CToolBarCtrl::AddBitmap() gives me trouble in afxcrit.cpp

Code:

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m_wndToolBar.Create(this);
m_wndToolBar.GetToolBarCtrl().AddBitmap(10,IDB_GRIDTB);

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where IDB_GRIDTB is a bitmap resource containing 10 buttons of 16x16. The bitmap is 160x16. I tried to SetBitmapSize() but it didn't help.

The 'AddBitmap' line gives me the following error:

Code:

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Unhandled exception at 0x5d0a7f36 in Tester.exe: 0xC0000005: Access violation reading location 0x0383fffc.

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The crash occurs somewhere at the end of this function:

Code:

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void AFXAPI AfxUnlockGlobals(int nLockType)
{
        ASSERT(_afxCriticalInit);
        ASSERT((UINT)nLockType < CRIT_MAX);

        // unlock specific resource
        ASSERT(_afxLockInit[nLockType]);
#ifdef _DEBUG
        ASSERT(--_afxResourceLocked[nLockType] >= 0);
#endif
        LeaveCriticalSection(&_afxResourceLock[nLockType]);
}

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in afxcrit.cpp that is.

edit: I also just saw that m_wndToolBar.GetToolBarCtrl().AddBitmap(9,IDR_MAINFRAME); works. Maybe the problem is that my bitmap has 24bit colours?


timv

Quote:

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Originally Posted by timv

Code:

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m_wndToolBar.Create(this);
m_wndToolBar.GetToolBarCtrl().AddBitmap(10,IDB_GRIDTB);

---

where IDB_GRIDTB is a bitmap resource containing 10 buttons of 16x16. The bitmap is 160x16. I tried to SetBitmapSize() but it didn't help.
.......
I also just saw that m_wndToolBar.GetToolBarCtrl().AddBitmap(9,IDR_MAINFRAME); works. timv

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Well, what will happen if you'd try:

Code:

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m_wndToolBar.GetToolBarCtrl().AddBitmap(9,IDB_GRIDTB);

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same error.

Does someone knows what can be the origin of this error? Can it have something to do with the fact the bitmap has 24bit colors? Or perhaps there is still something wrong with the bitmap's width/height (although it seems ok)? Or something else?

Also,

Quote:

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nBitmapID
Resource identifier of the bitmap that contains the button image or images to add.

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This would be no problem to use a bitmap resource for it? Or does it have to be a toolbar resource (i don't think so)?

Greets
timv

I can see now that the reason the error occurs is because we are using true color bitmaps (24 bpp). If I make it a 8 bpp then there is no problem, but some color loss. Does someone know a solution for this that allows 16/24/32 bpp bitmaps?
I tried HiColorToolbar project I found on codeguru, but it gives me empty (they look like completely transparent) images.

tim