4c30821aa5
this patch also adds plugin_api_version to exec_flags so your plug-in can now tell if features it needs are available more plug-ins that need this will be converted once the patch to make both the stubs and the plug-ins use the same header file is in place git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@5809 212acab6-be3b-0410-9dea-997c60f758d6
142 lines
3.5 KiB
C
142 lines
3.5 KiB
C
#ifndef _EXDLL_H_
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#define _EXDLL_H_
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#include <windows.h>
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#if defined(__GNUC__)
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#define UNUSED __attribute__((unused))
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#else
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#define UNUSED
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#endif
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// only include this file from one place in your DLL.
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// (it is all static, if you use it in two places it will fail)
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#define EXDLL_INIT() { \
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g_stringsize=string_size; \
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g_stacktop=stacktop; \
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g_variables=variables; }
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// For page showing plug-ins
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#define WM_NOTIFY_OUTER_NEXT (WM_USER+0x8)
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#define WM_NOTIFY_CUSTOM_READY (WM_USER+0xd)
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#define NOTIFY_BYE_BYE 'x'
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typedef struct _stack_t {
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struct _stack_t *next;
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char text[1]; // this should be the length of string_size
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} stack_t;
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static unsigned int g_stringsize;
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static stack_t **g_stacktop;
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static char *g_variables;
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static int __stdcall popstring(char *str) UNUSED; // 0 on success, 1 on empty stack
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static void __stdcall pushstring(const char *str) UNUSED;
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static char * __stdcall getuservariable(const int varnum) UNUSED;
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static void __stdcall setuservariable(const int varnum, const char *var) UNUSED;
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enum
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{
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INST_0, // $0
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INST_1, // $1
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INST_2, // $2
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INST_3, // $3
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INST_4, // $4
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INST_5, // $5
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INST_6, // $6
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INST_7, // $7
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INST_8, // $8
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INST_9, // $9
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INST_R0, // $R0
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INST_R1, // $R1
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INST_R2, // $R2
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INST_R3, // $R3
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INST_R4, // $R4
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INST_R5, // $R5
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INST_R6, // $R6
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INST_R7, // $R7
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INST_R8, // $R8
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INST_R9, // $R9
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INST_CMDLINE, // $CMDLINE
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INST_INSTDIR, // $INSTDIR
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INST_OUTDIR, // $OUTDIR
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INST_EXEDIR, // $EXEDIR
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INST_LANG, // $LANGUAGE
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__INST_LAST
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};
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typedef struct {
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int autoclose;
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int all_user_var;
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int exec_error;
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int abort;
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int exec_reboot;
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int reboot_called;
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int XXX_cur_insttype; // deprecated
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int plugin_api_version; // used to be XXX_insttype_changed, but that was deprecated
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int silent;
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int instdir_error;
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int rtl;
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int errlvl;
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int alter_reg_view;
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int status_update;
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} exec_flags_type;
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// NSIS Plug-In Callback Messages
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enum NSPIM
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{
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NSPIM_UNLOAD, // This is the last message a plugin gets, do final cleanup
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NSPIM_GUIUNLOAD, // Called after .onGUIEnd
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};
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// Prototype for callbacks registered with extra_parameters->RegisterPluginCallback()
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// Return NULL for unknown messages
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// Should always be __cdecl for future expansion possibilities
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typedef UINT_PTR (*NSISPLUGINCALLBACK)(NSPIM);
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typedef struct {
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exec_flags_type *exec_flags;
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int (__stdcall *ExecuteCodeSegment)(int, HWND);
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void (__stdcall *validate_filename)(char *);
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BOOL (__stdcall *RegisterPluginCallback)(HMODULE, NSISPLUGINCALLBACK);
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} extra_parameters;
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// utility functions (not required but often useful)
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static int __stdcall popstring(char *str)
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{
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stack_t *th;
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if (!g_stacktop || !*g_stacktop) return 1;
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th=(*g_stacktop);
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lstrcpyA(str,th->text);
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*g_stacktop = th->next;
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GlobalFree((HGLOBAL)th);
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return 0;
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}
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static void __stdcall pushstring(const char *str)
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{
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stack_t *th;
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if (!g_stacktop) return;
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th=(stack_t*)GlobalAlloc(GPTR,sizeof(stack_t)+g_stringsize);
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lstrcpynA(th->text,str,g_stringsize);
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th->next=*g_stacktop;
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*g_stacktop=th;
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}
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static char * __stdcall getuservariable(const int varnum)
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{
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if (varnum < 0 || varnum >= __INST_LAST) return NULL;
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return g_variables+varnum*g_stringsize;
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}
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static void __stdcall setuservariable(const int varnum, const char *var)
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{
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if (var != NULL && varnum >= 0 && varnum < __INST_LAST)
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lstrcpyA(g_variables + varnum*g_stringsize, var);
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}
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#endif//_EXDLL_H_
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