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：7 J! p8 E- b* o L- A
Name = (WCHAR *) L"Poke";, c; ]; i* V! ~, C6 b" U
+ s5 z8 _' q0 ~ D& @. w. i, x hr = m_pDisp->GetIDsOfNames (; b5 s! W' e- G$ }0 C) o; {# H
IID_NULL, // reserved4 v6 N% b# C4 g2 x: D
&Name, // Array of names to get IDs for ' K N3 ?- v7 b y 1, // # of names in the array) N# V2 o& f& p5 n% P: b
LOCALE_SYSTEM_DEFAULT, // System locale / ]: R8 g9 h6 i0 i8 \6 L) b( P8 }- d &pokeID); // Array of IDs to fill on output8 l2 c8 t% _/ E2 x* D
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if (hr) . m* ~% q% @9 b' N" [; c7 w8 I {; T1 m# A4 m" y* u- m C) X
MessageBox ("Get Poke Unsuccessful");# _" T. A0 g) C0 I- h
return; 4 u7 d# @# m) p. p } 3 a. ]0 L7 e( l6 ~6 a. e. m: t, u/ W0 q. x1 C y2 q6 u3 ?( Z0 `
/**************************传递数据给extend**************************************/+ h5 O( i7 W2 A' `2 N9 i! P
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 V, z- z& k# c" J0 h" P) v: V+ V+ ^
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valueStr = SysAllocString((WCHAR *) L"1232");; c s( T/ ?: R! @0 D; t+ Z
VariantInit(&pokeVariant[0]); / }( j: ~7 s* E# P pokeVariant[0].vt = VT_BSTR;$ y- ?) [% U { d
pokeVariant[0].bstrVal = valueStr; / R B& Q# ?0 ^ L8 O: r* r) w0 j# a& d ^0 b1 }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; @4 V" @# w1 c" d+ M& ]" W VariantInit(&pokeVariant[1]); ( k# Y- b* d: h: A
pokeVariant[1].vt = VT_BSTR;6 _5 {1 g! g) v" H/ s& J5 a
pokeVariant[1].bstrVal = itemStr; / ?2 O" A3 C h" u P( q% k# ^0 f7 J- w$ H* _" j% C# H6 U
topicStr = SysAllocString((WCHAR *) L"system"); W6 X( Y& Q7 u; U VariantInit(&pokeVariant[2]); 1 o) W; `/ {6 f4 l l4 m( r
pokeVariant[2].vt = VT_BSTR; 2 M: |7 F1 ?" `, E pokeVariant[2].bstrVal = topicStr; - a3 q" V1 p0 ^( w& F( ?+ Y- I' s0 g$ ?3 `
// Set the DISPPARAMS structure that holds the variant.' S8 P$ h1 p$ o* P' R9 f4 u3 d. A
. r! r# R1 x; T( T, c dp.rgvarg = pokeVariant; 8 ^/ s% c+ m: }6 W dp.cArgs = 3; * }* g1 @/ l# E% ` dp.rgdispidNamedArgs = NULL; . u T: l/ ^2 {1 G' w dp.cNamedArgs = 0;& I' r" a0 Z2 _+ x
k1 a l" b m3 Z6 q% n% \
// Call IDispatch::Invoke(); _% B3 d( @0 d3 r7 `
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hr = m_pDisp->Invoke(2 {6 |" D; ^9 O# ~/ M* F
pokeID, q* _/ y6 \0 W, }; h( e$ w" }1 Y IID_NULL, ! c$ s! J1 b0 i LOCALE_SYSTEM_DEFAULT,' K7 B6 n( v; c+ c8 v! @
DISPATCH_METHOD, ' v) I$ {* w$ ~8 ~1 ^7 A# F &dp,1 @' z7 N) F* W. d9 d" R% `- x
NULL, & V- N+ ?; D6 b* { &ei, 1 b' |9 w2 r3 D' H &uiErr); V5 T/ t% L4 j& `: B- k) s, j! \$ T# r% s$ O
SysFreeString(topicStr);8 l3 X. B+ C8 w; t5 n1 ?
SysFreeString(itemStr);6 G4 x+ C7 i2 w( y( [6 w: E7 X7 P
SysFreeString(valueStr); ) ?2 K _1 Q6 q, f6 b' V& z0 G5 _, s& i3 N: [/ g0 i! T+ L0 I
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？？？ 1 j. k8 {3 S5 B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？？？？ 9 u8 n9 c* |! Z4 d6 d9 N [3 F, \. d# {
5 m& Q9 z/ m+ L/ I2 o2.这是request的程序 , K* |5 Q7 B J W3 Z7 o// Request a value from Extend- e) Y; @ s9 ?# b% M2 k
//0 N6 j( w0 t' Y1 B
// Initialize the variant that will hold the BSTR. Set the variant's# m+ X O* p4 ?7 B
// type flag to indicate the fact that this variant holds a BSTR. Place the& r: n/ B w0 ~1 }/ F4 x' N* e
// BSTR into the variant structure.4 y: V" v0 r; }6 W. V _6 r7 G
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , |( u+ M- u5 O1 t; b3 M [' I . Z* P5 [: f$ }3 @9 ~* ^& v
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 x# C D5 O4 I/ p# _ VariantInit(&requestVariant[0]); 3 i& g0 c5 u0 |. d requestVariant[0].vt = VT_BSTR;) n6 }+ `# N. ^3 D* n* U8 |" Y) }) H
requestVariant[0].bstrVal = itemStr;8 x; H+ W- B+ c1 z
/ }" [+ I4 ^, ]8 o* t( v/ |( A! U* m$ J topicStr = SysAllocString((WCHAR *) L"system");% T' |9 I/ O' O2 @" {4 Z4 t. e
VariantInit(&requestVariant[1]); $ b9 V! {% Z1 m& ]& q requestVariant[1].vt = VT_BSTR; 5 v. G/ v2 F3 a3 m/ c requestVariant[1].bstrVal = topicStr;) k0 e! Z' A5 Y/ x
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// Set the DISPPARAMS structure that holds the variant.& l. I- O/ w" }2 U
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dp2.rgvarg = requestVariant; ' a# h4 ~! F* a6 `/ b) y dp2.cArgs = 2; & ^$ a) q- C8 j dp2.rgdispidNamedArgs = NULL; M) s x( \! ]3 U7 { dp2.cNamedArgs = 0;7 P6 F. i! d" _- E, o
4 b9 \. d- h' C; l8 { var.vt = VT_EMPTY; * B: B0 M7 f) w$ g0 m & r8 l+ E$ f e0 r0 m* F$ Q k// Call IDispatch::Invoke()" e8 D X4 U' l0 M; s# o
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hr = m_pDisp->Invoke(' s. I; x8 Q. s1 K) X
requestID, : b: H' K$ q& K IID_NULL,# S* n* w2 l$ `$ {% Y J2 l: [
LOCALE_SYSTEM_DEFAULT, 7 m m9 n C [4 I DISPATCH_METHOD, 8 r0 J" C- l5 K, ~, ~# I% m" w; g &dp2, 1 C9 [/ U3 m. l4 W Z1 I1 { &var,2 s: J5 p, c3 N2 a6 w( B `9 C+ F
&ei, 0 ^, \; A/ w5 x: D4 x &uiErr);; l3 p( |1 j- T3 }4 I) k
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SysFreeString(topicStr);6 |/ n8 A. } c- R7 k, L# P
SysFreeString(itemStr);- V$ K5 ~9 ~$ q6 k3 C% J9 s
请问该程序是获得extend里面的哪个值？ * b9 r( a9 M. a8 X6 X6 c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
