C / C++ / MFC

5-Oct-07 6:02

Howdy guys, just a quick question about a small problem I am having in a little chat application I made for the sake of learning.

Currently I want my app to minimize to my tray displaying its icon. I want the window to be hidden completly, I dont want it to appear minimized in the taskbar. If the user wants to open the app he can double click the icon in the tray. I got the animation working, my icon loads in the try, however I cannot hide the window. It minimizes to the task bar below making it appear "miniized". It should be hidden no?

Currently I am using this command I assumed it would hide everything. Any obvious thoughts come to mind on what I might be doing wrong?
ShowWindow(m_hWnd, SW_HIDE);

If you want I can display more code just let me know!

Thanks Alot!

Cliff

IMNOOPR5-Oct-07 6:22

IMNOOPR

5-Oct-07 6:22

See http://www.codeproject.com/dialog/hidetaskbar.asp

IMNOOPR

Beaon5-Oct-07 7:14

5-Oct-07 7:14

OK going to look into this more. Seems like alot of work just to hide the window out of the taskbar.

Mark Salsbery5-Oct-07 7:48

Mark Salsbery

5-Oct-07 7:48

Are you sure you're passing the right HWND to ShowWindow()?

What's style and extended styles does the app's main window have?

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Beaon5-Oct-07 8:06

5-Oct-07 8:06

Yea I have m_hWnd as my main window. I'm passing these styles apon its creation.

WS_OVERLAPPEDWINDOW|WS_VISIBLE
This gets passed into a win32 wrapper class constructor and is saved to m_dwStyles;

Here is my extended style

WS_EX_CLIENTEDGE

m_hWnd = CreateWindowEx (WS_EX_CLIENTEDGE,<br />
                         m_pClassName, m_pWindowTitle,<br />
                         m_dwStyles,<br />
                         m_pRect->left,<br />
                         m_pRect->top,<br />
                         m_pRect->right-m_pRect->left,<br />
                         m_pRect->bottom-m_pRect->top,<br />
                         NULL, <br />
                         m_hMenu,<br />
                         m_hInstance, <br />
                         (void *)this);

Mark you always seem to save me! Hope you have some ideas for this one. Thank you sir. =)

Cliff

Mark Salsbery5-Oct-07 8:11

Mark Salsbery

5-Oct-07 8:11

hmm... I use the same style and, like DavidCrow (except in a different order),
I just do

Shell_NotifyIcon(...)
ShowWindow(SW_HIDE)

Any other window stuff going on?

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Beaon5-Oct-07 8:31

5-Oct-07 8:31

Just minimizing to the tray, some tooltips, buttons. All standard stuff really. I've been following the stromcode tutorial but pulling what I want in my app as apposed to his portscanner.

I had wanted to have the client drop to the tray and post a balloon when someone messags you. My tray icon works but the apps tays in the taskbar as minimized.

Could it be my animation?

Heres everything I have in the minimize function

void ChatApp::miniMizeTray(const int icon)<br />
{<br />
	//We are checking to see if the user<br />
	//has turned off animations<br />
	ANIMATIONINFO anii;<br />
	anii.cbSize = sizeof(anii);<br />
	SystemParametersInfo(SPI_GETANIMATION, sizeof(anii), &anii, 0);<br />
<br />
	RECT desktopRect, thisWindowRect;<br />
	GetTrayWndRect(&desktopRect);<br />
	GetWindowRect(m_hWnd, &thisWindowRect);<br />
<br />
	if (anii.iMinAnimate)<br />
	{<br />
		//Animate Command<br />
		DrawAnimatedRects(m_hWnd, IDANI_CAPTION, &thisWindowRect, &desktopRect);<br />
	}<br />
<br />
	//Hide the Window completly<br />
	ShowWindow(m_hWnd, SW_HIDE);<br />
<br />
	//Show the notification icon<br />
	NOTIFYICONDATA nid;<br />
	ZeroMemory(&nid, sizeof(nid));<br />
	nid.cbSize				= sizeof(nid);<br />
	nid.hWnd				= m_hWnd;<br />
	nid.uID					= 0;<br />
	nid.uFlags				= NIF_ICON | NIF_MESSAGE | NIF_TIP | NIF_INFO;<br />
	nid.uCallbackMessage	= WM_USER;<br />
	nid.hIcon				= LoadIcon(m_hInstance, MAKEINTRESOURCE(icon));<br />
	nid.uTimeout			= 1000;<br />
	nid.dwInfoFlags			= NIIF_INFO;<br />
	lstrcpy(nid.szTip, "Double-Click To Maximize.");<br />
	lstrcpy(nid.szInfo, "ChatApp has been minimized to the system tray.\nClick this icon to restore the application.");<br />
	lstrcpy(nid.szInfoTitle, "Chat App");<br />
<br />
	Shell_NotifyIcon(NIM_ADD, &nid);<br />
}

If I dont get back to you today I will definately on Monday. I'm going to make another run through the code and see if I find anything. Ill come back in the afternoon to see if you guys have any ideas. Thanks for the help!

Cliff

Mark Salsbery5-Oct-07 9:50

Mark Salsbery

5-Oct-07 9:50

Just for the heck of it, maybe try Shell_NotifyIcon() without the
NIF_INFO flag. Same result?

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Beaon5-Oct-07 10:57

5-Oct-07 10:57

No, same thing unfortunately. Maybe I can come up with something this weekend. Ill take a peak. Quiet an odd one, I know I am missing something somewhere.

Thanks again!

cliff

David Crow6-Oct-07 3:35

David Crow

6-Oct-07 3:35

I would suggest creating a test application that does nothing but minimize itself to the icon notification area.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Beaon7-Oct-07 8:36

Re: ShowWindow Command Problems [modified]

7-Oct-07 8:36

Thats a great idea. Gunna go do it now. I'll just make a simple window with a edit box inside. We will see how it goes... I'll post tommarow!

Thanks David.

Cliff

Beaon8-Oct-07 3:31

8-Oct-07 3:31

Ok guys I solved the problem in my WinProc Func.

Here is what I have.

case WM_SYSCOMMAND:<br />
		switch (wParam)	<br />
		{<br />
		case SC_MINIMIZE:<br />
			if (!m_bInTray)<br />
			{<br />
				miniMizeTray(IDI_ICON1);<br />
				m_bInTray = true;<br />
			}<br />
                        break;<br />
		}<br />
		DefWindowProc(m_hWnd, uMsg, wParam, lParam);<br />
		if (m_bInTray == true)<br />
		{<br />
			ShowWindow(m_hWnd, SW_HIDE);<br />
		}<br />
		break;

Originally I did not have the ShowWindow command here, for kicks I added it before the DefWindowProc command, then I added it after. As soon as I added it after it worked correctly. Now due to the way I have my app setup, I am using a bool to let the app know whether or not it's in the tray, I had to setup a simple if statement for the same reason.

Any ideas on why I have to place this after the DefWindowProc command?

Cliff

-- modified at 9:43 Monday 8th October, 2007
Just to add, I figured it out making another smaller app with nothing in it accept an edit window and the same minimize functions. Thanks for that advise David! =)

Cliff

David Crow5-Oct-07 8:02

David Crow

5-Oct-07 8:02

I just wrote a similar "tray" applicaton. At the appropriate time, I just called ShowWindow() (followed by Shell_NotifyIcon()).

Beaon wrote:
ShowWindow(m_hWnd, SW_HIDE);

That's all you need, assuming that m_hWnd is valid and the correct window handle.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Beaon5-Oct-07 8:20

Problems with CreateDesktop

5-Oct-07 8:20

Yea I am running that command right after ShowWindow, makes no difference.

It sounds like I am callig the wrong HWND handle, but my main window is m_hWnd, everything else is a child of that. I just breifly double checked all my other HWND handles and found them all WS_CHILD. with m_hWnd as the parent accept the tooltips. My tooltips are children to the window in which they tip. I thought thats how I was suppose to do it but I dont think that will make a difference here.

Any thoughts?

Anti-Grain question

Richard Blythe5-Oct-07 4:29

Richard Blythe

5-Oct-07 4:29

Is anyone of you familiar with Anti-Grain Geometry? I just stumbled across it this week and would love to use it in my program but I can't figure out HOW to use it!
I am trying to use the C# wrapper created by the guys at CreativeDocs.Net --> http://www.creativedocs.net/
I just need someone to quickly explain how to replace gdi with agg.

Just so you know, I have exhuasted google trying to find some kind of documentation. Frown | :(

Any pointers would be greatly appreciated!

Richard

may your code be error free.
(okay, maybe two lines.)

Re: Anti-Grain question

Maximilien5-Oct-07 5:35

Maximilien

5-Oct-07 5:35

From what I can see, it will generated a bitmap and you will need to BitBlt back the bitmap in the current DC in the OnPaint.

have a look at : this page ( even if it's for eMbedded VC 4.0, it's a good start)[^]

Maximilien Lincourt
Your Head A Splode - Strong Bad

GauranG Shah5-Oct-07 4:17

GauranG Shah

5-Oct-07 4:17

Hello Friends,

I have created the New Desktop. And I am able to Switch to and from new Desktop to Default Desktop and Default Desktop to New desktop (Thnx to nitin3) .

But There is one Problem I am facing when I am switching to new Desktop.
I am not able to open the Task Manager in new desktop Frown | :(

If anybody knows how to solve the problem or why this is happening ? if anybody knows please tell me. It will be great help to me.

The other things I want to do is to personalize the ICONS and Wallpaper for new Desktop. i.e. if somebody changes the wallpaper in new desktop it should not be reflected in default desktop.

I dont know whether it is possible or not ??. If Some body have anu idea or suggation please tell me.

Thanx in Advance

[ Screen Capture ][ Tool Tip ]

VC8 and stingray DLL issue

OmniX5-Oct-07 3:42

OmniX

5-Oct-07 3:42

Alright, this is not code oriented and so I'll make it brieft:

Sorry don't know how to add code in this forum yet (rather new)

A class like this:

#ifndef VXT_SIMPLE_BUTTON_SPEC<br />
#ifdef  VXT_UIUTILS_DLL<br />
#define VXT_SIMPLE_BUTTON_SPEC __declspec(dllexport)<br />
#else<br />
#define VXT_SIMPLE_BUTTON_SPEC __declspec(dllimport)<br />
#endif<br />
#endif<br />
<br />
class  VXT_SIMPLE_BUTTON_SPEC vxtUISimpleButton: public CGXStatic

the inherited class is FROM stingray and is now using dll interface compared to previous release like so:

#ifdef _GXDLL<br />
	#ifdef _GXDLL_IMPL<br />
		#define GRID_API __declspec( dllexport )<br />
//		#pragma message("GRID_API: dllexport")<br />
	#else<br />
		#define GRID_API __declspec( dllimport ) <br />
//		#pragma message("GRID_API: dllimport")<br />
	#endif<br />
#else //  !_GXDLL<br />
	#define GRID_API<br />
#endif<br />
<br />
<br />
class CGXStatic : public CGXControl<br />
{<br />
	DECLARE_CONTROL(CGXStatic)<br />
<br />
// Construction<br />
public:<br />
	// Constructor & Destructor<br />
	GRID_API CGXStatic(CGXGridCore* pGrid);<br />
<br />
	GRID_API virtual CRect GetCellRect(ROWCOL nRow, ROWCOL nCol, LPRECT rectItem = NULL, const CGXStyle* pStyle = NULL);<br />
		// compute the interior rectangle for the text<br />
		// without buttons and borders<br />
	GRID_API virtual CSize AddBorders(CSize size, const CGXStyle& style);  // counterpart to GetCellRect<br />
<br />
	GRID_API virtual CSize CalcSize(CDC* pDC, ROWCOL nRow, ROWCOL nCol, const CGXStyle& style, const CGXStyle* pStandardStyle, BOOL bVert);<br />
<br />
	GRID_API virtual BOOL CanFloatCell(ROWCOL nRow, ROWCOL nCol, const CGXStyle& style, BOOL bFloatOrFlood);<br />
<br />
	GRID_API virtual void Draw(CDC* pDC, CRect rect, ROWCOL nRow, ROWCOL nCol, const CGXStyle& style, const CGXStyle* pStandardStyle);<br />
<br />
	// cells tips enable<br />
	GRID_API void ImplementCellTips();<br />
};<br />

Now this returns:
error C2487: member of dll interface class may not be declared with dll interface
When using the macro:

#define DECLARE_CONTROL(class_name) \<br />
protected: \<br />
	GRID_API static CGXControlClass* PASCAL _GetControlBaseClass(); \<br />
public: \<br />
	static GX_DATA CGXControlClass ctrl##class_name; \<br />
	GRID_API virtual CGXControlClass* GetControlClass() const; \<br />
<br />
#define IMPLEMENT_CONTROL(class_name, base_class_name) \<br />
	CGXControlClass* PASCAL class_name::_GetControlBaseClass() \<br />
		{ return CONTROL_CLASS(base_class_name); } \<br />
	GX_DATADEF CGXControlClass class_name::ctrl##class_name = { \<br />
		#class_name, &class_name::_GetControlBaseClass }; \<br />
	CGXControlClass* class_name::GetControlClass() const \<br />
		{ return &class_name::ctrl##class_name; } \<br />
<br />
DECLARE_CONTROL(vxtUISimpleButton)

So I tried not using dllimport ON the class but instead on every functions

Which returned this:
warning C4273 : inconsistent dll linkage

on the macro:

<br />
#define IMPLEMENT_CONTROL(class_name, base_class_name) \<br />
	CGXControlClass* PASCAL class_name::_GetControlBaseClass() \<br />
		{ return CONTROL_CLASS(base_class_name); } \<br />
	GX_DATADEF CGXControlClass class_name::ctrl##class_name = { \<br />
		#class_name, &class_name::_GetControlBaseClass }; \<br />
	CGXControlClass* class_name::GetControlClass() const \<br />
		{ return &class_name::ctrl##class_name; } \<br />
<br />
IMPLEMENT_CONTROL(vxtUISimpleButton, CGXStatic)

Which is present because (I think) that we defined this function:

virtual VXT_SIMPLE_BUTTON_SPEC vxtVoid Draw(CDC* pDC, CRect rect, ROWCOL nRow, ROWCOL nCol, const CGXStyle& style, const CGXStyle* pStandardStyle);

and the stingray class defined it this way:

GRID_API virtual void Draw(CDC* pDC, CRect rect, ROWCOL nRow, ROWCOL nCol, const CGXStyle& style, const CGXStyle* pStandardStyle);

Both are on dllImport

Any suggestion on how to "cleanly" remove the error and warning?

Something about CxImage class

Jane1315-Oct-07 2:52

Jane131

5-Oct-07 2:52

I want to know how can i get the file of '.dll' of CxImage?when i load the CxImage,i cannot find the file.Thank you!
My Email is xhj131@163.com

jane

Hamid_RT5-Oct-07 3:01

Hamid_RT

5-Oct-07 3:01

Did you ask on that article?

Jane1316-Oct-07 1:39

Jane131

6-Oct-07 1:39

Yes,i asked about the CxImage.Do you know something about it?If you do,i hope you can help me.
I want to change the format of the image from ".jpg" to ".bmp"!
Thank you

Jane131

Hamid_RT6-Oct-07 19:24

Hamid_RT

6-Oct-07 19:24

If you want to convert jpg to bmp why you dont use of CImage class?

Jane13119-Oct-07 16:05

Jane131

19-Oct-07 16:05

I have considered about CImage class,but i can not find the
the file of ".dll"and ".lib".Do you know how can i get them?
Thank you!