Re: problem with context menu in mdi - C / C++ / MFC Discussion Boards

Problems with accelerators and modeless dialogs!

Daniel Strigl5-Nov-02 1:06

5-Nov-02 1:06

I call the FindText SDK function to open a modeless "Find / Replace" dialog.

I have defined some keys with accelerators (like 'S', ...) in my application.

So, the problem is that the modeless "Find / Replace" dialog do not get this keys - the main application get the keys!

How to fix???

Daniel Wink | ;)

---------------------------
Never change a running system!

Re: Problems with accelerators and modeless dialogs!

dabs5-Nov-02 3:07

dabs

5-Nov-02 3:07

Override the dialog PreTranslateMessage( ). If the accelerator keys are defined in the main accelerator table you could use this code inside PreTranslateMessage:

<br />
<br />
if ( pMsg->message == WM_KEYFIRST && pMsg->message <= WM_KEYLAST )<br />
{<br />
    CWnd* pMainWnd = AfxGetMainWnd( );<br />
    if ( pMainWnd != NULL )<br />
    {<br />
        HACCEL hAccel = static_cast< CFrameWnd* >( pMainWnd )->GetDefaultAccelerator( );<br />
        if ( hAccel != NULL && ::TranslateAccelerator( pMainWnd->GetSafeHwnd( ), hAccel, pMsg ) )<br />
        {<br />
            return TRUE;<br />
        }<br />
    }<br />
}<br />
<br />
// Let base class handle other cases:<br />
return CDialog::PreTranslateMessage( pMsg );<br />
<br />

Wenn ist das Nunstück git und Slotermeyer? Ja! Beierhund das oder die Flipperwaldt gersput!

Re: Problems with accelerators and modeless dialogs!

Daniel Strigl5-Nov-02 3:17

Daniel Strigl

5-Nov-02 3:17

Thanks! I will try it!

Daniel Wink | ;)

---------------------------
Never change a running system!

Transparent Bitmap?

Jawache5-Nov-02 1:00

Jawache

5-Nov-02 1:00

Hi,
I'm trying to add bitmaps to the menu in my vc++6 app.

The problem is that my bitmaps have a purple background and this is displayed in the menu. How do i load a bitmap and set a color to transparency?

cheers

Asim Hussain
e: asim@jawache.net
w: www.jawache.net

Re: Transparent Bitmap?

jhwurmbach5-Nov-02 1:42

jhwurmbach

5-Nov-02 1:42

You need to do a transparent blit into a bitmap-dc. W2K and up have a API-fkt doing this. Older Windows have to emulate that via several blits using a sequence of ROPs.
I found such a routine on codeguru*duck under the knife thrown*.
Alternatively, the function AfxLoadSysColorBitmap() might do what you want. It is in afxext.h.

MSChart

Ruca5-Nov-02 1:02

Ruca

5-Nov-02 1:02

Hi everybody,
A question with regards the above. How does one show the X-axis label and the Y-axis label? Not the axis values.
In other words the x-axis label could be something like:
Time (hours)

Thanks
Regards

Rui

problem with context menu in mdi

fargo2k5-Nov-02 0:35

fargo2k

5-Nov-02 0:35

I'm creating a MDI application which creates a context menu by re-using a menu from the parent frame. This works fine when the child frame is not maximised. But when the child frame is maximised I get the wrong menu. i.e instead of getting the 4th item in the menu, it gets the 5th when maximised. This is not really true, as I notice that an icon is inserted as the 0th item in the menu when maximised. ie

restore view:
MENU
0th = File, 1st = Edit, 2nd = View, 3rd = Model

maximised view
MENU
0th = ICON, 1st = File, 2nd = Edit, 3rd = View, 4th = Model

The code I've used for my context menu is shown below

CMDIFrameWnd *pMainFrame = GetMDIFrame();

CMenu *pMenu = pMainFrame->GetMenu();

pMenu = pMenu->GetSubMenu(3);
pMenu->TrackPopupMenu(TPM_LEFTALIGN + TPM_LEFTBUTTON, point.x, point.y, this, NULL);

any please would be appreciated

Re: problem with context menu in mdi

Ravi Bhavnani5-Nov-02 0:54

Ravi Bhavnani

5-Nov-02 0:54

You could use CMenu::GetMenuItemCount() to determine whether to get the 3rd or 4th submenu.

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

Re: problem with context menu in mdi

fargo2k5-Nov-02 1:35

fargo2k

5-Nov-02 1:35

thx for the tip, the menu count method fix the problem. But I've decide the use the GetWindowPlacement() function to get the state of the child window, which is more general I think

CMDIFrameWnd *pMainFrame = GetMDIFrame();

CMenu *pMenu = pMainFrame->GetMenu();

WINDOWPLACEMENT wp;
GetWindowPlacement(&wp);

if (wp.showCmd == SW_SHOWMAXIMIZED)
pMenu = pMenu->GetSubMenu(4);
else
pMenu = pMenu->GetSubMenu(3);

pMenu->TrackPopupMenu(TPM_LEFTALIGN + TPM_LEFTBUTTON, point.x, point.y, this, NULL);

Smile | :)

Change from decimal number to hex character

ooosawaddee35-Nov-02 0:32

ooosawaddee3

5-Nov-02 0:32

If I have this decimal number (Base 10) where the maximum value is 256, and I want to convert that to a hexidecimal in unsigned char format.

<br />
data[0] = 154; // 9A in base 16<br />
data[1] = 203; // CB in base 16<br />
data[2] = 15; // 0F in base 16<br />
data[3] = 54; // 38in base 16<br />
data[4] = 248; // F8 in base 16<br />
data[5] = 175; // AF in base 16<br />

and I want to change data(base 256) to Ctring which have format in base 16 character

<br />
unsigned char *m_data;<br />
<br />
and I want <br />
m_data = "9ACB0F38F8AF";<br />

Do you know how to do that?

Re: Change from decimal number to hex character

Anatari5-Nov-02 0:43

Anatari

5-Nov-02 0:43

Didn't you just ask this question earlier? You can use the CString Format() member function.

If you need an unsigned character array instead of a CString class you can simply use the (LPCTSTR) cast operator to retrieve the pointer and then cast it to an unsigned char * pointer.

I suspect your asking this question again because your using C and not C++. You really need to put more information in your questions, if you expect to get your question answered correctly. If your using C, then you would use the sprintf() function which has the same functionality of Format(). Get a C book or search for sprinf() on the web!

<br />
sprintf(m_data, "%2H%2H%2H..",data[0], data[1].......<br />

- Anatari

Re: Change from decimal number to hex character

Stephane Rodriguez.5-Nov-02 0:56

Stephane Rodriguez.

5-Nov-02 0:56

Anatari wrote:
suspect your asking this question again because your using C and not C++. You really need to put more information in your questions, if you expect to get your question answered correctly.

He he, I couldn't agree more. Big Grin | :-D

Probably these guys have never done any kind of useful bug reporting in their whole lives.
The bad thing is, it's my experience that trying to teach posters to better ask questions only made me have an insult in return...

Back to real work : D-25.

Re: Change from decimal number to hex character

Gary R. Wheeler5-Nov-02 11:10

Gary R. Wheeler

5-Nov-02 11:10

Not to mention the high probability that we're helping the kid do his homework...

Software Zen: delete this;

Re: Change from decimal number to hex character

Ravi Bhavnani5-Nov-02 0:57

Ravi Bhavnani

5-Nov-02 0:57

CString strOutput;
int nNumDataItems = 6;
for (int nData=0; (nData < nNumDataItems); nData++) {
    CString strHex;
    strHex.Format ("%0X", data[nData]);
    strOutput += strHex;
}

char szOutput [256];
strcpy (szOutput, "");
int nNumDataItems = 6;
for (int nData=0; (nData < nNumDataItems); nData++) {
    char szHex [4];
    sprintf (szHex, "%0X", data[nData]);
    strcat (szOutput, szHex};
}

Did we just do your homework for you?

/ravi

Let's put "civil" back in "civilization"
http://www.ravib.com
ravib@ravib.com

MIME types & application

ov5-Nov-02 0:07

5-Nov-02 0:07

I have an application that working with files named like <name>.ext (ext is my extension)
I can run it this way: myapp.exe <file.ext>

But when I try to open this file from HTML page (<a href="a.ext">file</a> ) IE asks me about open or save. How can I have it to stop do this?

I've registered my MIME-type in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Accepted Documents

but it have no effect.

With the best regards, Vitaly.

Re: MIME types & application

Stephane Rodriguez.5-Nov-02 0:21

Stephane Rodriguez.

5-Nov-02 0:21

Quick ref[^]

More comprehensive reference.[^]

Back to real work : D-25.

Re: MIME types & application

Anatari5-Nov-02 0:18

Anatari

5-Nov-02 0:18

I don't think you can force a user to open your file automatically from a web page. That would be a huge potential security risk. However, to set your own computer to open it automatically, just check the box "don't ask me again" when choosing open or save.

- Anatari

Re: MIME types & application

ov5-Nov-02 3:17

5-Nov-02 3:17

This haven't helped. This checkbox reappeared on next download.

And setting "Confirm open on download" in (Any Folder)->Tools menu->Folder Options->File Types->(My File)->Advanced haven't helped too.

Win2k, IE 6.0

With the best regards, Vitaly.

Saving/Copying a file.

a3gupta4-Nov-02 23:12

a3gupta

4-Nov-02 23:12

Hello,
I have dialog based application in VC++ 6.0. I need to copy a file to a user specified location. So I am making a button, when clicked by user, would just ask for the path that they want copy the file to. They don't need to specify the name of them file. It is a default database file. After they specify the path I need to copy the database file to that location.
I don't know how exactly I should implement it. I couldn't really find any function that will make a copy of a file to a specified location. What control and functions do I need to use.
Thanks for helping me with this basic problem.!!
I really appreciate it.
Sincerey,
Anjum.

Re: Saving/Copying a file.

jhwurmbach4-Nov-02 23:19

jhwurmbach

4-Nov-02 23:19

For the dialog to select the Path you could use SHBrowseForFolder Dead | X|

,
or better look here at CP for a really useable replacement.
And what is wrong with ::CopyFile()/::CopyFileEx()?

Re: Saving/Copying a file.

a3gupta4-Nov-02 23:24

a3gupta

4-Nov-02 23:24

Thanks for your quick reply.
I couldn't really find the information on CopyFile()/""CopyFileEx(). Also Could you please tell me what SHBrowseForFolder is? .. I tried to search for both of these things that you suggested in the MSN VStudio Help but did't find anything . Frown | :-(

Thanks !
Anjum.

Re: Saving/Copying a file.

jhwurmbach4-Nov-02 23:35

jhwurmbach

4-Nov-02 23:35

Well, my local MSDN-copy has it after entering 'shbr'.
And in the online MSDN, I just needed to enter the name of the function and found
http:// msdn.microsoft.com / library / en-us / shellcc / platform / Shell / reference / functions / shbrowseforfolder.asp

Now THIS is really information at your fingertips...

Re: Saving/Copying a file.

Joan M4-Nov-02 23:23

Joan M

4-Nov-02 23:23

use this:

::CopyFile(csOrigen,csDesti,TRUE)

where csOrigen is the source path (CString),
csDesti is the destination path (CString too),
and the last BOOL parameter is a flag that defines if you want the operation to fail if the file exists.

Take a look at the MSDN for further information...

Re: Saving/Copying a file.

a3gupta4-Nov-02 23:26

a3gupta

4-Nov-02 23:26

Joan,
Thanks, your reply helps. Just one quick follow up question. What is the best way to get the Destination path from the user? .. Thanks!

Anjum.

Re: Saving/Copying a file.

Joan M4-Nov-02 23:37

Joan M

4-Nov-02 23:37

Take a look at this link, it's an article in codeproject regarding this.

http://www.codeproject.com/treectrl/pathpicker.asp

NOTE: I've never used it.

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