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: . Q+ N# y" a" n. w- l& s D S9 K8 IName = (WCHAR *) L"Poke"; 5 a: U+ D: t( }. _0 g* r1 ?0 F, y) ^ ) Y& ~. L, @& j hr = m_pDisp->GetIDsOfNames ( + D& R/ q! t6 t* Z% _; t IID_NULL, // reserved 6 q9 v/ C n* B" L, z) a &Name, // Array of names to get IDs for * k7 P7 O9 r/ Q% i; ^2 k) n3 ^ 1, // # of names in the array + g% }" \! L' C# l6 p* { LOCALE_SYSTEM_DEFAULT, // System locale # n' u7 p. t: K9 M S5 ^ &pokeID); // Array of IDs to fill on output" F- h" s* W. U' o7 r
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if (hr)* ?! a' [* ~+ v) K8 p( G
{ % X* p: T) A! j) p3 A! v" B MessageBox ("Get Poke Unsuccessful");% C) }9 }6 V Z- V/ J6 m' ^
return;8 {2 I& l( p! f3 m
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/**************************传递数据给extend**************************************/ $ o% `! H5 }6 G8 S pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ `' c$ f) T+ q, U6 v) T . y6 Y9 X" M: N( n. x. q
valueStr = SysAllocString((WCHAR *) L"1232");+ p5 D! f: Y1 ]3 j6 D
VariantInit(&pokeVariant[0]); : b4 L& j& H( f- y* L1 x9 ^9 I pokeVariant[0].vt = VT_BSTR; ! o; u* ?9 O/ e0 w# R7 _! w0 { pokeVariant[0].bstrVal = valueStr; 4 C; c: r" D1 }" ~" r7 ] $ x% \4 V, |3 Y& n0 \/ i itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . w* a% t( j* @) u0 Z VariantInit(&pokeVariant[1]); 7 o0 n9 z5 v8 D pokeVariant[1].vt = VT_BSTR; 9 v+ L4 J5 Z5 q( M, s8 j pokeVariant[1].bstrVal = itemStr; 4 L- t& g7 t7 |+ V' `1 ` @) \1 f b7 y. s$ F
topicStr = SysAllocString((WCHAR *) L"system");, x1 s0 m4 _2 u& m% e9 B
VariantInit(&pokeVariant[2]); / L2 A& |& j1 d8 o: S pokeVariant[2].vt = VT_BSTR; 7 M4 C6 t \0 z pokeVariant[2].bstrVal = topicStr;# j, ?/ F1 i1 k1 d
+ ^# h9 l/ p6 N" ]9 C// Set the DISPPARAMS structure that holds the variant. 6 @1 Z! M9 ]7 q ) }; |8 T/ ^, |- }+ _" C; B) P dp.rgvarg = pokeVariant; 0 o3 m+ [/ A7 f! e/ P, X dp.cArgs = 3;8 P9 j! g' H6 L2 i
dp.rgdispidNamedArgs = NULL; , I( q) p, Y8 j3 K# ~ dp.cNamedArgs = 0;. v# O# t$ e4 U% G
7 C# b- h" y1 O6 ?: `1 n8 F9 B// Call IDispatch::Invoke() 4 ]3 b* I* j) c6 t. X! a/ }! |3 J6 p4 ~
hr = m_pDisp->Invoke( ) ^6 X$ e1 p X: M. b @ pokeID, 5 w+ ?; S& w/ N& E7 g$ @: a IID_NULL, + y' K5 p1 e3 z/ A LOCALE_SYSTEM_DEFAULT, . n# `3 c2 a: r- ?9 j/ h DISPATCH_METHOD, 5 N) x; X3 e2 P( n @" t &dp, : s8 d; V# P3 E6 \$ r1 b+ K2 ~: I6 C; D# { NULL,8 x4 S' M9 W' `. q4 d, p z
&ei, 0 f& P) o; [2 K" j; ?: O &uiErr); 4 F/ T* W9 ^$ o: }- F2 { 0 ]6 d" u( z, \ SysFreeString(topicStr);( A6 Z8 s& K; ^5 a2 {# B+ }2 G
SysFreeString(itemStr); 0 a7 k5 o& g( N. G/ L$ c SysFreeString(valueStr);9 a4 o4 W) k) C. e- n
e* I4 U/ S$ [" y5 z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 }9 h5 Y3 s( e6 ?: Z0 f! e; l
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???? 2 a+ j" n' w% s v |& o( G m& I/ @- I" l( c( Y& d( o t0 K5 {
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2.这是request的程序8 Z: q7 v/ Q8 M1 p) h! _6 m, C
// Request a value from Extend0 B" S% G8 u4 K3 K \
// 0 \9 |' ~- x# `2 ~* Q# j; i// Initialize the variant that will hold the BSTR. Set the variant's5 f3 D/ U' P3 q: I
// type flag to indicate the fact that this variant holds a BSTR. Place the5 W1 g* y4 P5 Q9 [
// BSTR into the variant structure. , v2 g) E4 \. S* Y5 } |, ?" r8 C- }3 M1 X) ]/ @& t
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* ?& f& @, g# G7 n/ B, y