Invoke Help File when F1 is pressed - C / C++ / MFC Discussion Boards

,a quick queston regarding files

r i s h a b h s2-Mar-03 19:19

r i s h a b h s

2-Mar-03 19:19

dear all,
how can i get the Last Modification Date Of any File (Not the Creation date) using API.

thanx Rose | [Rose]

Re: ,a quick queston regarding files

Joan M2-Mar-03 20:44

Joan M

2-Mar-03 20:44

Easy one! : take a look at

BResultGetFileTime = GetFileTime(hFile,&ftCreacio,&ftDarrerAcces,&ftLastModification);

Hope this helps...

Re: ,a quick queston regarding files

KingsGambit2-Mar-03 22:14

KingsGambit

2-Mar-03 22:14

You can use the CFileStatus class along with CFile::GetStatus function to get the modified time. CFileStatus class contains a CTime member m_mtime.

Exe With Exports

vikramlinux2-Mar-03 18:43

vikramlinux

2-Mar-03 18:43

Is it possible to built an EXE File With Exports? Forget about COM server Exes... Hmmm | :|

Vikrams

Re: Exe With Exports

KingsGambit2-Mar-03 19:21

KingsGambit

2-Mar-03 19:21

Yes it is quite possible to export functions from an exe as we export from a dll. You can add global function in your exe and use the extern "C" _declspce(dllexport) with the function declaration.

use loadLibrary and GetProcAddress to load this exe and call the exported function in it. Don't forget the declare the function before using it by using the keyword _declspec(dllimport).

Re: Exe With Exports

vikramlinux2-Mar-03 19:45

vikramlinux

2-Mar-03 19:45

I declared one funcion into my win32 EXE as

extern "C" __declspec(dllexport) void Function(void){
MessageBox(NULL,"","",MB_OK);
}

and user in other win32 EXE as

typedef void (*FUNCTION)();
FUNCTION Function=NULL;
HINSTANCE MyInstance=LoadLibrary ("c:\\ExeFile.exe");
if(MyInstance){
Function=(FUNCTION)GetProcAddress(MyInstance,"Function");
if (Function)
{
Function();
}

But It Gives me access violation Error... Frown | :(

Vikramvs

Re: Exe With Exports

KingsGambit2-Mar-03 22:11

KingsGambit

2-Mar-03 22:11

Instead of the MessageBox, if you return some value, it will work. So, based on this return value you can display the message box in your application.

Invoke Help File when F1 is pressed

Kamesh2-Mar-03 18:19

Kamesh

2-Mar-03 18:19

I would like to invoke help file of my application when F1 is pressed by user. System is trying to open Windows Help when i press F1 Any suggesstions.

With Thanks & Regards
--Kamesh

Re: Invoke Help File when F1 is pressed

KingsGambit2-Mar-03 18:34

KingsGambit

2-Mar-03 18:34

Add message map for the command ID ID_HELP in your application.
Like, ON_COMMAND(ID_HELP, OnMyHelpFun). Inside OnMyHelpFun, you can add code for invoking the help file.

Re: Invoke Help File when F1 is pressed

Kamesh2-Mar-03 20:55

Kamesh

2-Mar-03 20:55

Thanks for your reply i will do as u suggesst.

32bit to 4bytes(4*8bits)?

anju2-Mar-03 18:02

anju

2-Mar-03 18:02

Hi,All
In my application,
i have to convert 32bit number to 4bytes(i.e each byte having 8bits).
can any one help me..
thanks in advance
regrads

Rose | [Rose]

anju

Re: 32bit to 4bytes(4*8bits)?

Taka Muraoka2-Mar-03 18:15

Taka Muraoka

2-Mar-03 18:15

int x = 0x01020304 ;
const unsigned char* p = (unsigned char*) &x ;
for ( int i=0 ; i < 4 ; ++i )
    cout << p[i] << endl ;

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Re: 32bit to 4bytes(4*8bits)?

C^hris L^osinger2-Mar-03 18:28

C^hris L^osinger

2-Mar-03 18:28

unsigned int i = 0x11223344;
BYTE *pb = (BYTE *)&i;
TRACE("%d, %d, %d, %d", pb[0], pb[1], pb[2], pb[3]);

When history comes, it always takes you by surprise.

Bobber!

Re: 32bit to 4bytes(4*8bits)?

PJ Arends2-Mar-03 18:40

PJ Arends

2-Mar-03 18:40

int x = 0xfc12a15d;
char c[4];
for (int y = 0; y < 4; ++y)
    c[y] = (x & (0xff << (y * 8))) >> (y * 8);

Sonork 100.11743 Chicken Little

"You're obviously a superstar." - Christian Graus about me - 12 Feb '03

Within you lies the power for good - Use it!

Re: Thanks

anju5-Mar-03 21:18

anju

5-Mar-03 21:18

Hi,
Thanks for every one
contributed inthis context.
now my task is simple with your sugestions.
once again thanks to all.
Rose | [Rose]

anju

Get the path to a dll

Christian Graus2-Mar-03 15:52

Christian Graus

2-Mar-03 15:52

I have a dll ( a Palm conduit actually ) and I'd like to know the path to the dll from within the dll in dllmain. Does anyone know how this can be done ?

Christian

NO MATTER HOW MUCH BIG IS THE WORD SIZE ,THE DATA MUCT BE TRANSPORTED INTO THE CPU. - Vinod Sharma

Re: Get the path to a dll

Christian Graus2-Mar-03 16:20

Christian Graus

2-Mar-03 16:20

Shame on me, the answer was in the FAQ...

Christian

NO MATTER HOW MUCH BIG IS THE WORD SIZE ,THE DATA MUCT BE TRANSPORTED INTO THE CPU. - Vinod Sharma

Re: Get the path to a dll

Michael Dunn2-Mar-03 16:28

Michael Dunn

2-Mar-03 16:28

Just to clarify the FAQ (since it deals with an EXE, not a DLL), DllMain() is passed the HMODULE of the DLL. Pass that handle to GetModuleFileName().
If you pass NULL to GetModuleFileName(), you'll get the path of the EXE that loaded your DLL, which isn't what you're looking for.

--Mike--
PROCRASTINATION: Hard work often pays off after time, but laziness always pays off now.

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Re: Get the path to a dll

Anonymous2-Mar-03 16:23

Anonymous

2-Mar-03 16:23

i'm not really sure so don't quote me but i vaguely remember trying to do this years ago.

::GetModuleHandle

or maybe these which are in PSAPI

::EnumProcessModules
::GetModuleInformation
::GetModuleFileNameEx

How to get Text Width and Height?

Aidman2-Mar-03 13:31

Aidman

2-Mar-03 13:31

Hi, all

How do you get the exact width and height (even if the user has increased or decreased the DPI settings) of a single-font multi-line text without drawing it? Do you use GetCharWidth32 for this process or are there better ways? Could you please demonstrate this process in code please =)

Aidman » over and out

Re: How to get Text Width and Height?

C^hris L^osinger2-Mar-03 13:39

C^hris L^osinger

2-Mar-03 13:39

CDC::GetTextExtent or DrawTextEx with the DT_CALCRECT flag

-c

When history comes, it always takes you by surprise.

Bobber!

Re: How to get Text Width and Height?

Aidman3-Mar-03 1:05

Aidman

3-Mar-03 1:05

Great thanks! Smile | :)

Aidman » over and out

Function signature

Gerald Schwab2-Mar-03 13:25

Gerald Schwab

2-Mar-03 13:25

I want to use some functions exported from a dll, but I don't have the documentation or the header file. I can get the names of the exported functions by using dumpbin, but how do I determine the function parameters?

Re: Function signature

Anders Molin2-Mar-03 14:50

Anders Molin

2-Mar-03 14:50

Guess...
That's the only way Wink | ;)

- Anders

Money talks, but all mine ever says is "Goodbye!"

Re: Function signature

Taka Muraoka2-Mar-03 15:29

Taka Muraoka

2-Mar-03 15:29

If the function name is mangled, you can demangle it using UNDNAME.EXE.

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