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：3 C1 F+ P/ a b: l1 ~/ z
Name = (WCHAR *) L"Poke"; ; o5 R4 T+ g4 A' g2 L " _" k; u) z3 r5 H. ?4 Q. d
hr = m_pDisp->GetIDsOfNames ( 4 K |6 D$ _& i/ M IID_NULL, // reserved # z# I% h' e# y0 W- Y0 M &Name, // Array of names to get IDs for & x1 v& C/ \2 q- B7 O 1, // # of names in the array3 C4 B. I1 j, m
LOCALE_SYSTEM_DEFAULT, // System locale9 _" a( a( m( ^5 V7 r: f
&pokeID); // Array of IDs to fill on output " {' n) l; x0 d' x8 g! n$ ^. u ' J; A/ _( k6 @5 K if (hr) % ]7 {# }1 T% e { + ]8 J* u7 K7 V+ ?8 W8 j' |' _1 p MessageBox ("Get Poke Unsuccessful");+ w* Z. R5 z* ?* F2 S; T+ M8 b
return; - q7 b; y& L: `6 \$ i } - j& C. M& o1 Q( t* O: [ a' _$ c: N: M p/ e# J6 Q/**************************传递数据给extend**************************************/ , s' V! |8 d9 i7 I" G3 w. Q# y2 n pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( q4 E' [* C3 H( {+ L3 y8 B) v 4 y) `3 N8 c2 ^( }8 Q4 D4 r. P
valueStr = SysAllocString((WCHAR *) L"1232");- v, o6 P+ l$ Z, O, v
VariantInit(&pokeVariant[0]); ! O9 F1 q0 @" t" G
pokeVariant[0].vt = VT_BSTR; 4 n, e, D7 A: n; d1 e, ] pokeVariant[0].bstrVal = valueStr; ( E2 I# a, k" q7 H; e9 @; | : F/ r `2 [/ ^: e$ }. _" y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( _, d$ l, G1 f% g5 M
VariantInit(&pokeVariant[1]); 7 c+ i0 `6 N0 J# a$ @ pokeVariant[1].vt = VT_BSTR; " [3 |; g2 m, _) Z$ `$ v* _ pokeVariant[1].bstrVal = itemStr; 4 D4 j' ^* B- W9 J; g4 e, m! ?6 P. U
topicStr = SysAllocString((WCHAR *) L"system");0 T6 x+ z; `' J" K
VariantInit(&pokeVariant[2]); # W3 @* a+ e0 O+ z- Y9 m9 I; \5 w pokeVariant[2].vt = VT_BSTR; + M/ ^7 h0 r7 m7 v/ S _& x2 _ pokeVariant[2].bstrVal = topicStr; % P2 x, N* e1 ^$ L # ?, f1 W2 W, ^8 O, l& I4 ?// Set the DISPPARAMS structure that holds the variant. $ }* ^3 D% `# x6 ~6 a 9 h( R) v/ C$ }2 ^ dp.rgvarg = pokeVariant; " P& P! j6 r. J8 \ dp.cArgs = 3;/ [) L2 m2 C, X( A0 _
dp.rgdispidNamedArgs = NULL; * k8 P$ A/ p. I9 v v* L3 z: G dp.cNamedArgs = 0; : J% F1 s' i' y. m' O+ w ; n1 Z2 {% R$ \6 Y; [// Call IDispatch::Invoke() " ]3 {* L* ~3 X4 C9 f- _1 E3 i' j: B9 q 1 R+ C8 D; V% [+ k' K3 @7 t! j- V hr = m_pDisp->Invoke(- P* r' Z- ]- S' M! K: c
pokeID," ~6 ]' i! T8 M+ W. d
IID_NULL, L+ |0 a- c' J
LOCALE_SYSTEM_DEFAULT, % |" N* I4 i& { DISPATCH_METHOD, j3 q* j* i" d! a. f7 k% P% m! D &dp,5 g h' |' x' j& ~, N) p
NULL,4 P6 L4 a$ G+ b' ~4 ?& q
&ei, # V4 Z% T8 k! e$ ^2 o &uiErr);1 |5 Z8 p( g7 C3 g$ k5 F
( l" g. \" C2 c' p SysFreeString(topicStr); # z8 B$ f6 u7 {* ` SysFreeString(itemStr);( I/ r1 t/ B& b$ i' E# E' H
SysFreeString(valueStr);/ G' V) p, e9 { j/ M
5 s5 D$ ]8 l0 V! j8 [# F, C, Y
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？？？, Y. d! T" [1 v8 G, [
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？？？？ 6 ?$ A7 G1 `4 j" { 8 I& C5 R$ J" l+ h # U$ t+ r; s& I2 G2.这是request的程序' C9 y: I/ r% ], b" `
// Request a value from Extend Z1 V1 W' V( `8 I6 \
//4 _: z) U0 i3 @: `3 F! J1 [' ~
// Initialize the variant that will hold the BSTR. Set the variant's - a- u& d8 m. m/ V0 h1 s7 A) t// type flag to indicate the fact that this variant holds a BSTR. Place the # O6 T) P. C: Z& B. Z; c// BSTR into the variant structure. c2 \0 M( _4 S! _1 u
& ]" `% G; X2 |, X- W7 s2 Q7 J* N
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ; r' a5 l$ U. y& {! L " L1 y. F, n. L S9 c! C
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# Z" j5 r. ^# O
VariantInit(&requestVariant[0]); & v/ `6 s5 Q/ y, c
requestVariant[0].vt = VT_BSTR; # `8 Z1 T: ?2 N1 A$ S+ R% k8 ~3 C0 h requestVariant[0].bstrVal = itemStr;2 u/ h% w R$ x! A
/ T$ p- }5 w/ u- B0 y3 ` topicStr = SysAllocString((WCHAR *) L"system");; i$ R% a# l; V" b: ~
VariantInit(&requestVariant[1]); , `% ?" G! r6 Y requestVariant[1].vt = VT_BSTR; % z# ^7 K; }& D& v2 e% T' ?9 w requestVariant[1].bstrVal = topicStr; , F4 c. Q+ L! U4 f - _7 S4 B5 w) u2 {// Set the DISPPARAMS structure that holds the variant. - l( k5 X: ^4 ^. z" l' V5 z4 P% d; P: K+ i1 R
dp2.rgvarg = requestVariant;4 o1 Q6 ]" H+ G% s7 H
dp2.cArgs = 2; ! I f7 \7 Q' |$ L4 B. ~$ { dp2.rgdispidNamedArgs = NULL; }. z1 b- U6 N3 D5 v; M
dp2.cNamedArgs = 0; ( f1 g. o1 r, @4 ^3 P: ^8 F: a J D- n4 W
var.vt = VT_EMPTY; ' j o: w9 ?9 i: g: H6 Q5 L8 P0 l E. e' j; M
// Call IDispatch::Invoke(): t$ H& ` Z7 b$ k
: r" N5 r2 e9 l8 P hr = m_pDisp->Invoke() `3 w, a: V h( J
requestID,5 F x2 r) r; C% l0 q: i
IID_NULL,: T& t R8 V& N! b" s& S
LOCALE_SYSTEM_DEFAULT," `' x' y0 ^, ~% [* _
DISPATCH_METHOD, 8 s) f7 O/ T Q2 w &dp2, 6 Z" z5 y0 `/ y/ ~ &var,; d8 e9 a6 F" m& F# U, t
&ei, $ N1 x a' t+ l5 N: v! t( ` &uiErr); & j/ f. Y& B1 o- X7 p8 L # x- [* _" P2 B/ s7 ] SysFreeString(topicStr);5 u1 A8 Y% \& R" C9 o: D! f
SysFreeString(itemStr);( l( ?: V B: t4 ?
请问该程序是获得extend里面的哪个值？ ' N# j+ B' w+ [5 |4 c# a. ~+ M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
