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:8 E7 i( A3 z& F- n* J
Name = (WCHAR *) L"Poke";7 F. P+ W$ o5 T5 c# o& @+ O# T
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hr = m_pDisp->GetIDsOfNames (, }5 t, Z$ a$ |! I3 i
IID_NULL, // reserved 9 C/ L! }4 K) C; U) f &Name, // Array of names to get IDs for ) c8 P A9 u! l1 O! x: _ 1, // # of names in the array & F) ]* |: {8 D4 ]2 ` LOCALE_SYSTEM_DEFAULT, // System locale $ ~3 ?$ p( c$ T &pokeID); // Array of IDs to fill on output 1 D* M, m G6 N- e4 H& W& y2 S $ O7 d% @( b* _# {! B if (hr)$ p) H% L2 N/ c0 m& [8 [5 ^+ F" J* M
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MessageBox ("Get Poke Unsuccessful"); 6 Y9 a$ B4 {0 X, J return; ; x) h- ?- q/ @4 R8 i } # U, }& n: d, d. `- A" Q / k/ |; E0 r) E0 \0 _ @/**************************传递数据给extend**************************************/ * m Z5 N* e" g8 u3 w; w6 f7 _ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 6 a' G0 I& z: g! b' F5 k 0 \4 s4 J+ E7 Z valueStr = SysAllocString((WCHAR *) L"1232");$ N. d, Q |! b% q+ n) P
VariantInit(&pokeVariant[0]); # h2 e5 ~6 W1 U' d U pokeVariant[0].vt = VT_BSTR;& ?9 o7 Y1 w9 J+ r t. p6 I! g6 r ~$ d
pokeVariant[0].bstrVal = valueStr; 5 V, v# I7 W0 q, L 9 p. Z& u9 X o6 a, e' G, e7 h, O itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 E7 j+ b) Z- w( | VariantInit(&pokeVariant[1]); 4 X0 k/ k! v6 B3 ?/ }7 g pokeVariant[1].vt = VT_BSTR;5 X9 V3 G0 x. a8 h) A$ w
pokeVariant[1].bstrVal = itemStr; 1 y$ g8 }6 W$ l# D2 J3 L4 a * i) P* q7 a& i( r0 s# j topicStr = SysAllocString((WCHAR *) L"system");" @ |( E% r- N) [
VariantInit(&pokeVariant[2]); * A2 m- a7 d9 q: N D pokeVariant[2].vt = VT_BSTR; $ o# v3 f( z3 H( n# V pokeVariant[2].bstrVal = topicStr; 2 b% T5 j4 k1 K$ _* j, ?( n / M3 U- P k1 }4 H# o) u* ^// Set the DISPPARAMS structure that holds the variant.* ]0 Q/ ^) N# {+ s
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dp.rgvarg = pokeVariant; $ E* A: ~- @% S9 c dp.cArgs = 3;( \5 B8 m4 h, O! a3 j
dp.rgdispidNamedArgs = NULL; * M2 U3 j1 V* \# w5 r dp.cNamedArgs = 0;3 V* Y7 n) R" N+ g( A |6 w
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// Call IDispatch::Invoke()' m( ^- A" P! U3 |
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hr = m_pDisp->Invoke(% T* b) [' p- y4 E3 e3 z7 U
pokeID,: d' V5 r) G @3 a! F O ]8 Z5 c* s
IID_NULL,& g6 m% B8 c+ i
LOCALE_SYSTEM_DEFAULT, , ?0 Q4 q3 B" M DISPATCH_METHOD,4 m' Y" [0 e, o4 T) s
&dp, 2 z" e3 b" J- r) y8 Q! k NULL,3 s- Q" i1 Y! s
&ei,' ~8 z) ]) [7 r4 ?# e* ^
&uiErr); ) B1 R$ }8 a* V) r$ O& L5 R ( _" O4 A# S6 l2 o2 C1 T2 u SysFreeString(topicStr);* n: T( B/ |8 x) g& y4 g
SysFreeString(itemStr); & [% Q9 ^3 i% T! [6 c SysFreeString(valueStr); & m' o/ }2 {+ d0 L! T1 u0 F ; z. D+ V' R6 X1 N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???+ w5 K# h. @% M) p8 h/ y, z4 \
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???? ) n! B1 A* l" i0 g! U1 `5 v- O' E/ B- d5 U+ Y0 D
" a& F8 N% d) g' Z* e2.这是request的程序 7 x8 w+ [/ n* `# h, G& w// Request a value from Extend 2 r/ P: V/ v9 ~; ?# ~//- `+ D- f: B- f! g
// Initialize the variant that will hold the BSTR. Set the variant's' Z4 H8 T, V0 j( e" S: K( G
// type flag to indicate the fact that this variant holds a BSTR. Place the' y& K( t7 d5 U7 j
// BSTR into the variant structure. Z. K$ _3 R) b# ^6 A" S
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ v) \1 A. u" e
7 C* [; G5 p% p9 d" e* f! m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( }( A' n* E, K1 {- X7 t4 O
VariantInit(&requestVariant[0]); 6 P- G# x- |! a" g ?( ^) e; { requestVariant[0].vt = VT_BSTR; 2 d" x; N1 z. U& K1 u" U; C requestVariant[0].bstrVal = itemStr;1 w7 h. m- D/ ^6 k; c3 ^% `
" s, h( |$ f( s topicStr = SysAllocString((WCHAR *) L"system");! Q9 e" F' D) m6 w& f: @
VariantInit(&requestVariant[1]); 2 h5 q! e* M* n0 }3 Y# I' v0 V6 P
requestVariant[1].vt = VT_BSTR; 7 T- M6 B* I4 Y1 t0 R requestVariant[1].bstrVal = topicStr; 9 P- O) n9 y1 \- j$ I5 v6 U$ G4 R . u5 _5 t3 d. T h: h" S" W$ `// Set the DISPPARAMS structure that holds the variant. % S" [& \& P1 p+ {: ?2 @. t2 |! O5 ^3 c8 ^6 `: W3 A/ t/ W
dp2.rgvarg = requestVariant;! T- l$ ], K: E$ B
dp2.cArgs = 2;; H- G. d! N# W/ ]) q) M0 Y8 z
dp2.rgdispidNamedArgs = NULL;# S' v! B- Q* _0 J9 p$ T
dp2.cNamedArgs = 0; 7 g6 G* `; l- X2 w5 R# L* o3 B ; P3 @$ K$ x5 `5 A. | var.vt = VT_EMPTY; i7 z+ \% t* C( [