closePackage_Click(object sender, EventArgs e) { if (this.mCurrentPackage != 0) { this.DestroyEffect(); if (ResourceMgr.ClosePackage(this.mCurrentPackage)) { this.mCurrentPackage = 0; //this.mScenePackage = 0; this.mLoadedResources = null; this.openPackageToolStripMenuItem.Enabled = true; this.closePackageToolStripMenuItem.Enabled = false; } } }