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: 5 z; a. v5 G. z5 d3 [- v. e, PName = (WCHAR *) L"Poke";. v7 p; V+ m) v# } v3 |; l
- {5 A9 w5 n$ K; l, T8 ]8 a; }+ E hr = m_pDisp->GetIDsOfNames ( ! O) B* }& Q3 M9 y IID_NULL, // reserved ( D4 o+ P6 {- q; z, Q &Name, // Array of names to get IDs for " p- C' p- q% h/ G" h7 ` 1, // # of names in the array 4 [$ @+ M2 W+ z. ~/ H LOCALE_SYSTEM_DEFAULT, // System locale : q5 L }4 _+ U0 F- q+ A &pokeID); // Array of IDs to fill on output7 q# I1 N6 k: g) D1 ]
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if (hr) ! X I3 S' P& b5 x8 E/ N {" Z# X' R- O k, p
MessageBox ("Get Poke Unsuccessful"); ( [! n* `; e9 W+ e4 M# J return;6 g# a0 T* o0 Z3 F) C, V
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/**************************传递数据给extend**************************************/- t1 W2 S% _% g' j' y2 K
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; q' V4 v/ C- |' l5 P
) T9 G# `% p% d- W, x8 h& [8 j valueStr = SysAllocString((WCHAR *) L"1232");6 r5 X& [5 b6 |5 ~1 \- s! D( i4 s' R
VariantInit(&pokeVariant[0]); 4 C d" Y8 x; d; m J8 R
pokeVariant[0].vt = VT_BSTR; 7 r: G- h9 A. o+ V0 ? pokeVariant[0].bstrVal = valueStr; 7 X9 B& t# |% d # J; N. g: h1 X7 E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# P7 s1 X! y c9 u/ z8 {
VariantInit(&pokeVariant[1]); 5 g' z- z6 g, M0 F4 v
pokeVariant[1].vt = VT_BSTR; 0 a R! K3 k/ t( a) P: y1 q; u pokeVariant[1].bstrVal = itemStr; 8 B; [2 h* H1 E5 W+ V0 q' R0 K z1 ?- N/ H( n: q( @+ C
topicStr = SysAllocString((WCHAR *) L"system");7 X7 }; I/ ]0 W# d! Y- o
VariantInit(&pokeVariant[2]); % G- a* L' W0 {2 t0 ~& E& g
pokeVariant[2].vt = VT_BSTR; ( @/ t5 F7 X) S) r1 V2 T pokeVariant[2].bstrVal = topicStr;1 I) c0 a0 O' c$ N k% o
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// Set the DISPPARAMS structure that holds the variant. 3 v# S, P; g9 r4 Y: b6 M1 e5 \& p8 W
dp.rgvarg = pokeVariant;) N/ s6 {2 f2 G3 Z
dp.cArgs = 3;+ ?0 c8 ^$ V4 k! ~# r
dp.rgdispidNamedArgs = NULL; * b9 _4 F2 P! f1 L# G0 G/ h4 E dp.cNamedArgs = 0;. Y4 z1 F7 l. T: G; B
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// Call IDispatch::Invoke(): ?$ v/ @( J* N# U
) ]4 P8 Y, J# \4 S4 L0 z$ G7 c hr = m_pDisp->Invoke(3 X/ |, {7 M1 u% H4 a
pokeID, j7 K8 W* x+ k IID_NULL,! ?% H' [6 b5 f: `
LOCALE_SYSTEM_DEFAULT, 3 V- W% F. m* E _6 ] DISPATCH_METHOD," |3 W9 Y" D; Y1 j5 B; n7 r
&dp, 3 i/ M H+ i9 _* @* `5 n) b, n NULL,: K& j+ e9 h% l% V) w
&ei,2 j( \6 f, n) ?5 e4 c! }
&uiErr); 7 w$ |; ?4 F" Y; a: v" t3 i# E1 s/ H% P% S" n# a) R! l. r' B
SysFreeString(topicStr); a- s/ f- t2 d/ V
SysFreeString(itemStr); 5 c3 i* e% ^0 }4 P; O5 t" A SysFreeString(valueStr);7 d& ?6 |& q- c+ z7 }) F
' t+ b [3 {2 D0 m$ r4 G" k6 ^: p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???# W) [+ ]0 A( R$ _# S% Q) b9 c
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????5 C$ \. m- e+ I0 `7 p4 m
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2.这是request的程序 . w) E( a7 ?2 x- K$ |// Request a value from Extend! H$ F) l4 f6 f$ y- g; }
// 2 n3 K% y: v; g T) B) s0 z( h// Initialize the variant that will hold the BSTR. Set the variant's ! }6 |) d5 I' u' o+ {# _// type flag to indicate the fact that this variant holds a BSTR. Place the/ j# a7 |2 a3 f9 v, o& y% y
// BSTR into the variant structure. + w" v% k J8 P: g , H/ e4 }! i* m% u requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) v, x E( n: |) Y# i / z+ w& \8 p; D. ~3 F8 v7 A; W5 k9 Y& c
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. Z4 w7 z6 N! ^+ Q) M
VariantInit(&requestVariant[0]); ! E7 W [4 `( G4 x/ U9 o: Q% P/ o requestVariant[0].vt = VT_BSTR; % J6 q3 t) Z; Y7 q requestVariant[0].bstrVal = itemStr;9 G# O. V# d- R9 e# p E
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topicStr = SysAllocString((WCHAR *) L"system"); * P$ X* D2 m& A" K% v0 j: u VariantInit(&requestVariant[1]); 2 D; B& A- Z/ V2 F8 l- l6 |, V. Q requestVariant[1].vt = VT_BSTR; # \2 A6 I) }" z requestVariant[1].bstrVal = topicStr;1 D" X9 T1 n+ Z$ G: G
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// Set the DISPPARAMS structure that holds the variant." R# H s, N7 Q+ n8 }# d