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:" u8 F9 X# S8 m- j! D& g0 a. g
Name = (WCHAR *) L"Poke"; $ I: j! `) E; N) h 1 y4 i. i1 l$ @0 r, m hr = m_pDisp->GetIDsOfNames ( % b, \% z+ G/ ~" q/ l4 H- |, }4 b. L IID_NULL, // reserved " x$ r* o6 L& ` &Name, // Array of names to get IDs for) r% a+ Q9 F f' l6 H! s; g" u
1, // # of names in the array 7 W# K b; F9 J: ?. r, j, a. P- G5 u LOCALE_SYSTEM_DEFAULT, // System locale ' h" \, M. O9 _- Q; `/ {3 O+ N# I &pokeID); // Array of IDs to fill on output 5 x( s6 ]$ q0 N* j" W # |: C3 E- `; V0 M if (hr); ^! ?" ~! R+ ]5 g+ M
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MessageBox ("Get Poke Unsuccessful");- E3 e. I4 l7 e& ]% C, c" Y
return;" R$ P. _2 o, x$ \! i2 Y+ Q
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/**************************传递数据给extend**************************************/9 `! N7 v* ?) X- V6 R! }# P
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . R# F4 _, q* k" X' r9 P% a* i, I } 4 |$ R0 J b/ s2 s G4 v valueStr = SysAllocString((WCHAR *) L"1232"); 2 x* {$ Y8 }( I! y" i# I ] VariantInit(&pokeVariant[0]); " j0 p+ x" P5 @ pokeVariant[0].vt = VT_BSTR; ! @' I# G/ U, }3 Z# p* c pokeVariant[0].bstrVal = valueStr; $ D& k/ I ^) H. S% g4 j W0 u9 K: e& q# f+ M2 {
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ~' b' N: o9 y5 ~ VariantInit(&pokeVariant[1]); 4 O* s x3 \0 [) s1 h% I7 Y) l G
pokeVariant[1].vt = VT_BSTR;* K3 }7 Z$ A; J8 B9 O
pokeVariant[1].bstrVal = itemStr; % T$ j9 O( K6 P' ~$ K) F! U 1 I; t2 k) c6 V- M) ] topicStr = SysAllocString((WCHAR *) L"system");2 j' {( w1 R7 [% K, k$ d
VariantInit(&pokeVariant[2]); : d- q5 F" d7 M' n# E6 s4 { pokeVariant[2].vt = VT_BSTR;9 [7 S; P$ `) M
pokeVariant[2].bstrVal = topicStr; 6 H) j: B( p# t: k1 B4 f' P {' Q- _7 d, P2 I- y) w/ ^) W8 Z
// Set the DISPPARAMS structure that holds the variant.- V( R- B/ h5 W3 v/ W7 l
! V3 N, L7 e4 I2 m dp.rgvarg = pokeVariant; 5 L. |7 n7 h% }# @, _ dp.cArgs = 3;6 i( z' R+ n9 W c8 l5 J- }3 |
dp.rgdispidNamedArgs = NULL; 5 M# ?) l2 I. k- I; W dp.cNamedArgs = 0;; O/ s# M9 g/ ~" u' Q
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// Call IDispatch::Invoke()4 q/ s; b+ v r h' y, i7 v: E7 P5 U3 k
' Q- L; C+ {$ Z6 K z# w4 n8 Q hr = m_pDisp->Invoke( B3 Z- T0 L# o. F: V' m" K9 G pokeID,' L5 S$ f" _1 N9 M
IID_NULL, $ t9 X, r' ^* Q7 Y( T* I LOCALE_SYSTEM_DEFAULT,5 ~6 ]: F/ e. B4 k* n; U5 y
DISPATCH_METHOD, 4 [; ~6 I& d2 w, z( p/ T+ E &dp, 8 @) G# U4 n& z# |, o: ~- k: w! v NULL, . A: J1 f5 N! W* N1 t1 o+ k/ o &ei, $ \$ \* [7 t9 F2 X% k1 U &uiErr); # R9 `, p$ F4 h! t, o4 N# c8 J7 D, ^1 I6 x& r1 s' w7 C* q% O- O4 }& X' b
SysFreeString(topicStr); - L6 E; ~% a- T" Y SysFreeString(itemStr);7 t: Q" P5 e! ]" ]( M" `5 j+ Y- {# V
SysFreeString(valueStr); 9 d0 i) j' u5 j$ U: C . H" k- G; O0 D9 y2 B3 y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???8 ^" |& s- I) o7 _9 v
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????6 Z' p! {1 Y" u5 r
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1 N8 ^& t' X5 a+ [, b# O6 ~2.这是request的程序 3 ^# h- n2 d" T2 i7 o+ S; h// Request a value from Extend+ O- H9 y! e$ [: |
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// Initialize the variant that will hold the BSTR. Set the variant's4 z4 N8 X* j8 @" N# L. s3 p' r+ Z
// type flag to indicate the fact that this variant holds a BSTR. Place the ! ^$ V0 k$ A2 b N; \// BSTR into the variant structure. 7 U8 K3 e% a) {- Y1 S + G6 J4 w: ^; S* R requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . l4 O/ u8 {9 F m$ A! D, X5 U: I/ }# k6 s5 J$ @
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 y0 C( y, N. d, U VariantInit(&requestVariant[0]); " S& `5 X0 s ] [5 q0 W1 Z
requestVariant[0].vt = VT_BSTR; 7 I# U' m& d$ @" a8 W requestVariant[0].bstrVal = itemStr;- Y$ m6 N+ B p& |
) ]! I6 w# B2 L- E3 M topicStr = SysAllocString((WCHAR *) L"system");5 U% C' g- ?# Y$ O9 z# ]
VariantInit(&requestVariant[1]); 6 m" S# Z+ o8 W3 ~: O% f requestVariant[1].vt = VT_BSTR;0 W$ O* m2 L! ]' Y! c; l6 |8 B% P
requestVariant[1].bstrVal = topicStr; + m* D S" }# F/ Y. Q4 p# X8 S+ R; ?
// Set the DISPPARAMS structure that holds the variant.: q o+ b8 R4 r$ o) [