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Hi,
I use the function ShellExecute(......) to open a file.
How to find if a file has been already opened?
Thanks,
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hello, i'm doing a project using mfc, vc++... i'd created a dialog as my first window, i decided to create a menu as my second window, however, to link the menu to the dialog is not as easy as what i think...
if i wanna call a second dialog using the first dialong, i may use the .domodal to call it... but if i wanna call a menu, what should i do with it???
help!!!
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I guess it's CMenu::TrackPopupMenu you're looking for, probably with TPM_RETURNCMD flag.
Tomasz Sowinski -- http://www.shooltz.com
no animal was harmed more than once during creation of this post
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If you want the menu options to always be available. Do something like this in your OnInitDialog()
CMenu menu;
menu.LoadMenu(ID_OF_MENU);
SetMenu(menu.m_hMenu);
menu.Detach();// now owned by dialog
DrawMenuBar();
The dialog will destroy the menu automatically when itselef is destroyed
You then just need to write ON_COMMAND() handlers for each item. If you need to enable/disable items, handle the WM_INITMENUPOPUP message and process the individual items there.
Roger Allen - Sonork 100.10016
Roger Wright: Remember to buckle up, please, and encourage your friends to do the same. It's not just about saving your life, but saving the quality of life for those you may leave behind...
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I'v got a CString string as follows
CString strPacket = "$1234567FFFFFFFF#00
I want to parse the string so that str1 = "1234567" & str2 = "FFFFFFFF"
Any suggestions on how to do this
At the moment I'm using the following, however there must be an easier way of doing this.
m_strRspData = "";
for(i = 1; i < 9; i++){
m_strHex = m_strRspPacket.GetAt(i);
m_strRspData += m_strHex;
}
m_strRspData.MakeUpper();
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Try Tokenizer class at Codeproject.
Robert-Antonio
It's a good luck, if you meet a real fink. Then you get a respect to
normal, mid-honest people."
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Something like:
int x = 0;
while (isdigit(strPacket[x]))
{
str1 += strPacket[x];
x++;
}
str2 = strPacket.Mid(x);However, if you are always breaking between the 8th and 9th characters, just use Left() and Mid().
"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)
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VC6.0
Hello,
i have a question, how can i terminate a process from an another process? Ich my Situation i want start program b.exe from a.exe. But b.exe should start once a time! I do it with that:
1) First start b.exe:
PROCESS_INFORMATION ProcInfo;
STARTUPINFO startupInfo;
memset(&startupInfo, 0, sizeof(startupInfo));
startupInfo.cb = sizeof(startupInfo);
CreateProcess(NULL, // lpApplicationName
"C:\\b.exe", // lpCommandLine
NULL, // lpProcessAttributes
NULL, // lpThreadAttributes
NULL, // bInheritHandles
NULL, // dwCreationFlags
NULL, // lpEnvironment
NULL, // lpCurrentDirectory
&startupInfo, // lpStartupInfo
ProcInfo); // lpProcessInformation
2) Second i check, wheter program is still activ
HANDLE handle = OpenProcess(PROCESS_ALL_ACCESS,TRUE,pProcInfo->dwProcessId);
if (handle!=NULL)
{
... if programm b.exe activ terminate b.exe ...
}
else
{
... start b.exe ...
}
3) If programm b.exe active i terminate it and restart it
I do it with this code:
TerminateProcess(m_pProcInfo->hProcess, 0);
Now i got back to step 1:
This works fine in w2k, but in xp step 2 doesn't work. The handle is always not NULL.
What is wrong? Give's a better way to do that?
Thanks
Chris
Student
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From the top of my head: maybe instead of PROCESS_ALL_ACCESS you should use PROCESS_TERMINATE?
Tomasz Sowinski -- http://www.shooltz.com
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Hello Tomasz,
thank you for your tip. I changed PROCESS_ALL_ACCESS to PROCESS_TERMINATE in OpenProcess(...). But i have the same effect as before.
When i alredy had terminated the programm b.exe and it doesn't exist in the tast-manager. I do step 2 and the handle is alawy not NULL. But i see this effect only in XP. W2k show me NULL and I can start b.exe with createprocess.
What do i wrong!
Thanks
Chris
ceuba@gmx.net
Student
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ceuba wrote:
When i alredy had terminated the programm b.exe and it doesn't exist in the tast-manager. I do step 2 and the handle is alawy not NULL. But i see this effect only in XP. W2k show me NULL and I can start b.exe with createprocess.
The process ID may be reused, so maybe you're getting the handle for other process? Anyway, since you're calling CreateProcess yourself, why don't you use another thread and WaitForSingleObject?
Tomasz Sowinski -- http://www.shooltz.com
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I need to convert CString string to unsigned long. Exammple
Need CString strPacket = "FFFFF400" to unsigned long
Also any idea how to add a value to strPacket. What I mean is
strPacket = "FFFFF400" + "4" = "FFFFF404";
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sscanf((LPCTSTR)strPacket, "%ul", &myulVar);
simple, rustik.... assuming that your string is a valid unsigned long value...
TOXCCT >>> GEII power
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Caoimh wrote:
I need to convert CString string to unsigned long.
Use strtoul() for this.
Caoimh wrote:
Also any idea how to add a value to strPacket. What I mean is
strPacket = "FFFFF400" + "4" = "FFFFF404";
Assuming that strPacket is a CString object, this is perfectly valid:
strPacket = "FFFFF400";
strPacket += "4";
"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)
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(cough)
Actually, I think they meant
unsigned long x;
unsigned long y;
x = strtoul(str,NULL,16);
y = strtoul(str2, NULL,16);
strPacket.Format("%08lx", x+y);
Steve S
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I usually use
<pre lang="c++"> _wtol(cstringvar)
- Michael Haephrati מיכאל האפרתי
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I'm thinking about porting a time-critical code from VC++6.0 to VC++7.0, did anyone make something like that and could observe peformance gains ? Probably I'll waste some time doing it...
Tx for any information 
GuimaSun
www.nexsun.com.br
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You could theoretically get some perf boost from Whole Program Optimization introduced in 7.0. Of course, it greatly depends on specifics of your code. Did you actually profile it, anyway? 
Tomasz Sowinski -- http://www.shooltz.com
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I am getting an value like this
a+(b<<9)+(c<<17)=value
how can i recalculate a,b and c if i only have the value c is a fix value (512) and can also be obtained by
c= value>>17
how can i resolve a and b
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Mathematically not possible to solve a equation with 3 unknown and one equation.
You have to assume any three values and find the other.
MSN Messenger.
prakashnadar@msn.com
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<br />
a = value & 0x1FF;<br />
b = (value >> 9) & 0x1FF;<br />
where I assume, that a and b are from interval (0, 511)
Robert-Antonio
"CRAY is the only computer, which runs an endless loop in just 4 hours"
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perfect stranger wrote:
how can i recalculate a,b and c if i only have the value c is a fix value (512)...
If you already know the value of 'c', then there is no need to calculate its value. You are simply left with a problem of solving an equation with two unknowns. There are plenty of algebra/high school math sites that show how to do this.
"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)
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Hi All,
Iam trying to Draw a Bitmap to screen using the DeviceContext function StretchBlt.
//These are my parameters in LogicalUnits
int xCord;
int yCord,
int bitmapwidth,bitmapheight
StretchBlt(xCord,ycord,bitmapwidth,bitmapheight,...
I want the first 4 parameters of the StretchBlt to be converted to deviceCo-ordinates(Pixels).How Could I do that.
I found the function "LPtoDp" in Msdn,But this function doesnt return me anything to pass the converted valuesto the stretchBlt function.
Help!
Thanks...
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POINT pt = {10, 20};
LPtoDP(&pt, 1);
Robert-Antonio
"Science is a differerntial equation.
Religion is a boundary condition."
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