How can I use LoadBitmap() for loading a bitmap no button

Saday Sarkar

I am new in vc++ world. I want to give a bit map on a button . I'm using CBitmapButton::LoadBitmap(); but it is not loaded.Giving error is:"Failed to load bitmap for normal image." Can any one help by giving proper method to do that. Thank to all THE CODE PROJECT users.

Owner drawn

CBitmapButton myButton;

// Create the bitmap button (must include the BS_OWNERDRAW style).
myButton.Create(NULL, WS_CHILD|WS_VISIBLE|BS_OWNERDRAW,
CRect(10,10,100,100), pParentWnd, 1);

// Load the bitmaps for this button.
myButton.LoadBitmaps(IDB_UP, IDB_DOWN, IDB_FOCUS, IDB_DISABLE);

You must replace IDB_UP, IDB_DOWN, IDB_FOCUS, IDB_DISABLE with your own bitmap id's that you have imported or added to the project.

Jesus Loves You and Me :)

--Owner Drawn --Nothing special --Defeat is temporary but surrender is permanent --Never say quits --Jesus is Lord

Saday Sarkar

But if I replace the parameter "pParentWnd" by "this" the button is not showing. To Show that what I have to do? ------------------------------------------------------------------ CBitmapButton myButton; myButton.Create(NULL, WS_CHILD|WS_VISIBLE|BS_OWNERDRAW, CRect(10,10,100,100), this, 1); // Load the bitmaps for this button. myButton.LoadBitmaps(IDB_UPU, IDB_DOWND, IDB_FOCUSF, IDB_DISABLEX); ------------------------------------------------------------------ plz help. Thank u. -- modified at 4:10 Thursday 29th December, 2005

Owner drawn

Are you trying this in a dialog. Do you already have a button. If so then you have to add a member variable for that button with type as CBitmapButton and then use AutoLoad(). And don't forget to set the ownerdrawn property to true. m_YourBmpButton.AutoLoad(IDC_MYBUTTON, this); and then set the images. Perhaps you may not have to call AutoLoad(...) if you are adding a member variable.

Jesus Loves You and Me :)

--Owner Drawn --Nothing special --Defeat is temporary but surrender is permanent --Never say quits --Jesus is Lord

Identity Undisclosed

The problem is that since u r creating button in a function, so it will be allocated on stack. and as the function is returned back ,where u are creating a button, all items are pop out of the stack. So ur button will no longer exists. Either u make it(myButton) member of class or Create the CBitmapButton object on Heap. The code for creating on Heap is: CBitmapButton* myButton = new CBitmapButton; myButton->Create(NULL, WS_CHILD|WS_VISIBLE|BS_OWNERDRAW, CRect(10,10,100,100), this, 1); // Load the bitmaps for this button. myButton->LoadBitmaps(IDB_UPU, IDB_DOWND, IDB_FOCUSF, IDB_DISABLEX) Plus u must call delete in ur destructor or the entry after the button is not required. It hope it helps :P -- modified at 4:33 Thursday 29th December, 2005

Saday Sarkar

Still now I'm not geting the result. PLz help. I am using dialog base. I take a button. Then create member m_button of the button. ------------------------------------------------------------------ CBitmapButton m_button;//at constractor ------------------------------------------------------------------- DDX_Control(pDX, IDC_BUTTON1, m_button);(at DoDataExchange) ------------------------------------------------------------------- I've import bitmaps mamed IDB_UP, IDB_DOWN, IDB_FOCUS, IDB_DISABLE then using .... ------------------------------------------------------------------- m_button.LoadBitmaps("IDB_UPU", "IDB_DOWND", "IDB_FOCUSF", "IDB_DISABLEX"); ----------------------------------------------------------------------- Q1> How can i give the property "WS_CHILD|WS_VISIBLE|BS_OWNERDRAW". Q2> If i use Autoload() then how i can give names of Bitmaps? Very Very thanks.

Saday Sarkar

Ok I've got . Very very Thanks

Owner drawn

Saday Sarkar wrote:

CBitmapButton m_button;//at constractor

:omg: What's this. You declared m_button in the constructor. You must do it in the header file. using AutoLoad is easy. But I don't think you will need it. But any way here it is. m_button.AutoLoad(IDC_BUTTON1, this/*parent window*/); m_button.SetBitmaps(..........) This should work. Make sure that the button in the dialog has the ownerdrawn property set to TRUE

Jesus Loves You and Me :)

--Owner Drawn --Nothing special --Defeat is temporary but surrender is permanent --Never say quits --Jesus is Lord

Saday Sarkar

Yes I've got. I've not do"the button in the dialog has the ownerdrawn property set to TRUE " Now ok. Very Very Thanks.

BlackDice

I think this way is easier:

//button must have 'Bitmap' property set to true
CButton* pButton = (CButton*)GetDlgItem(IDC_VIEWSCAPS);
ASSERT(pButton);
if(pButton)
{
	VERIFY(m_bmpBSBitmap.LoadBitmap(IDB_ADD));
	HBITMAP hbmp = (HBITMAP)m_bmpBSBitmap.GetSafeHandle();
	pButton->SetBitmap(hbmp);
}

IDB_ADD is replaced with bitmap resource id IDC_VIEWSCAPS is replaced with button resource id make sure you set 'bitmap' property for the button to true My articles BlackDice