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:6 |5 C& x6 U! t: T5 a, j
Name = (WCHAR *) L"Poke"; * P& ?: P, r1 Y* d9 @% ^ / T# k% w) L1 ]; r- w- x hr = m_pDisp->GetIDsOfNames (' o$ O3 K- Y: }. X
IID_NULL, // reserved , F0 u* |* O4 c$ p &Name, // Array of names to get IDs for3 k1 v% c. I$ ]1 g# S
1, // # of names in the array ; q" U. @& y7 y3 x LOCALE_SYSTEM_DEFAULT, // System locale. X* A1 `, P. {' `' k! W: K
&pokeID); // Array of IDs to fill on output* @$ Z! s$ L0 A1 j' B& f' {3 y" Z
0 Q% | G D1 @4 |6 k if (hr)! f* r# q% ~' J
{ 8 H9 ?& J$ H: ]. E* i% i MessageBox ("Get Poke Unsuccessful");/ M* L1 Y, U) K l0 W
return;& s9 Y+ E# n9 Q
}; e. E6 z; f: E. J- n/ p
: Y; ]* i5 O9 T7 a7 J5 V6 u8 O" z/**************************传递数据给extend**************************************/ % q) ^" i/ O$ g$ W! j pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);( t+ A5 Q& ~7 A
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valueStr = SysAllocString((WCHAR *) L"1232");0 `2 }" D: u' w. C) Q
VariantInit(&pokeVariant[0]); 2 c& B, W; F! Z
pokeVariant[0].vt = VT_BSTR;3 M, J( P, u9 f1 Y" [; `( {
pokeVariant[0].bstrVal = valueStr; 7 I, S" n! E( W, K( O2 Q" e! Q3 u- b
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # X- C& s5 i( X3 \0 e+ W% } VariantInit(&pokeVariant[1]); 5 X/ n! w3 B( m/ |4 A7 m
pokeVariant[1].vt = VT_BSTR; 5 D! }5 s, N! E: G! j- Z' ?: w pokeVariant[1].bstrVal = itemStr; 9 L) J( t1 u# p, p4 {" r( X% a7 N( b$ d9 o# T
topicStr = SysAllocString((WCHAR *) L"system");# d. e; R% V# Z1 T3 o5 h
VariantInit(&pokeVariant[2]); 9 H0 S! D3 G8 ?) p4 p/ T. [- y1 |$ W
pokeVariant[2].vt = VT_BSTR; 5 P9 x1 B) z" N5 _7 t/ [" ` pokeVariant[2].bstrVal = topicStr; 7 _ ?' [) S2 B4 I5 n! Y5 h* ]+ H8 G- @
// Set the DISPPARAMS structure that holds the variant. 5 d+ z8 s) }: C4 F1 x, Z% X5 t' w( ]; w# _4 N
dp.rgvarg = pokeVariant;6 |! b+ S2 H% u4 F9 _0 `) C# m
dp.cArgs = 3; 3 X) _% p! Q3 E: R, n6 `. K dp.rgdispidNamedArgs = NULL;; e$ L; z! F. ? `
dp.cNamedArgs = 0; ; N$ O& W' |' [, Z" K* t# i( B! }) C* e3 E7 G( t8 ?
// Call IDispatch::Invoke() ( l3 H/ y2 w5 T. X3 W" s# J% U+ Z1 s3 j9 e! j3 p) v0 M
hr = m_pDisp->Invoke( / g& q. K; R/ i pokeID,+ N3 ^6 G7 k8 A. m# W
IID_NULL, ) a8 A) @$ Z: N" r( b; R8 T8 Z1 y( Q5 C LOCALE_SYSTEM_DEFAULT, + z; w P3 a/ u s( K% M; V DISPATCH_METHOD, 5 G6 ]# F3 g3 p$ ^ &dp,( m: _$ c+ k" a8 Y( Q9 b& J: a
NULL, 7 D1 }; p% {3 U% { &ei,; R- g9 B' l; \5 S2 E9 M6 u
&uiErr); ( Y' \& v" l' A/ t! d/ Q/ F" k9 Q. ?" H; n7 a4 g4 r
SysFreeString(topicStr);, y, O9 {, i- P( D' u/ `8 d
SysFreeString(itemStr); ( D( D- E- F% k; j6 ?6 W9 k4 w SysFreeString(valueStr); ! q* ~# y1 _( s% j ) {9 g, Q0 U d5 `! P( H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???' i* E3 I$ d8 V, D$ @
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????" M8 V" }$ ]: m8 C9 X
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2.这是request的程序 # I: b0 y q/ B1 D// Request a value from Extend 0 z: P; U4 V. Y8 T( Y: U' f// ) z3 }8 f6 n2 q8 b5 c// Initialize the variant that will hold the BSTR. Set the variant's" `& z/ U7 g& V4 h. W+ ~
// type flag to indicate the fact that this variant holds a BSTR. Place the 7 @6 ~: s; |0 H// BSTR into the variant structure. 5 K# P& M v) x; Z/ w" c. t4 J: z! b0 d- I0 ^
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 Q; U% F( Z& s5 P
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 I" S* T4 k9 c
VariantInit(&requestVariant[0]); * i# K9 K3 [3 p' {: h requestVariant[0].vt = VT_BSTR; 8 T. A Y. X1 z/ I' j requestVariant[0].bstrVal = itemStr;! G, `0 e8 b9 B* Z% R