Error when I try to load toolbar

Question

1.00/5 (2 votes)

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I inserted a bitmap in toolbar and in this code:

C++

m_toolbar.Create(this);
m_toolbar.LoadToolBar(IDR_TOOLBAR1);
RepositionBars(AFX_IDW_CONTROLBAR_FIRST, AFX_IDW_CONTROLBAR_LAST, 0);

I have a crash in m_toolbar.LoadToolBar(IDR_TOOLBAR1);

Code of resource:

IDR_TOOLBAR1            BITMAP                  "res\\toolbar1.bmp"

IDB_BITMAP1             BITMAP                  "res\\scarica_pezzo.bmp"

IDB_BITMAP2             BITMAP                  "res\\bitmap2.bmp"

What I have tried:

Before that, I tried to insert bitmap I didn't have this problem... I improved my question.

Posted 25-Oct-23 22:09pm

Member 14594285

Updated 27-Oct-23 5:31am

Deeksha Shenoy

v3

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Richard MacCutchan 26-Oct-23 4:19am

Without more information it is impossible to guess what went wrong. Please show the IDR_TOOLBAR1 resource statements. Also, I do not see where you load the bitmap into the toolbar.

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Richard MacCutchan · Answer 1 · 2023-10-25T23:20:00

Solution 1

You are trying to load a bitmap as a ToolBar resource. A toolbar resource looks like:

C++

IDR_MAINFRAME TOOLBAR DISCARDABLE  16, 15
BEGIN
    BUTTON      ID_FILE_NEW
    BUTTON      ID_FILE_OPEN
    BUTTON      ID_FILE_SAVE
    SEPARATOR
    BUTTON      ID_ENTRY_NEW
    BUTTON      ID_ENTRY_EDIT
    BUTTON      ID_ENTRY_DELETE
    SEPARATOR
    BUTTON      ID_APP_ABOUT
END

You call LoadToolBar to load this resource, and then call CToolBar Class : LoadBitmap | Microsoft Learn[^] to load the matching bitmap. As always you should make use of the documentation to guide you.

Posted 25-Oct-23 23:20pm

Richard MacCutchan

Comments

Member 14594285 26-Oct-23 5:26am

I tried this:
m_toolbar.Create(this);
m_toolbar.LoadBitmap(IDR_TOOLBAR1);

but it's the same thing

Richard MacCutchan 26-Oct-23 6:53am

You must load the Toolbar resource first, and the number of elements in the resource must match the number of button images in the bitmap.

Member 14594285 26-Oct-23 8:22am

I tried this:
m_toolbar.Create(this);
m_toolbar.LoadBitmap(IDB_BITMAP1);
m_toolbar.LoadToolBar(IDR_TOOLBAR1);

RepositionBars(AFX_IDW_CONTROLBAR_FIRST, AFX_IDW_CONTROLBAR_LAST, 0);

Richard MacCutchan 26-Oct-23 9:20am

Yes, and also still trying to load a bitmap instead of a toolbar resource.