+class PNGCompression : public BC_TumbleTextBox
+{
+public:
+ PNGCompression(PNGConfigVideo *gui, int x, int y);
+ int handle_event();
+ PNGConfigVideo *gui;
+};
+
+class PNGDepth8bit : public BC_Radial
+{
+public:
+ PNGDepth8bit(PNGConfigVideo *gui, int x, int y);
+ int handle_event();
+
+ PNGConfigVideo *gui;
+};
+
+class PNGDepth16bit : public BC_Radial
+{
+public:
+ PNGDepth16bit(PNGConfigVideo *gui, int x, int y);
+ int handle_event();
+
+ PNGConfigVideo *gui;
+};