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 [* q: Q5 v+ h. c5 a3 IName = (WCHAR *) L"Poke";3 R$ w W2 o- A6 j8 [6 v' R, _; l
4 c" Q5 n. i/ Q% E0 _. Y, D1 B hr = m_pDisp->GetIDsOfNames ( " o9 b* u+ y$ N; m$ T2 ]- A, E IID_NULL, // reserved" K; y( Q4 T# ~1 D
&Name, // Array of names to get IDs for 0 W1 \2 B( u8 s& x 1, // # of names in the array ) y$ M) }: j% T1 q# j LOCALE_SYSTEM_DEFAULT, // System locale & o, m) c1 R+ w &pokeID); // Array of IDs to fill on output$ e6 d3 o" ~- p# F4 E. S! p
! [1 X8 c& w" k4 }& w* D, G b W6 _ if (hr) + o/ s5 V9 R D- N' ] {" Y( y ?. i2 k: g! o
MessageBox ("Get Poke Unsuccessful"); % H/ j; |1 Q: a( r( ?3 \* w return; 6 E+ ]' D$ N, V c! o2 J }# w0 O# @$ y& ~* a2 p, }" e; y
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/**************************传递数据给extend**************************************/ ; L1 j6 s( W& b, D4 N pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 z9 v$ w0 C6 p; D k + k: x3 U, A8 v0 O. d7 x+ V
valueStr = SysAllocString((WCHAR *) L"1232"); * h! |; H o5 m# H VariantInit(&pokeVariant[0]); / S6 m1 }% p/ H; I1 T" }, Z0 O6 Q
pokeVariant[0].vt = VT_BSTR; - T$ Z" F' |; C( n8 g5 v pokeVariant[0].bstrVal = valueStr;9 I" u0 a$ R4 |# r
/ A6 \6 G& B `" c' `: D) ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ M9 H7 P6 k: h9 m. O VariantInit(&pokeVariant[1]); 1 |1 n& A t" _- } j
pokeVariant[1].vt = VT_BSTR;8 j% Q: X7 V9 g, f
pokeVariant[1].bstrVal = itemStr;( n i+ {# F4 G6 x
# W% \( c7 Y# G$ A topicStr = SysAllocString((WCHAR *) L"system");% X' H7 y( d( |% A
VariantInit(&pokeVariant[2]); " a& w; x/ O9 l pokeVariant[2].vt = VT_BSTR;9 @4 ?" e7 i( ?; M; M& H( x7 d
pokeVariant[2].bstrVal = topicStr; 6 }; i; n. l9 ^ % q0 h" V, J+ q1 R# R, i7 t! a- ]// Set the DISPPARAMS structure that holds the variant. 3 ~9 a5 ^% f1 l @3 z! I 4 ~6 e4 O, H, ?5 y) _ dp.rgvarg = pokeVariant;' T2 o' |5 f" t
dp.cArgs = 3;& c; ? A3 _8 f+ U: R, A0 a
dp.rgdispidNamedArgs = NULL;# {, C2 k+ u Z/ }1 V
dp.cNamedArgs = 0;% K+ h5 Q4 f. M1 m' r4 B
7 o; n/ J1 {/ g- @9 ^9 o// Call IDispatch::Invoke() . p( y; E3 L! V* I- A5 v' q8 l, P
hr = m_pDisp->Invoke( . A3 d3 x& z4 {1 C; h/ ^9 Q0 |! k' Y pokeID,! x+ ^6 P6 D. r, I9 t6 u
IID_NULL, 8 v+ L _9 b( r LOCALE_SYSTEM_DEFAULT,# |* [/ A! l/ Y5 v; L% L0 u& I
DISPATCH_METHOD, * l6 Y1 F! P" p; z3 @/ ] &dp,/ V; e0 O& x1 M9 Q3 v, {7 d& ^6 f2 [
NULL,. c, q8 M* L# j9 l# D
&ei, a$ w- Z y& s2 K- Z &uiErr);2 ?2 t. v. x. y* F% u
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SysFreeString(topicStr); * `) [: d6 h9 q0 d& X' M+ t4 W- d# E! C SysFreeString(itemStr);1 c, m* p3 y+ y# q+ d+ i' Y
SysFreeString(valueStr); # U3 ?! F1 v# H* R2 P) m- e2 j* C E6 i( W: G8 j3 G# E j* }
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???4 s( i3 a. }9 _4 Y' b6 m
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 ?" I4 c3 f! k! ~- E8 G1 K+ O( W6 T4 F- w
1 ]9 m" V/ t7 J4 \6 l, z2.这是request的程序: P# B3 r: a7 R* j! {- \' d+ I
// Request a value from Extend: B, ?! l5 S( h9 j
// 2 }3 S q. `; ~7 ?3 c- ] N// Initialize the variant that will hold the BSTR. Set the variant's 9 J* }9 d h5 n* y// type flag to indicate the fact that this variant holds a BSTR. Place the6 J6 Y( ~3 r/ y( ]7 Q
// BSTR into the variant structure.& p; W' U) }9 k1 n
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ g" Z& d: ~( y% O$ \9 n- Q1 @ # Y2 m6 Q1 A) J, S, |
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - t3 U6 y4 z J A/ w9 K7 P VariantInit(&requestVariant[0]); 0 e( q4 {6 G4 s5 A% H2 A1 x0 F
requestVariant[0].vt = VT_BSTR;* ^* r- _7 x; I" h
requestVariant[0].bstrVal = itemStr;0 g& ?& }5 N! i. N
# }$ P, S$ V0 E" W$ }
topicStr = SysAllocString((WCHAR *) L"system"); 9 y7 i. N# g& V6 V VariantInit(&requestVariant[1]); : `5 p8 H$ ]% d: M9 c5 l
requestVariant[1].vt = VT_BSTR; / g; ?' H4 t9 P3 y i+ m* d requestVariant[1].bstrVal = topicStr;1 X, @0 r( v, b0 o
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// Set the DISPPARAMS structure that holds the variant.( O: O% _, L( |, K3 ^/ h9 E/ Z
+ _2 [; s1 G# w9 r
dp2.rgvarg = requestVariant; 0 @/ M; j4 L9 T3 |( O, T9 j dp2.cArgs = 2;9 f: N7 U6 A. l( H7 R2 Y4 A7 J
dp2.rgdispidNamedArgs = NULL;" H* X; F; |) T1 x# O( x
dp2.cNamedArgs = 0;1 e. q4 z1 @+ h) @$ A# l
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var.vt = VT_EMPTY;0 D" {/ W# x5 |! B8 I# f$ o+ |5 d