C / C++ / MFC

17-Jan-04 10:58

Hello all,

I'm having difficulties to get the string of a menu item pressed.
What I'm doing is writing a IE toolbar and in one of the pull down menu's I dynamically add popup menu's which are also dynamically filled.

Just for a theoretical example let's say I have a button 'drives' on the toolbar. Pressing the pulldown menu will add some menu entries (the same amount of disk on my system, C; D; E; ...).
Every menu item is a popup itself, and a dynamically created Popupmenu is attached - containing the root level directories for the selected drive (temp, program files, winnt, ...).

Following is an adapted piece of code, but it works how it suppose to

	<br />
MENUITEMINFO mmi;<br />
mmi.cbSize=sizeof(MENUITEMINFO);<br />
mmi.fMask=MIIM_STRING | MIIM_DATA | MIIM_SUBMENU;<br />
<br />
char fn[50];<br />
<br />
// 3 drives in the example<br />
for (int i=0; i<3; i++)<br />
{<br />
    HMENU hMenuToInsert;<br />
    hMenuToInsert = CreatePopupMenu();<br />
    {<br />
	char drv[255];<br />
	while (getthedrives)<br />
	{<br />
	  sprintf( drv, "%s", a_directory);<br />
	  AppendMenu(hMenuToInsert, MF_ENABLED|MF_STRING, ID_DUMMY, drv);<br />
	}<br />
    }<br />
    sprintf( fn, "Drive %s", drvletter);<br />
    mmi.hSubMenu = hMenuToInsert;<br />
    mmi.dwTypeData = fn;<br />
    mmi.fType=MFT_STRING;<br />
    //insert the drives <br />
    InsertMenuItem(m_hDriveMenu, 2+i, TRUE, &mmi);<br />
<br />
}<br />

The problem I'm having is, is that I'm using a dummy ID (ID_DUMMY).
When my ON_COMMAND fires, I have no way to get the correct menu item using GetMenuItemInfo because
a) I'm using the same id for every popup menuitem inserted
b) I'm reusing the HMENU (hMenuToInsert) for my popmenu's

Does anyone know of a simple way to get the text of the menu (directorys on a drive in my case) pressed?

Thanks

Wim

Michael Dunn17-Jan-04 14:08

Michael Dunn

17-Jan-04 14:08

Why are you using the same ID for every menu item? You're defeating the purpose of IDs by doing that.

--Mike--
Ericahist | CP SearchBar v2.0.2 | Homepage | 1ClickPicGrabber New v2.0.1! | RightClick-Encrypt
You cannot truly appreciate Dilbert unless you've read it in the original Klingon.

Wim Jans18-Jan-04 0:25

18-Jan-04 0:25

Hi Michael,

I'm reusing them because I really have no clue how many directories I will have.
Let's say I have 10.000 directories, that means I have to define 10.000 unique id's. You know of a way to create that many on the fly, or maybe a better way to do it?
The other problem I have then is to what popupmenu the directory I clicked belongs (C:, D:, E Smile | :)

, but I supppose I can have a list of HMENU id's and I check every list/MENU_ID for success.

Thanks

Wim

Michael Dunn18-Jan-04 7:10

Michael Dunn

18-Jan-04 7:10

Well, command IDs can be in the range 1-65535. Just start a counter a 1 and increment it for every menu item you add. Each menu under the first level can use 1-65535, you don't need a unique ID for every single item if you think you'd ever have more than 65535. You can tell which top-level popup has been selected by handling WM_MENUSELECT, and from there you can work out which directory was selected.
You should also give the top-level popups IDs for easier tracking (and those IDs shouldn't be duplicated in the submenus). You can do this with InsertMenuItem().

--Mike--
Ericahist | CP SearchBar v2.0.2 | Homepage | 1ClickPicGrabber New v2.0.1! | RightClick-Encrypt
There is a saying in statistics that a million monkeys pounding on typewriters would eventually create a work of Shakespeare. Thanks to the Internet, we now know that this is not true.

Wim Jans18-Jan-04 8:48

18-Jan-04 8:48

Ok,

I see it now. One thing what I discovered when playing with the WM_MENUSELECT was that I couldn't get the (a random) text from my popup menu (just for a test, take the first entry of the popupmenu, I will move it to the WM_COMMAND later).

What I did was this:

<br />
LRESULT CMyToolBar::OnMenuSelect(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)<br />
{<br />
	if (lParam&&(HIWORD(wParam)&MF_POPUP))<br />
	{<br />
		HMENU hSubMenu = GetSubMenu ( (HMENU)lParam, LOWORD(wParam));<br />
<br />
		MENUITEMINFO mii;<br />
		mii.fMask = MIIM_STRING;<br />
<br />
		char c[2000];<br />
		mii.dwTypeData=c;<br />
		mii.cch=2000;<br />
<br />
		GetMenuItemInfo(hSubMenu, 0, TRUE, &mii);<br />
		MessageBox(mii.dwTypeData);<br />
	}<br />
	return 0;<br />
}<br />

According to the documentation, lParam contains the Handle to the menu I pressed (the main menu), and if HIWORD(wParam) contains flag MF_POPUP, the LOWORD(wParam) contains the the position pressed in the menu.

If I use GetSubMenu((HMENU)lParam, HIWORD(wParam)), I should get the handle to my popupmenu containing the directories, right?
I outputted the parameters, and the handle and index looked OK.

But when I used GetMenuItemInfo using the handle obtained with GetSubMenu and index 0 (the first Item in the popup menu), it returns an empty string.

Any idea what I'm doing wrong?

Thanks

Wim

Wim Jans20-Jan-04 8:46

Get default proxy (from IE)?

20-Jan-04 8:46

Michael,

Just wanted to thank you again for your excellent answer. Got it working now.

Regards

Wim

Simple Question

BaldwinMartin17-Jan-04 9:10

BaldwinMartin

17-Jan-04 9:10

If one has an app with a tray icon and menu, is there a way to create a graphic to the left side of the popup menu? It would run the complete vertical length of the menu.

Best Wishes,
ez_way

Re: Simple Question

Anonymous17-Jan-04 10:59

Anonymous

17-Jan-04 10:59

have a look menu classes

Anonymous17-Jan-04 8:23

Anonymous

17-Jan-04 8:23

Hi, I wrote an application which connects via an HTTP proxy. Can I get the default proxy from the system (hostname and port)? Alternatively can I get it from IE?

Re: Get default proxy (from IE)?

Joaquín M López Muñoz17-Jan-04 9:30

Joaquín M López Muñoz

17-Jan-04 9:30

Hi,

There is not such a thing as the system proxy. WinINet functions are tied to IE, and it is IE settings that you can get and set with this library. Take a look at InternetQueryOption documentation.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: Get default proxy (from IE)?

Anonymous17-Jan-04 9:33

Anonymous

17-Jan-04 9:33

Cheers, I'll try... following what I have found
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wininet/wininet/internetqueryoption.asp
http://support.microsoft.com/default.aspx?scid=http://support.microsoft.com:80/support/kb/articles/q226/4/73.asp&NoWebContent=1

UCS-2 to UTF-8 and reverse

Dominik Reichl17-Jan-04 8:21

Dominik Reichl

17-Jan-04 8:21

Hi!

I need to convert a TCHAR* string (which actually can be a char* or wchar_t* string) to UTF-8 format and the other way round.

I cannot use the MultiByteToWideChar and WideCharToMultiByte functions.

Is there a small, tiny library that does this? I've had a look at IBM's ICU, but this library does much too much, I don't need all those additional conversion functions, etc.

Or is there perhaps a simple method how I can do the conversion myself?

Thanks in advance!
Dominik

_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do??
(doesn't work on NT)

Re: UCS-2 to UTF-8 and reverse

Jörgen Sigvardsson17-Jan-04 8:47

Jörgen Sigvardsson

17-Jan-04 8:47

I dunno how allergic you are to the LGPL license, but here's one library which can do the transformation for you: http://www.gnu.org/software/libiconv/[^]

--
Seraphim Shock. Gold for your ears.

Change MFC Icon

shultas17-Jan-04 7:31

shultas

17-Jan-04 7:31

Hey all.

I have read a couple of articles on this site (and others) that I thought would help out, but was not exactly what I was looking for.

I have modified the default "MFC" icon in my app to put my own in there. I compile and run it, all is fine, it shows up correctly.

However, when I am looking at files with Explorer, the file shows up with the MFC icon! It shows up with the MFC icon, then the program name, and then "TODO: <file description="">" ... I figured out where I put in the description, company name and all that good stuff, but I can not figure out how to make it use the icon that I created that gets displayed on the taskbar when the program runs. Any suggestions?

Thanks

l a u r e n17-Jan-04 7:51

l a u r e n

17-Jan-04 7:51

the icons have different sizes for different display contexts
make sure u edit the 16x16 icon too
Wink | ;)

"there is no spoon"
biz stuff about me

shultas17-Jan-04 8:47

shultas

17-Jan-04 8:47

If I open up my project , under "Icon" there is only one. IDR_MAINFRAME and under appearance it says "32x32". I've looked all through the resources and do not have a 16x16 or any other icon in there.

Do I have to add a new ICON and make it 16x16? If so, how would I then tell the program to use it?

Thank You

Michael Dunn17-Jan-04 8:49

Michael Dunn

17-Jan-04 8:49

One icon resource can contain multiple sizes of icons, IDR_MAINFRAME has a 32x32 and 16x16 in it, you need to change both. In VC 6 you select the size in the Device combo box in the icon editor.

--Mike--
Ericahist | CP SearchBar v2.0.2 | Homepage | 1ClickPicGrabber New v2.0.1! | RightClick-Encrypt
If my rhyme was a drug, I'd sell it by the gram.