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I would like to know how to create an ActiveX control from an existing Windows Control
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Is a Standard Control? or you Own Control?
Cheers...
Carlos Antollini.
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I want to develop a control similar to a CComboBox
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Is a class Derived From CComboBox or CWnd?
Carlos Antollini.
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The class is derived from CComboBox
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Hi ,
I want to change the windows default icon of an .exe file to some of my own . The exe file I have does not any window for which I can load a resource and assign an icon. It is a simple console based application calling a few functions and it does not give out any output on the console.
Can anyone suggest me a method to do so.
Thanks
Vijay
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I don't have my Visual Studio handy, but all you have to do is insert an icon using the resource insertion menu (maybe under Insert/Resource). You'll be asked to confirm that a .rc and a resource.h be included in your project. This should suffice.
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo
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Thanks that did the job
Vijay
Vijay S
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Hello!!
I am trying to send and receive some data using COMM(communications ). I have got the handle to COMM by the use of lineGetID().
I have only modified the timeout value (commtimeouts.ReadIntervalTimeout = 3000; and set the others to zero).. When I transmit the data from the client it gives error in the client saying ERROR_ALREADY_EXISTS (0x000000b7)..
Could you please advise what could be the problem...
Sandeep
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Hi,
I am just about to start some email integration development. Trying to choose between Simple MAPI, Extended MAPI and CDO.
All i need to do is open a message to be sent, with attachments already added and the destination address to be filled in by the
user.
At the moment i am swaying towards simple MAPI. Is this still going to be supported in the long term, or is extended MAPI replacing it.
Cheers
Richard
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I need to implement a calendar control that can maintain the state of individual days. (A simple change in color of the particular day would sufice) I thought I would just be able to use the ActiveX controller but I can't see how to do it with that. If you know a good way to do this would you let me know.
Actually I can maintain the state. I'm doing so in a data structure already, but I need a way to display this state to the user.
I'm using VC++ 5.0 if that makes any difference.
Thanks much,
john
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Hi,
I have built an application that launches many other processes and then monitors the state of those processes periodically. To monitor the status, I use the Process Id that I get when I call CreateProcess to create a process. But, I am having a problem with the current implementation -
I have observed that the same process ID can be allocated to a process, if the previous one with is dead. This happens within a short time. Therefore, if I note the ID of a process and then monitor it after say, 1 minute I may be monitoring a some new process if the one that I started was killed. Is there any unique way to identify the process?
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If possible, call CreateProcess from separate thread, then use WaitForSingleObject with process handle to get notified of process termination.
Tomasz Sowinski -- http://www.shooltz.com
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Can any body help?
I have got an application that draws a set of filled polygons and line to a CWnd Derived Object. There is also a zoom in/out functionality, which is where my problems start. If the user zooms in far enough the drawing starts to go a bit screwy. I am sure this is because when I convert the real world coordinates to screen coords some points are out side the 32000(98) / 64000(NT) limit on the size of the DC.
What I would now like to do is impliment some clipping code that clipps all the plygons to the visable area.
Does anybody have some code that does this ?
Best Regards
Andy
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There's an algoritm from Cohen and Sutherland.
Search for "Cohen", "Sutherland" and "clipping".
A german description is in
http://www.upb.de/cs/info-cd/vorlesungen/domik/computergrafik/node57.htm
Volker
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Thanks for your quick response. I have tried to impliment this algoritm, but I can apon problems for certain cases. One of which was when then line of the polygon started inside the polygon and then exited the rectangle on the left hand side. The polygon then moved around the bottom of the recangle in two or three stages and entered the polygon on the right hand side.
This is caused brecause with this algoritm you consider/clip the polygon to one side of the rectangle at a time, and seeing as when the polygon is below and out side the recangle the line below the polygon are discarded, and the polygon becomes distorted.
If I am incorrect then please tell me.
Best regards
Andy
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I'm a beginner in C++ and I'd like to know what's the difference between:
CMyClass::CMyClass() : m_rect(0, 0, 200, 200)
{
m_iIndex = 0;
// More inizialization
}
and
CMyClass::CMyClass()
{
m_rect(0, 0, 200, 200)
m_iIndex = 0;
// More inizialization
}
Having m_rect as CRect.
Please, could somebody tell what's de difference and which is the best way to do it?
Thanks in advance...
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Well, the second way won't compile, but I know what you meant.  The first way calls the CRect constructor with 4 params. The second way calls the CRect default constructor first as part of initializing the entire object.
--Mike--
http://home.inreach.com/mdunn/
You are the weakest link, GOODBYE!
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Sorry, I wrote it too fast! but thanks I've understood it.
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i am facing one problem, i have to access the data of contents tab of property sheet by VC through property storage. i suppose it should be part of Docsummaryinformation, i am using that but not able to write or read the contents tab information so if u can suggest any thing thats good.
the code i am using is described below
#define UNICODE
#define _UNICODE
#define WIN32_LEAN_AND_MEAN
#define UNICODE
#define _UNICODE
#include <stdio.h>
#include <windows.h>
#include <ole2.h>
#include <atlbase.h>
// Implicitly link ole32.dll
#pragma comment( lib, "ole32.lib" )
#include<vector>
// From uuidgen.exe:
//b725f130-47ef-101a-a5f1-02608c9eebac
//79c1e210-9ad8-11d5-ae31-000102572d6d
/*const FMTID fmtid = { /* d170df2e-1117-11d2-aa01-00805ffe11b8
0xd170df2e,
0x1117,
0x11d2,
{0xaa, 0x01, 0x00, 0x80, 0x5f, 0xfe, 0x11, 0xb8}
};*/
const FMTID fmtid = { /* d170df2e-1117-11d2-aa01-00805ffe11b8 */
0xb725f130,
0x47ef,
0x101a,
{0xa5, 0xf1, 0x02, 0x60, 0x8c, 0x9e, 0xeb, 0xac}
};
EXTERN_C void wmain()
{
HRESULT hr = S_OK;
IPropertySetStorage *pPropSetStg=NULL,*pPropSetStg1=NULL;
IPropertyStorage *pPropStg = NULL,*pPropStg1 = NULL;
WCHAR *pwszError = L"";
LPSTORAGE pFileStorage = NULL;
PROPVARIANT propvarWrite, propvarWrite1;
PROPSPEC propspec;
try
{
// Create a file and a property set within it.
hr = StgCreateDocfile( L"d:\\temp\\WriteRead.doc",
STGM_CREATE|STGM_SHARE_EXCLUSIVE|STGM_READWRITE,
0,
&pFileStorage);
if( FAILED(hr) ) return ;//throw L"Failed StgCreateStorageEx";
/*//#CHNG rajeev
LPSTORAGE pStorage;
hr = pFileStorage->CreateStorage( L"\005MyStorage",
STGM_CREATE|STGM_SHARE_EXCLUSIVE|STGM_READWRITE,
0,
0,
&pStorage);
LPSTREAM pStream1;
hr = pFileStorage->CreateStream( L"\005MyStream",
STGM_CREATE|STGM_SHARE_EXCLUSIVE|STGM_READWRITE,
0,
0,
&pStream1);
if ( FAILED(hr)) return;
CComBSTR ab("\005abcd");
unsigned long count;
pStream1->Write(ab,ab.Length(),&count);
*/
//
//#CHNG rajeev*/
//FMTID_DocSummaryInformation //for the summary coc
//FMTID_UserDefinedProperties
pFileStorage->QueryInterface(IID_IPropertySetStorage,(void **) &pPropSetStg1);
hr = pPropSetStg1->Create( FMTID_SummaryInformation, NULL, PROPSETFLAG_DEFAULT ,
STGM_CREATE|STGM_READWRITE|STGM_SHARE_EXCLUSIVE,
&pPropStg1 );
propspec.ulKind = PRSPEC_PROPID;
propspec.propid = 0x000000002;
PropVariantInit( &propvarWrite1 );
propvarWrite.vt = VT_LPWSTR;
propvarWrite.pwszVal = L"abc";
hr = pPropStg1->WriteMultiple( 1, &propspec, &propvarWrite, 0x00000000D);
if( FAILED(hr) ) throw L"Failed IPropertyStorage::WriteMultiple";
//////////code added by pankaj/////////////////
pFileStorage->QueryInterface(IID_IPropertySetStorage,(void **) &pPropSetStg);
hr = pPropSetStg->Create( FMTID_DocSummaryInformation, NULL, PROPSETFLAG_DEFAULT ,
STGM_CREATE|STGM_READWRITE|STGM_SHARE_EXCLUSIVE,
&pPropStg );
if( FAILED(hr) ) throw L"Failed IPropertySetStorage::Create";
// Write a Unicode string property to the property set
// propspec.ulKind = PRSPEC_LPWSTR;
// propspec.lpwstr = L"Property Name";
propspec.ulKind = PRSPEC_PROPID;
propspec.propid = 0x00000000C;
///
PropVariantInit( &propvarWrite1 );
propvarWrite1.vt = VT_LPWSTR;
propvarWrite1.pwszVal = L"Tittle";
propvarWrite.vt = VT_VARIANT | VT_VECTOR;
propvarWrite.capropvar.cElems = 1;
propvarWrite.capropvar.pElems = &propvarWrite1;
hr = pPropStg->WriteMultiple( 1, &propspec, &propvarWrite, 0x00000000D);
if( FAILED(hr) ) throw L"Failed IPropertyStorage::WriteMultiple";
LPSTR abc="Tittle";
//propspec.lpwstr = L"Contents";
propspec.propid = 0x00000000D;
propvarWrite.vt = VT_VECTOR | (VT_LPWSTR);
propvarWrite.calpstr.cElems = 1;
propvarWrite.calpstr.pElems = &abc;
hr = pPropStg->WriteMultiple( 1, &propspec, &propvarWrite, 0x000000002);
if( FAILED(hr) ) throw L"Failed IPropertyStorage::WriteMultiple";
/*propspec.propid = 0x00000000D;
propvarWrite.vt = VT_STORAGE;
propvarWrite.pStorage = pStorage;
hr = pPropStg->WriteMultiple( 1, &propspec, &propvarWrite, 0x000000002);
if( FAILED(hr) ) throw L"Failed IPropertyStorage::WriteMultiple";*/
propspec.ulKind = PRSPEC_PROPID;
propspec.propid = 0x000000003;
PropVariantInit( &propvarWrite );
propvarWrite.vt = VT_LPWSTR;
propvarWrite.pwszVal = L"RajeevSoft Inc. Punjab";
hr = pPropStg->WriteMultiple( 1, &propspec, &propvarWrite, 0x000000004);
if( FAILED(hr) ) throw L"Failed IPropertyStorage::WriteMultiple";
propspec.ulKind = PRSPEC_PROPID;
propspec.propid = 0x00000000A;
PropVariantInit( &propvarWrite );
propvarWrite.vt = VT_I4;
propvarWrite.iVal = 1234;
hr = pPropStg->WriteMultiple( 1, &propspec, &propvarWrite, 0x000000005);
if( FAILED(hr) ) throw L"Failed IPropertyStorage::WriteMultiple";
PROPID propidDictionary=PID_DICTIONARY;
WCHAR *pwszFriendlyName = L"Write/Read Properties Sample Property Set";
hr = pPropStg->WritePropertyNames( 1, &propidDictionary, &pwszFriendlyName );
if( FAILED(hr) ) throw L"Failed IPropertyStorage::WritePropertyNames";
pPropStg->Release(); pPropStg = NULL;
pPropSetStg->Release(); pPropSetStg = NULL;
pPropStg1->Release(); pPropStg1 = NULL;
pPropSetStg1->Release(); pPropSetStg1 = NULL;
pFileStorage->Release();pFileStorage = NULL;
// pStream1->Release();
}
catch( const WCHAR *pwszError )
{
wprintf( L"Error: %s (hr=%08x)\n", pwszError, hr );
}
if( pPropStg ) pPropStg->Release();
if( pPropSetStg ) pPropSetStg->Release();
if( pPropStg1 ) pPropStg1->Release();
if( pPropSetStg1 ) pPropSetStg1->Release();
}
Pankaj Mongia
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i would like to get string through mouse hooking. by the way, i don't know how to implement it. tell me getting string placed in mouse point.
thank you
have a nice day
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I want to copy some file from windows to Mac depending on
the request from a browser.Can any one let me know
if any API 's exist which can enable copying a file from
a windows (9x,NT,2k)to MAC Machine.
The problem which we are facing now is we have used
CopyFile() API to copy file between windows network
but this fails when the machine is an Apple MAC
Can anyone suggest what we have to do to overcome this
problem
I would also know is there any component which would facilitate file copying between multiple Paltform
Thanks bgpandey
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Does anyone know where can i get an example to make a good IRC Client? i put this on the request code but noone answer me, pls, answer here 
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Thanks man, now i can begin the construcction of my own software   , really thank you so much
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