我现在用c++编写了一个程序，希望能够和extend交换数据，以及自动对extend进行一些操作。我参阅了例子里的关于OLE AUTOMATION方面的c++程序，但搞得不是很懂。比如说，c++程序向extend发送一个数据：. L2 ^; ]6 ]! D' u7 K8 g8 A9 I1 ]1 t
Name = (WCHAR *) L"Poke";) t4 C. }2 k9 w3 r
- x$ V+ i) ?) f: k! D; P
hr = m_pDisp->GetIDsOfNames (4 Z- R" }9 w/ T4 P+ `4 Q
IID_NULL, // reserved & G1 Y% r1 h1 B" @! I &Name, // Array of names to get IDs for 6 y2 {! L! W' r$ `* F7 Q 1, // # of names in the array ( W$ e5 j+ ?- j* J! Y LOCALE_SYSTEM_DEFAULT, // System locale* o; h- j( [4 e
&pokeID); // Array of IDs to fill on output # [9 n1 O/ P3 i3 z! V " T/ ~/ e' O' d9 a3 e if (hr)4 k; R1 D, t; q4 P. A. @' t
{ y5 j! B* x! \( r: o% a4 ] MessageBox ("Get Poke Unsuccessful"); $ j; a* t6 E" p4 k return;5 O/ W8 }" ?2 `$ {! _/ T/ @
} ; F9 M" {, s+ V# U) v) ?, w* e8 s" T# `$ _. q
/**************************传递数据给extend**************************************/ 5 ~: }* ?$ F0 Y( v5 E pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; J; i% a( o# n- d - [! A* l3 B4 O4 j1 e valueStr = SysAllocString((WCHAR *) L"1232"); # Q8 z( W. b. W" e+ ?' P* d5 j VariantInit(&pokeVariant[0]); 5 m: |$ ~% ?7 K+ T4 F6 a. L
pokeVariant[0].vt = VT_BSTR; 9 ^6 u9 O- j& ^3 j8 H pokeVariant[0].bstrVal = valueStr; 8 X2 c8 W; u6 W n- C1 t+ T \: f( k' u
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" e% V! l: z5 _6 `1 V! Y
VariantInit(&pokeVariant[1]); 7 e, m. E2 Q" v8 ], A4 |1 Y pokeVariant[1].vt = VT_BSTR;6 s! Z! O+ [ U. x5 q3 U! I* U; U. Y3 ^
pokeVariant[1].bstrVal = itemStr;+ s. K+ [" Y9 D1 ?, L
6 J" F( V4 _3 J topicStr = SysAllocString((WCHAR *) L"system");2 E, I9 R4 _. C$ I. \; H* C
VariantInit(&pokeVariant[2]); # j; j/ \5 _6 s% z5 m5 W
pokeVariant[2].vt = VT_BSTR; & V% z- \3 p: M, c% ^+ Z$ Q$ q" h4 B pokeVariant[2].bstrVal = topicStr; # B& g, x* p4 J; |1 m7 U3 l 3 v c, \, ? {* @( ^1 h {// Set the DISPPARAMS structure that holds the variant. * @; f z5 r0 w. `" x% Q& _( p, D9 E
dp.rgvarg = pokeVariant; . R' n$ C0 s& a1 i dp.cArgs = 3;& t5 u; Y2 l: E0 X9 `( k
dp.rgdispidNamedArgs = NULL;, u- [/ k2 s! k% y4 M* p7 _# g# F. q
dp.cNamedArgs = 0;" x. I7 W+ t* T# A! L" G- U
3 I0 i$ q$ C( W; W. E3 C
// Call IDispatch::Invoke()6 K k% U, T8 {' g- ?; Y6 O/ E
) e4 N- ~0 q( k! t" V hr = m_pDisp->Invoke( 0 b; j' d/ ?3 a3 m' N9 m pokeID,% \" K2 ?' X% _$ {: H- r
IID_NULL, $ A+ N' w4 w+ [) ` LOCALE_SYSTEM_DEFAULT, & Q7 O( T8 A5 ]; I; b4 ~ DISPATCH_METHOD,$ P/ p4 K# w6 s V( H: K: o/ d% I
&dp,9 ]3 x' g0 H; s; {# M2 W
NULL, 6 Y* ?/ P& l6 C3 |- v4 e &ei, 6 b4 f2 _3 e$ k+ S2 Q &uiErr);7 f2 E+ I t" H- y, U% N; G/ G
8 e5 u/ A0 z0 F! I8 Q- a
SysFreeString(topicStr);# w; _. F a$ r% Z3 r, f
SysFreeString(itemStr);- r8 l7 B4 C$ O2 {# W
SysFreeString(valueStr); 7 W6 `7 K1 r2 J9 J) F3 f! W- t. v
现在这个程序可以实现将1232这个数据发送到extend，extend有一个对话框弹出并出现1232这个数据，不知道这个对话框为什么会弹出并显示这个数据？？？9 Z7 `% H- n. i
此外我希望将这个数据赋给extend程序里面的一个变量，请问如何实现？？？？ , C# L E0 j) F# U, m! g3 A4 U, y0 t: K+ d+ k1 i& `' o7 n( ~2 k
5 T1 A8 u5 v8 N+ h7 e2.这是request的程序 - ?/ C( w2 M* d$ G0 J+ G* Z// Request a value from Extend ( I1 d/ p. }7 P# i//5 m% U R. C# g
// Initialize the variant that will hold the BSTR. Set the variant's; D. ]+ Z7 [7 l: t: z
// type flag to indicate the fact that this variant holds a BSTR. Place the * U, x- h; ?& L4 T/ a6 R+ f// BSTR into the variant structure.0 F. z6 k1 Y. d" r2 D, h0 C
( a, Q; h5 S' g/ H
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 b( Q9 H1 E; d5 H# H6 F ! z$ `7 x! {! I8 I
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # J2 S. Q" P' K9 G1 z/ U VariantInit(&requestVariant[0]); + o# Z( V9 n3 `2 U; k j% a! |+ ~4 b. z
requestVariant[0].vt = VT_BSTR;5 d) a2 j' m, Z' @* N* E" [( z
requestVariant[0].bstrVal = itemStr;! |3 ^9 w, Z. D- T/ B6 ~# m* ]' E
2 C1 }( L# |- m topicStr = SysAllocString((WCHAR *) L"system"); s3 J$ [; r b+ Q* _$ H+ l VariantInit(&requestVariant[1]); 1 S. A& m D. ?5 Z5 ^ requestVariant[1].vt = VT_BSTR; ( U* O; F8 U7 q" w requestVariant[1].bstrVal = topicStr;, A' y7 h$ T8 Q- E: k9 w
h, h$ ]2 c! k8 T, t7 Q// Set the DISPPARAMS structure that holds the variant.4 ^1 r/ ]6 O* c1 z1 p
( I9 f$ C$ [3 Z dp2.rgvarg = requestVariant; 7 p1 S" b3 n* I- R dp2.cArgs = 2;3 U1 p/ E, ?. X2 p7 L. l! l
dp2.rgdispidNamedArgs = NULL;$ E0 O- S2 N- I% l
dp2.cNamedArgs = 0;. v7 V( s2 d1 W9 {) ]$ S$ s1 X
- b \7 h% f: g: C
var.vt = VT_EMPTY; 9 s0 T: E D$ s ~1 q. `# I * c1 _% ~7 R `3 F# _// Call IDispatch::Invoke()5 n; \* b' S# o6 c8 E- W; x% ?* F
+ F' I! _/ m: Y/ E hr = m_pDisp->Invoke( + e) U8 w, Z8 c4 P requestID, n# ~4 ~2 J3 A4 e IID_NULL, 0 f z: s# A; ?! ` LOCALE_SYSTEM_DEFAULT,; I5 J W. m( `: I9 I# ]! P$ L
DISPATCH_METHOD,, {; x' K; C3 |
&dp2,! N1 E+ s% E- U7 n2 @
&var, ( a# _: j* ~% |$ a* t+ M &ei, * ^3 \3 X! |/ C; S/ t! ]* M &uiErr); / X& |- [ O, {' w9 x & O, r4 {5 F! z' K! `- h( r0 d SysFreeString(topicStr); : D$ T9 I7 \$ O& ?& S SysFreeString(itemStr); 5 A4 [1 x* d0 u" h8 `; ^! b% R请问该程序是获得extend里面的哪个值？# B; c. F- d1 t7 }- I, y/ ^
如果我希望获得extend程序里面的某个变量的数值，那个c++程序应该如何实现？？？？
发表于 2008-11-25 19:37:03
