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:% ?; l) T+ C9 }
Name = (WCHAR *) L"Poke"; 3 [$ f6 X/ U* Y9 S: G " I* B3 j0 s# Y0 e* h( \
hr = m_pDisp->GetIDsOfNames ( # _( Z/ Q |% C IID_NULL, // reserved$ c( R" f7 g0 o4 [
&Name, // Array of names to get IDs for F* d$ V K: A- r9 M: F& Y; p' C 1, // # of names in the array/ N% X c) J+ t6 V* b
LOCALE_SYSTEM_DEFAULT, // System locale. S1 ~. {0 ^- t8 y4 z
&pokeID); // Array of IDs to fill on output @7 T; I& s- q4 b( j $ T4 L6 P# ?! u% _" x if (hr) ' Y! P; j h% v* h {3 T3 F' r( N7 y# H1 q0 B3 |( {5 Z4 r
MessageBox ("Get Poke Unsuccessful"); 9 A# J3 q U& N! L return; 3 O3 C) s. f0 l2 T$ j }$ G3 O: f4 n) s' e. M
4 p5 X- @5 u. g7 v% Q1 Z6 s8 X/**************************传递数据给extend**************************************/ 8 c) ]) r( N( ? `% |1 }; p$ n pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 v+ J- v/ w" q5 U- R# k3 ~$ g1 k
3 J9 T- c9 X' [! j! N valueStr = SysAllocString((WCHAR *) L"1232"); 3 S) g; i. H. U: t( R O- p VariantInit(&pokeVariant[0]); * p8 f9 z7 M7 M8 G8 I
pokeVariant[0].vt = VT_BSTR; % W' D6 X, ^* y0 J* o2 ^ pokeVariant[0].bstrVal = valueStr;' u7 ?/ D9 h" @1 c* ^6 ~+ o3 {% w
9 r/ k ?& B) P' u2 s& C& Z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / y1 X) |9 p8 g" l$ N \( O' I8 w VariantInit(&pokeVariant[1]); 0 U2 q6 Z9 Q- G9 p4 i8 a
pokeVariant[1].vt = VT_BSTR; W8 u- K3 R; W( u4 `8 e
pokeVariant[1].bstrVal = itemStr;7 o: U0 [- B8 g8 B( ?
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topicStr = SysAllocString((WCHAR *) L"system");- f" c7 d4 |6 L2 C5 d
VariantInit(&pokeVariant[2]); 9 n. m+ W8 w& y' w5 [ _; N
pokeVariant[2].vt = VT_BSTR;. O1 N& D; H& f- k k
pokeVariant[2].bstrVal = topicStr;+ E& h0 ?- e1 h$ c9 S* i
& B2 i7 n0 }# c0 s; V9 Y" W) G0 P// Set the DISPPARAMS structure that holds the variant.: W' W; G0 }- b- g
% i$ |4 N; ^ {% Z) M* D8 g0 q dp.rgvarg = pokeVariant; [8 C! D! |0 T+ p) | n dp.cArgs = 3;+ j. B2 r3 m8 u: x3 N+ q5 P
dp.rgdispidNamedArgs = NULL;# q5 W8 e4 r" x, p
dp.cNamedArgs = 0;& @- t. U! Z B$ \+ ]
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// Call IDispatch::Invoke() m# P1 {- b# M3 }/ Y/ ]$ ?
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hr = m_pDisp->Invoke( ' M7 {" h* s! u1 K2 p pokeID, 4 y# i0 `- Y- w) J2 i: \- L IID_NULL, . F/ w6 r8 A1 E5 \+ Y9 }" Q LOCALE_SYSTEM_DEFAULT,& Y+ W r2 a3 z7 A
DISPATCH_METHOD,- v# b/ u6 J. y
&dp, 8 M, k2 W5 f7 D' n NULL,4 I3 y- n0 r! y3 a
&ei,0 U& H* a' h4 _1 M
&uiErr); 8 C1 y# w$ L" @# L5 ^$ F8 D2 ?; Q
SysFreeString(topicStr); 3 Z# @! V/ |' R2 @! H SysFreeString(itemStr); 3 X" l+ w, A* v4 ^& i SysFreeString(valueStr); % N& Q* c! Y. y3 N2 f( L$ o4 \) l
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??? & L* [" G D' Q& y$ T( ^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????$ f Q* f4 o- P
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2.这是request的程序8 z4 @5 u- I. g8 y2 [2 u2 G! w
// Request a value from Extend, R; S9 L/ h3 u+ z
//. n9 L, g4 d$ G. H' s! c- J- i' _# r) [
// Initialize the variant that will hold the BSTR. Set the variant's 8 f4 K) C' p5 z) Z7 r, f0 K// type flag to indicate the fact that this variant holds a BSTR. Place the 9 r( @0 `) {" |) \; V/ i9 Y: [7 V// BSTR into the variant structure. ( \: P. v& ^( x0 @4 r% p4 ^ y1 C" M: a7 N5 P1 f; Y1 d
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ! w& n, u9 [3 |. `0 ^ ( i. p2 q: q6 `8 T# ?
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); m9 m6 S# O& l o, r1 ^
VariantInit(&requestVariant[0]); 8 [' i! n; n' r/ j
requestVariant[0].vt = VT_BSTR;5 r1 X; Q* S7 C3 [
requestVariant[0].bstrVal = itemStr; $ P- R' G' `, w5 Y1 W1 S" d/ y6 u* g+ @. _6 j
topicStr = SysAllocString((WCHAR *) L"system"); 4 M: Y0 Z0 M5 B% } VariantInit(&requestVariant[1]); 5 s( q3 Y) K' b' l! O% f
requestVariant[1].vt = VT_BSTR;7 l- W `$ X9 h6 e
requestVariant[1].bstrVal = topicStr;) [" G. ^4 X6 U, L- V* l, Z
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// Set the DISPPARAMS structure that holds the variant./ A; J2 K' ]+ e. n3 s& }* a
3 j7 b2 e& E' _) {2 M# k dp2.rgvarg = requestVariant;, c# V6 M0 l9 h
dp2.cArgs = 2;% A3 v4 Y+ b: M% D8 A' }: e f
dp2.rgdispidNamedArgs = NULL; % |/ w1 p3 s$ c7 M dp2.cNamedArgs = 0; ; F, t8 _9 W" y% X" N6 s ` , G( }4 o3 l, f5 W. T var.vt = VT_EMPTY; 1 k8 P' s; \* N( f( r: ?. Y, B& |; s1 d
// Call IDispatch::Invoke()4 _$ n: Q. F* j) |
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hr = m_pDisp->Invoke( ' y" o# F. J+ Y9 g requestID,. K: v9 l& s3 x. L' C
IID_NULL, Z; i7 S: u3 T4 Q4 t1 Q% t LOCALE_SYSTEM_DEFAULT,2 C- l2 I$ k: z. ?; G# b0 u7 N
DISPATCH_METHOD, - h% j& I) g/ f4 \ &dp2, 0 g: K6 W. H1 M6 s+ j' f &var,/ Z. A0 _1 A" @! R
&ei, 3 j, e9 @( W7 \& D- s# R &uiErr); & G' K- ]. e' V" N / @& A+ u+ z% }$ u. Q( B SysFreeString(topicStr); f% W5 ]: D5 u& h6 j$ B SysFreeString(itemStr); ! W2 D( b2 w: T! r: v请问该程序是获得extend里面的哪个值? 6 n( S( G9 j) i) u" m k' C2 ^* R6 f如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????