- Improved installation types behaviour

- .onSelChange no longer called when the components page is created
- First section is selected at compile time - changes in .onInit stick
- Added SectionSetSize / SectionGetSize
- Added SetCurInstType / GetCurInstType
- Added InstTypeSetText / InstTypeGetText - ability to change (and add and remove) installation types on runtime
- NSIS_MAX_INST_TYPES is now 32 by default
- InstType texts are now processed ($0, $1, etc. can be used)
- Added /o switch for Section - unselected by default


git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@2563 212acab6-be3b-0410-9dea-997c60f758d6

Source/exehead/ui.h

@@ -29,4 +29,37 @@ extern int g_is_uninstaller;
 void NSISCALL build_g_logfile(void);
 #endif
 
+// sent to the last child window to tell it that the install thread is done
+#define WM_NOTIFY_INSTPROC_DONE (WM_USER+0x4)
+
+// sent to every child window to tell it it can start executing NSIS code
+#define WM_NOTIFY_START (WM_USER+0x5)
+
+// sent to the outer window to tell it to go to the next inner window
+#define WM_NOTIFY_OUTER_NEXT (WM_USER+0x8)
+
+// sent to every child window to tell it it is closing soon
+#define WM_NOTIFY_INIGO_MONTOYA (WM_USER+0xb)
+
+// update message used by DirProc and SelProc for space display
+#define WM_IN_UPDATEMSG (WM_USER+0xf)
+
+// the selected insttype has changed
+#define WM_NOTIFY_INSTTYPE_CHANGE (WM_USER+0x32)
+
+// custom pages should send this message to let NSIS know they're ready
+#define WM_NOTIFY_CUSTOM_READY (WM_USER+0xd)
+
+// simulates clicking on the tree
+#define WM_TREEVIEW_KEYHACK (WM_USER+0x13)
+
+// section text changed
+#define WM_NOTIFY_SECTEXT WM_USER+0x17
+
+// section flags changed
+#define WM_NOTIFY_SECFLAGS WM_USER+0x18
+
+// notifies a component selection change (.onMouseOverSection)
+#define WM_NOTIFY_SELCHANGE WM_USER+0x19
+
 #endif//_UI_H_