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I tried to load an image in treeView but it isn't loaded..
C++
HTREEITEM hItem;
CBitmap m_Bitmap1, m_Bitmap2, m_Bitmap3, m_Bitmap4;

m_Bitmap1.LoadBitmap(IDB_BITMAP2);
//m_Bitmap2.LoadBitmap(IDB_BITMAP9);

CImageList* m_ImageListTree;
m_ImageListTree = new CImageList;

m_ImageListTree->Create(16, 16, ILC_COLOR32, 1, 1);
m_ImageListTree->Add(&m_Bitmap1, RGB(255, 0, 255));
m_treeCtrl.SetImageList(m_ImageListTree, LVSIL_SMALL);

hItem = m_treeCtrl.InsertItem(aDir[i],i,i, TVI_ROOT);


What I have tried:

I have an image BMP in resources, but it isn't loaded.
Posted
Updated 25-Jan-22 9:38am
v2
Comments
Richard MacCutchan 25-Jan-22 12:18pm    
What is aDir and what is the value of i?

You better use the debugger to see whether your m_Bitmap1 has loaded the image and check the return codes. If I remember correctly this MFC code is very picky in image format and size.

Are you getting an hItem back?
 
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Comments
Member 14594285 25-Jan-22 12:11pm    
image is 8 bit and dimension 225 x 225
KarstenK 26-Jan-22 13:08pm    
the picture maybe to big for the small item. Check the return codes!!!
I have modified in code. try the following:
HTREEITEM hItem;
CBitmap m_Bitmap1, m_Bitmap2, m_Bitmap3, m_Bitmap4;

m_Bitmap1.LoadBitmap(IDB_BITMAP1);

CImageList* m_ImageListTree;
m_ImageListTree = new CImageList;
m_ImageListTree->Create(IDB_BITMAP1, 16, 16, RGB(255, 255, 255));
m_ImageListTree->Add(&m_Bitmap1, RGB(255, 0, 255));
m_treeCtrl.SetImageList(m_ImageListTree, LVSIL_SMALL);
 
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