gui: Add RenderTarget struct, an IPC helper class

gui/rendertarget.h

@@ -0,0 +1,15 @@
+#ifndef RENDERTARGET_H
+#define RENDERTARGET_H
+#include <QString>
+struct RenderTarget
+{
+  public:
+	QString path;
+	int page;
+	friend QDataStream &operator<<(QDataStream &out, const RenderTarget &rc);
+	friend QDataStream &operator>>(QDataStream &in, RenderTarget &rc);
+};
+
+QDataStream &operator<<(QDataStream &out, const RenderTarget &rc);
+QDataStream &operator>>(QDataStream &in, RenderTarget &rc);
+#endif // RENDERTARGET_H