C / C++ / MFC

Re: Can't figure out Icons for CTreeCtrl

15-Aug-02 7:47

You'll have to set treectrl's image list first. Usually, you create a small bitmap containing all icons and load it with a call to CImageList::Create, but you can also create image list from icons.

Check the docs for CImageList, CTreeCtrl::SetImageList and CTreeCtrl::SetItemImage.

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

Never argue with an idiot, he'll bring you to his level and beat you with experience.

brianwelsch15-Aug-02 7:49

brianwelsch

15-Aug-02 7:49

Gracias!

BW
{insert witty/thought-provoking saying here}

Re: Can't figure out Icons for CTreeCtrl

Tomasz Sowinski15-Aug-02 7:52

MSDN example code generates hard-coded brekapoint.

15-Aug-02 7:52

De nada.

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

Never argue with an idiot, he'll bring you to his level and beat you with experience.

redeemer15-Aug-02 7:20

Re: MSDN example code generates hard-coded brekapoint.

15-Aug-02 7:20

I just tried to run some code i got directly from MSDN, non-modified, but at the acmFormatChoose line it gives me a message about a "breakpoint called from code at 0xXXXXXX", anyone have a clue what's wrong?

MMRESULT            mmr; 
ACMFORMATCHOOSE     afc; 
WAVEFORMATEX        wfxSelection; 
WAVEFORMATEX        wfxEnum; 
 
// Initialize the ACMFORMATCHOOSE members. 
memset(&afc, 0, sizeof(afc)); 
 
afc.cbStruct    = sizeof(afc); 
afc.fdwStyle    = 0L;               // no special style flags 
afc.hwndOwner   = ghWnd;             // hwnd of parent window 
afc.pwfx        = &wfxSelection;    // wfx to receive selection 
afc.cbwfx       = sizeof(wfxSelection); 
afc.pszTitle    = TEXT("16 Bit PCM Selection"); 
 
//  Request that all 16-bit PCM formats be displayed for the user 
//  to select from. 
memset(&wfxEnum, 0, sizeof(wfxEnum)); 

wfxEnum.wFormatTag = WAVE_FORMAT_PCM; 
wfxEnum.wBitsPerSample = 16;

afc.fdwEnum = ACM_FORMATENUMF_WFORMATTAG | ACM_FORMATENUMF_WBITSPERSAMPLE; 
afc.pwfxEnum = &wfxEnum; 

mmr = acmFormatChoose(&afc); 
if ((MMSYSERR_NOERROR != mmr) && (ACMERR_CANCELED != mmr)) 
{ 
    // There was a fatal error in bringing up the list 
    // dialog box (probably invalid input parameters). 
}

Thankyou in advance.

-Rune Svendsen

Tomasz Sowinski15-Aug-02 7:32

Re: MSDN example code generates hard-coded brekapoint.

15-Aug-02 7:32

What is wfxEnum?

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

Never argue with an idiot, he'll bring you to his level and beat you with experience.

redeemer15-Aug-02 9:07

Re: MSDN example code generates hard-coded brekapoint.

15-Aug-02 9:07

It's a WAVEFORMATEX structure used to restrict the formats showed, so only 16-bits per sample formats are showed in the list.

Tomasz Sowinski15-Aug-02 9:09

Re: MSDN example code generates hard-coded brekapoint.

15-Aug-02 9:09

Sorry - I haven't noticed the declaration and was sure that this is your callback. If you want, send me your sources, I'll try to compile/run.

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

Never argue with an idiot, he'll bring you to his level and beat you with experience.

redeemer15-Aug-02 9:15

Re: MSDN example code generates hard-coded brekapoint.

15-Aug-02 9:15

Sure, can i get your email address?

Tomasz Sowinski15-Aug-02 9:17

Re: MSDN example code generates hard-coded brekapoint.

15-Aug-02 9:17

Its in the notification messages sent to you by CP server.

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

Never argue with an idiot, he'll bring you to his level and beat you with experience.

redeemer15-Aug-02 9:22

How to open project files in my app, like in Visual Studio

15-Aug-02 9:22

Are they sent to my email or what? cause my email address is runes@hotpop.com

Jake Palmer15-Aug-02 6:59

Jake Palmer

15-Aug-02 6:59

My goal is similar to how Visual Studio opens Project and Workspace files: those file types are associated with VS, but they don't open up Views in the middle of the screen, they just fill in some information. I want to imitate this for opening Projects in my application. Unsure | :~

Are they using a doc/hidden view for this, or something tricky? WTF | :WTF:

Any suggestions are appreciated.
thanks,
Jake

Re: How to open project files in my app, like in Visual Studio

Roman Fadeyev15-Aug-02 7:08

Re: How to open project files in my app, like in Visual Studio

15-Aug-02 7:08

It's very simple

Override InitialUpdateFrame in your DocTemplate like that

void CProjectDocTemplate::InitialUpdateFrame(CFrameWnd* pFrame, CDocument* pDoc,BOOL bMakeVisible)
{
  __super :: InitialUpdateFrame(pFrame, pDoc, /*!!!!*/false);
}

Moreover, you can even write so:

void CProjectDocTemplate::InitialUpdateFrame(CFrameWnd* pFrame, CDocument* pDoc,BOOL bMakeVisible)
{
	pFrame->DestroyWindow();
}

just set m_bAutoDelete to false in CYourDocument class before (constructor is the best place for it).

Jake Palmer15-Aug-02 8:35

Jake Palmer

15-Aug-02 8:35

Sounds great, but I am just using CMultiDocTemplates in my code. I tried to make a subclass and override InitialUpdateFrame, but I get errors with the constructor, because CMultiDocTemplate has no default constructor. It doesn't seem like MFC wants DocTemplates to be subclassed, since we can't create them in the New Class wizard. So, how did you get that CProjectDocTemplate class?
thanks,
Jake

Re: How to open project files in my app, like in Visual Studio

Roman Fadeyev15-Aug-02 19:10

Re: How to open project files in my app, like in Visual Studio

15-Aug-02 19:10

Jake Palmer wrote:
Sounds great, but I am just using CMultiDocTemplates in my code.

It does not matter. Look:

class CProjectDocTemplate : public CMultiDocTemplate  
{
public:
    CProjectDocTemplate ( UINT nIDResource, CRuntimeClass* pDocClass, CRuntimeClass* pFrameClass, CRuntimeClass* pViewClass );
...
}

CProjectDocTemplate ::CProjectDocTemplate ( UINT nIDResource, CRuntimeClass* pDocClass, CRuntimeClass* pFrameClass, CRuntimeClass* pViewClass ):
    CMultiDocTemplate(nIDResource, pDocClass, pFrameClass, pViewClass)

{
}
....
// ------- CXXXApp.InitInstance() --------//
    AddDocTemplate( new CProjectDocTemplate(
        IDR_DOC_PROJECT,
        RUNTIME_CLASS(CProjectDoc),      // document class
        RUNTIME_CLASS(CMDIChildWnd),        // frame class
        RUNTIME_CLASS(CProjectView)     // view class
        ));

Where is the problem?

Jake Palmer16-Aug-02 9:46

Jake Palmer

16-Aug-02 9:46

I found a solution: returning FALSE in my document's OnOpenDocument. I get to deal with the file the user opened, but then I don't have to mess around with a doc or view hanging around. How come nobody told me about that? Cool | :cool:

Jake

CTreeCtrl Problem

Jonah15-Aug-02 6:49

Jonah

15-Aug-02 6:49

I am using a CTreeCtrl in my dialog based application, and I'm experiencing a really annoying problem with it. I should note that the "Check Boxes" style is being used with this tree control, and seems to be part of the problem.

When my dialog opens for the first time, I do not populate the tree control right away (the user does this later). However, a horizontal scroll bar shows up at the bottom of the tree control. From the looks of it, it would appear that an item with a *very* long name exists in the tree control. But I do a DeleteAllItems() during initialization, and the scroll bar still shows up!

I've noticed that if I manually insert some children, *AFTER* I do a DeleteAllItems(), the scroll bar does not show up (unless needed). But if I insert these children without first doing a DeleteAllItems(), the scroll bar shows up (needed or not). Could this be an indication that the TVI_ROOT item is starting with some garbage in it and needs to be properly initialized? If that's the case, how do I go about doing that?

I want the scroll bar to be available if needed, just not when the list is empty. Any ideas on how to fix this incredibly annoying problem are most welcome. Smile | :)

Thanks,
Jonah

Re: CTreeCtrl Problem

Shog⁹15-Aug-02 8:23

Shog⁹

15-Aug-02 8:23

I've never seen this problem. It could be the default checkbox image list is very wide or something; doesn't seem likely, but still, you could try setting a different state image list right off & see if that fixes the problem.

---

Shog⁹
If I could sleep forever, I could forget about everything...

Roman Fadeyev15-Aug-02 6:36

15-Aug-02 6:36

>>1. How am I going to change the color of view in SDI from white to
something like black?
Use SetClassLong to change background color (GCL_HBRBACKGROUND)

>>2. How am i going to add another view in SDI?..do i have to change everything to MDI?

Not at all. Just add new class, derived from CDocTemplate and create it's instance in CYourApp::InitInstance like that

CSingleDocTemplate* pDocTemplate;
	pDocTemplate = new CSingleDocTemplate(
		IDR_MAINFRAME,
		RUNTIME_CLASS(CTestDoc),
		RUNTIME_CLASS(CMainFrame),       // main SDI frame window
		RUNTIME_CLASS(CTestView));
	AddDocTemplate(pDocTemplate);

Zayax15-Aug-02 14:16

Zayax

15-Aug-02 14:16

Roman Fadeyev wrote:
Not at all. Just add new class, derived from CDocTemplate and create it's instance in CYourApp::InitInstance like that

Is this means doing something like this? (I've add a COutputView class derived from CView)

BOOL CPSMZayaxApp::InitInstance()<br />
{<br />
...<br />
	CSingleDocTemplate* pDocTemplate;<br />
	pDocTemplate = new CSingleDocTemplate(<br />
		IDR_MAINFRAME,<br />
		RUNTIME_CLASS(CPSMZayaxDoc),<br />
		RUNTIME_CLASS(CMainFrame),       // main SDI frame window<br />
		RUNTIME_CLASS(CPSMZayaxView));   //ORIGINAL VIEW	AddDocTemplate(pDocTemplate);<br />
<br />
	CSingleDocTemplate* pDocTemplate2;<br />
	pDocTemplate2 = new CSingleDocTemplate(<br />
		IDR_MAINFRAME,<br />
		RUNTIME_CLASS(CPSMZayaxDoc),<br />
		RUNTIME_CLASS(CMainFrame),       // main SDI frame window<br />
		RUNTIME_CLASS(COutputView));	 //ADDITIONAL VIEW<br />
	AddDocTemplate(pDocTemplate2);<br />
...<br />
}

When I execute the program, VC++ ask me to choose between the two view. How am I going to know which view is being displayed? How can I change from one view to another when the program was running? maybe this sound stupid but there was no minimize button to minimize one view and see the other like in the MDI Confused | :confused:

I wish to init this view when I click a button on a DialogBox. What should I do? Dead | X|

Newbies

Roger Allen15-Aug-02 6:34

Roger Allen

15-Aug-02 6:34

1. Override the views WM_ERASEBKGND message and paint with a black brush and then return TRUE.

2. I think you can do this without going to MDI. SDI means 1 document, not 1 view. Create a new view type like your first and add a document template for it. You should then be able to create instances of that view for your document as well. Although I don;t have all the code here for an example. Frown | :(

3. Not sure a width of 0 is valid. As far as I know 1 is the minimum pen width. You can probably get around the scaling issue by using the window mapping functions. Take a look at the MSDN for SetViewPortExt() and go from there.

4. Once again, you can set the display mapping mode to reflect this. See 3.

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.

Roman Fadeyev15-Aug-02 6:42

15-Aug-02 6:42

1. Override the views WM_ERASEBKGND message and paint with a black brush and then return TRUE
If you will use WM_ERASEBKGND, it can result to a blinking whilst Window resizing. It is better way to change background brush in WindowClass properties.

Tomasz Sowinski15-Aug-02 7:22

15-Aug-02 7:22

Roman Fadeyev wrote:
If you will use WM_ERASEBKGND, it can result to a blinking whilst Window resizing.

No, if you handle WM_ERASEBKGND yourselft, the window class brush is not used.

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

Never argue with an idiot, he'll bring you to his level and beat you with experience.

Roman Fadeyev15-Aug-02 8:02

15-Aug-02 8:02

Tomasz Sowinski wrote:
No, if you handle WM_ERASEBKGND yourselft, the window class brush is not used.

I beg pardon, I was mistaken

I tested example below, all OK. Hmmmm, strangely...

//Example of black window
BOOL CTestView::OnEraseBkgnd(CDC* pDC)
{
	CRect rect;
	pDC->GetClipBox(&rect);     // Erase the area needed
	pDC->PatBlt(rect.left, rect.top, rect.Width(), rect.Height(),
		BLACKNESS);
	return true;
}

Tomasz Sowinski15-Aug-02 8:07