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:2 V! V: S5 g! ^ a8 d- d5 u
Name = (WCHAR *) L"Poke";, ~* D1 F' k: a6 D, C/ P' [3 t& c& \
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hr = m_pDisp->GetIDsOfNames ( 1 `$ I3 h' w- p8 v; @3 _ IID_NULL, // reserved 3 m7 h7 h( |9 c- y4 f9 ]6 N &Name, // Array of names to get IDs for 3 E! J9 T4 Z8 b# [ 1, // # of names in the array & {( C, {; {3 b4 t! j- ]! J7 K0 }$ B LOCALE_SYSTEM_DEFAULT, // System locale7 H: f& c0 y0 o* v* D& [
&pokeID); // Array of IDs to fill on output- B, k" r8 D2 Y
7 O, z( q8 `5 r# n5 E$ r if (hr)+ A. c; I; P8 K9 `) s. h4 n5 B
{ 7 r* z K/ Y" h3 H6 [ MessageBox ("Get Poke Unsuccessful");$ U8 V: ^' v& I- T4 ^; F
return;: F& G* F& K, K% m
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* }2 ]$ [: _- G! P5 i4 M/**************************传递数据给extend**************************************/8 }7 O0 n% Q# q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 m: X7 @2 k; s3 F% |4 L9 A- Q " ^. o: s, P( r0 W valueStr = SysAllocString((WCHAR *) L"1232"); 2 x; k+ m0 U8 e( |6 J: J# Q VariantInit(&pokeVariant[0]); 2 X2 D- i* e- \" a$ h pokeVariant[0].vt = VT_BSTR;, ^2 _- J# ~1 `! U
pokeVariant[0].bstrVal = valueStr;2 u6 [% v7 l- |' @6 H" C
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 H; {# \) `6 i7 [ VariantInit(&pokeVariant[1]); 6 c; d- g# U9 d
pokeVariant[1].vt = VT_BSTR;5 {, s0 \2 {7 p0 S- `( ~
pokeVariant[1].bstrVal = itemStr; 4 J. p9 W. r: O. N 8 X/ X' {( m0 r- p: f8 \9 m5 R topicStr = SysAllocString((WCHAR *) L"system");5 {* H5 i" k" g5 l1 |/ A3 i, p1 y$ s' M$ |
VariantInit(&pokeVariant[2]); 8 S N# u i( @8 P
pokeVariant[2].vt = VT_BSTR;6 P, r* |. D6 \0 v, f e7 T
pokeVariant[2].bstrVal = topicStr;1 ^0 x# A: c/ \. O* `# x- o, L# G
& |: u7 J0 l- ]' w3 e// Set the DISPPARAMS structure that holds the variant. + i# X% m8 D+ X 5 n4 J7 O/ N) E" i4 l# N& b dp.rgvarg = pokeVariant;4 I" F" K s$ |$ ?1 q; p
dp.cArgs = 3;: T) b' {# G6 Q. i* q( k/ j9 N' H
dp.rgdispidNamedArgs = NULL; + I7 H+ e( w# S$ A% X dp.cNamedArgs = 0; ) e" }# D* E2 g' h 2 O- w4 Z9 H: I, x- Z' K" C6 K// Call IDispatch::Invoke() 5 l/ s8 m( l/ R! q( a, W! a5 u. R' w" k! ?5 ^0 K7 o2 e
hr = m_pDisp->Invoke( ) X, X) } D. u$ Z7 g pokeID, $ D& [6 A+ c/ v: n) L: w IID_NULL,- e! w- N+ L$ K+ m# j p
LOCALE_SYSTEM_DEFAULT, % U) \- j* i: ~$ u DISPATCH_METHOD, 5 F/ K( a( U: R m0 T1 _ s/ h &dp,' {2 i7 j- A1 e, ?2 o, t- s
NULL, ! q! d# C6 [% \1 x3 o% J6 i &ei, ; z0 p3 a6 L- v: { p C &uiErr);1 l( L/ E3 w' i2 ]; j. @$ a6 O8 i
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SysFreeString(topicStr); + I6 }3 N/ T2 f7 Q SysFreeString(itemStr); $ z- ]5 }4 l! Y6 z; Q" e3 g SysFreeString(valueStr);5 J* o3 L3 V9 L! B7 O
& ^. h8 X% K& c. T) K" Y* U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???% x( o5 k- o ^6 ]- h. m$ V4 ]
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????, w7 O+ p& r5 h* t7 e0 _% {8 h
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* N/ A, @ J: u2 {2.这是request的程序: {5 c) h8 r* p& v8 e/ S. I" h
// Request a value from Extend $ @: ]; _1 }1 f// # R, x- H% N. v8 ^$ {/ _ p2 A// Initialize the variant that will hold the BSTR. Set the variant's $ K- E( E0 f8 u// type flag to indicate the fact that this variant holds a BSTR. Place the % l+ A i, ]; p9 G3 T# W# S// BSTR into the variant structure. 7 D% x# n" H+ Z / z" v# M; k# ?; z+ N requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 R$ [# N3 `) k8 p g6 [