C / C++ / MFC

Pavel Klocek11-Sep-02 7:13

Pavel Klocek

11-Sep-02 7:13

If you are using MFC, you can use CMenu methods like AppendMenu.
Following code snippet loads menu from resources and adds a separator and a dynamic menuitem:

void CMyView::OnContextMenu(CWnd* pWnd, CPoint point) 
{
	{
		if (point.x == -1 && point.y == -1){
			//keystroke invocation
			CRect rect;
			GetClientRect(rect);
			ClientToScreen(rect);

			point = rect.TopLeft();
			point.Offset(5, 5);
		}

		CMenu menu;
		//You can optionaly load a static part of the menu from resources
                VERIFY(menu.LoadMenu(IDR_CONTEXT_MENU));

		CMenu* pPopup = menu.GetSubMenu(0);
		ASSERT(pPopup != NULL);

		pPopup->AppendMenu(MF_SEPARATOR);
		pPopup->AppendMenu(MF_STRING,1111,"Dynamic");

		CWnd* pWndPopupOwner = this;

		while (pWndPopupOwner->GetStyle() & WS_CHILD)
			pWndPopupOwner = pWndPopupOwner->GetParent();

		pPopup->TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTBUTTON, point.x, point.y,
			pWndPopupOwner);
	}
}

If you want the menu completely dynamic, then add a MF_POPUP instead of LoadMenu.

Pavel
Sonork 100.15206

Josh Knox11-Sep-02 7:39

Josh Knox

11-Sep-02 7:39

Thanks Pavel,

That'll work great. My next question is how to map commands to the dynamically added menu items?

Josh Knox

We will rid the world of buttmunching pussnuts. Armed only with my blunt spoon of death and my circumcising potato peeler. Death and torture to them all. - Michael Martin

---Bob3D---

Anonymous11-Sep-02 8:11

11-Sep-02 8:11

Sorry I can't help you, but I had the same problem.

I dynamically create a menu that contain a certain number of IP adresses, like :

_TRAYMENU_
192.168.0.1
62.43.12.10
etc...

and I want to copy the IP to the clipboard when I click on it (I know for the clipborad, but I don't know how to map commands...)

Thanks!

Josh Knox11-Sep-02 9:44

Josh Knox

11-Sep-02 9:44

Look up the DYNAMENU sample in MSDN. It details how to do this stuff.

Josh Knox

We will rid the world of buttmunching pussnuts. Armed only with my blunt spoon of death and my circumcising potato peeler. Death and torture to them all. - Michael Martin

---Bob3D---

Mouse and Keyboard question

Pavel Klocek11-Sep-02 10:26

Pavel Klocek

11-Sep-02 10:26

Add an ON_COMMAND or ON_COMMAND_RANGE macros to the message map section of the class where you want to catch them:

BEGIN_MESSAGE_MAP(CMainFrame, CMDIFrameWnd)
	//{{AFX_MSG_MAP(CMainFrame)
	ON_WM_CREATE()
	ON_COMMAND(ID_VIEW_DLLTEST, OnViewDlltest)
        ... and other macros added by class wizard
	//}}AFX_MSG_MAP
	ON_COMMAND(ID_xxxx, OnXxxx)  //<<< manually add the handler mapping here
END_MESSAGE_MAP()

You also need to add the void OnXxxx() method to your class.

Pavel
Sonork 100.15206

Luis E. Cuadrado11-Sep-02 5:01

Luis E. Cuadrado

11-Sep-02 5:01

Hello everybody:
I want a function to be exectured when I press CTRL + Click over a bitmap image in a Dialog. I know how to do that when I to a Ctrl + Click over the Dialog itself using the OnLButtonDown() function. What do I need to do to make it happen by just clicking the bitmap image? Any answer is more than welcome.

Regards,

Luis E. Cuadrado
Blush | :O

)

Re: Mouse and Keyboard question

Roger Allen11-Sep-02 5:19

Roger Allen

11-Sep-02 5:19

Place the bitmap in a static text control on your dialog. Give the control a unique ID and set the notify style for it. You can then write a handler for BN_CLICKED for the static control and check to see whether the control key is pressed (GetKeyState(VK_LCONTROL) || GetKeyState(VK_RCONTROL))

Roger Allen
Sonork 100.10016

I think I need a new quote, I am on the prowl, so look out for a soft cute furry looking animal, which is really a Hippo in disguise. Its probably me.

Re: Mouse and Keyboard question

Luis E. Cuadrado11-Sep-02 7:29

Luis E. Cuadrado

11-Sep-02 7:29

Hello:
I tried what you told me and this is what I put in my code:

void CMyClass::OnPicClicked() <br />
{<br />
	  // TODO: Add your control notification handler code here<br />
	<br />
	if ((GetKeyState(VK_LCONTROL) || GetKeyState(VK_RCONTROL)))<br />
	{<br />
               //MY STUFF HERE<br />
	}<br />
}

Does that looks correct? I run my application and it doesn't work.

Thank you for your reply.

Regards,

Luis E. Cuadrado
Blush | :O

)

Re: Mouse and Keyboard question

Luis E. Cuadrado11-Sep-02 8:33

Luis E. Cuadrado

11-Sep-02 8:33

In my previous post I told you that I didn't work. I take that back. It works. I forgot to set the notify style for the CStatic. Works perfect. Thank you very much.

Regards,

Luis E. Cuadrado
Blush | :O

)

WebBrowser AX control Filedownload event

Anonymous11-Sep-02 4:56

CDocument::SetTitle and split views?

11-Sep-02 4:56

Filedownload event is not caugth or not thrown.
I cannot catch it.

Anyone knows the solution????

Thanks

dazinith11-Sep-02 3:58

dazinith

11-Sep-02 3:58

hio!

i have a split view that i am using, and whenever i replace any view i set the documents title.. the problem is that when i click inside of a field in any of these views the title somehow gets set to the filename of the document (which i beleive is the default of CDocument::SetTitle)

any suggestions? here is an example of how im setting the title:

void CMainFrame::ShowHeader()
{
	CView* pView = GetActiveView();
	CMyDoc* pDoc = (CMyDoc*)(pView->GetDocument());
	m_wndSplitter.ReplaceView(0,0,RUNTIME_CLASS(CHeaderView),CSize(500,HEADERHEIGHT), pDoc);
	SetDocTitle(pDoc, pDoc->m_pComp, pDoc->m_pLoc); // set the title appropriately
	m_wndSplitter.LockBar(false);
}

the SetDocTitle() just calls the document's set title function with it formatted the way i want it to look..

-dz

CDHtmlDialog detecting NewWindow

Anonymous11-Sep-02 3:52

11-Sep-02 3:52

Hi,
Iam using CDhtmlDialog class.
How can I trap newWindow ?.

Iwant open the new window using my own browser dialog not the IE browser.

Thanks

Open Saved Document

Anonymous11-Sep-02 2:53

getting to a bitmap resource

11-Sep-02 2:53

I have a COM dll and I am using the libs from Office 2000. When the user hits a button, I open Word. When I open word, sometimes there is text that the user wants to edit so I put the text in a file, then put this filename in the CreateProcess function call so that Word will open this file. But I am having on irritating issue. Every time I do this with Office 2000, I keep getting the messagebox "Do you want to revert to the saved document" right when Word opens. I have tried several things and nothing seems to work so that this message box doesn't appear and Word just goes ahead and opens the file like I want it to. Does anyone have any idea how I can stop this messagebox, do you think there is something wrong with the way I am opening Word, or perhaps is there something wrong with the way I am saving the word document??????

ns11-Sep-02 2:54

11-Sep-02 2:54

I have a bitmap resource in my MFC MDI app. I want to show the bmp in my third party image control which takes a pointer to the bitmap (header and all). How do I get a hold of the pointer to the bmp from the resource?
Thanks,
ns

Tomasz Sowinski11-Sep-02 2:56

Tomasz Sowinski

11-Sep-02 2:56

ns wrote:
I want to show the bmp in my third party image control which takes a pointer to the bitmap (header and all).

You mean the BITMAPINFOHEADER? Then use LoadImage with LR_CREATEDIBSECTION flag.

Tomasz Sowinski -- http://www.shooltz.com

To some its a six-pack, to me it's a support group

ns11-Sep-02 3:05

11-Sep-02 3:05

The image control expects a pointer to the start of the image: It gets it from disk with stuff like:

pFile = fopen(strFile, "rb");

    if(pFile == 0) // open failed ?
    {


        return 0;
    }


    fseek(pFile, 0, SEEK_END);

    int fileSize = ftell(pFile);

    fseek(pFile, 0, SEEK_SET);

    if(pImage ==NULL) return fileSize;


    fread(<code>pImage</code>, fileSize, 1, pFile);

    pImage[fileSize] = 0; // Put a 0 char at the end

    fclose(pFile);

What I want to extract from the bitmap resource is the pImage
Thanks so much,
ns

Tomasz Sowinski11-Sep-02 3:08

Tomasz Sowinski

11-Sep-02 3:08

So you'll need extra BITMAPFILEHEADER before DIB section. Sooner or later your image control will need a handle to DIB or DDB. Are you absolutely sure your control only loads .bmp files?

Tomasz Sowinski -- http://www.shooltz.com

To some its a six-pack, to me it's a support group

ns11-Sep-02 3:22

11-Sep-02 3:22

No, it takes jpegs and tiffs too but it uses the same strategy (fread) and processes the pre-DIB section information in itself. But I have a bmp to deal with. I've not read up on DIB, DDB etc, and am learning as I go along. So I guess (sorry if I'm being unbelievably dense), what I want is somehow to get the pImage out from the resource. Is there something like:

char* pImage = Somefunction(IDB_BMP1);

Any links would be great. Meanwhile I'm hurrying along with my background reading. I did find how to get (I hope it works) to get at the colortable:

HGlobal pBMP =  ::LoadResource(NULL, ::FindResource(NULL, MAKEINTRESOURCE(ID), RT_BITMAP));

PBITMAPINFO pBMInfo = (PBITMAPINFO) (pBMP + sizeof(BITMAPFILEHEADER));

int bitCount = 8;
int clrUsed = 0; // use all 2^8

if (pBMInfo->bmiHeader.biBitCount != bitCount ||
    pBMInfo->bmiHeader.biClrUsed  != clrUsed    ) // return with no changes if not right size
    return;


memcpy(pPalette, pBMInfo->bmiColors, (4*clrUsed));

I havent tried it out yet. Surely this pBMP is not what I'm looking for? I need a char* back, and not sure what to do with an HGlobal.