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POam trying to create class to encapsulate toolbar but the background turns black. c++ win32api
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copied!<p>I created a simple class to hide the details of creating a toolbar in win32 API but I don't like the toolbars it is producing. (See image for clarification. I don't have reputation points so I have just posted a link) </p> <p><a href="http://i35.tinypic.com/1zmfeip.jpg" rel="nofollow noreferrer">http://i35.tinypic.com/1zmfeip.jpg</a></p> <p>I have no idea now the black background is coming into my application.<br> <b>Here is the class declaration in file CToolBar.h</b><br></p> <pre><code>#ifndef _CTOOLBAR_H #define _CTOOLBAR_H #include<windows.h> #include<commctrl.h> class CToolBar { public: CToolBar();//constructor ~CToolBar();//destructor void AddButton(int iconID, int command);//add Both a button, its icon and its command ID void Show();//display the toolbar void Initialise(HINSTANCE hInst, HWND hParent); protected: HINSTANCE m_hInst; HWND m_hParent; HWND m_hToolBar; HIMAGELIST m_hImageList; TBBUTTON m_Tbb[4]; //toolbar buttons int m_numberButtons; }; #endif </code></pre> <p><b>here is the implementation in file CToolBar.cpp</b> </p> <pre><code>//CToolBar.cpp #include "CToolBar.h" #include<windows.h> #include<commctrl.h> CToolBar::CToolBar()//the constructor { m_hImageList=ImageList_Create(32, 32, ILC_COLOR32, 0, 15);//returns NULL if the function fails //finish other initialisations InitCommonControls();//initialise commctrl.dll whatever.. or else your toolbar wont appear } void CToolBar::Initialise(HINSTANCE hInst, HWND hParent) { m_hInst=hInst; m_hParent=hParent; m_hToolBar=CreateWindowEx( WS_EX_PALETTEWINDOW , TOOLBARCLASSNAME, "", WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS |WS_VISIBLE|TBSTYLE_BUTTON | TBSTYLE_TOOLTIPS | CCS_ADJUSTABLE | CCS_TOP , 0, 0, 0, 0, m_hParent, NULL, m_hInst, 0); } CToolBar::~CToolBar()//destructor { ImageList_Destroy(m_hImageList); } void CToolBar::AddButton(int iconID, int command) { HICON hIcon = LoadIcon(m_hInst, MAKEINTRESOURCE(iconID)); ImageList_AddIcon(m_hImageList, hIcon); DeleteObject(hIcon); if(iconID!= -1)//-1 means the separator. The rest are mere buttons { m_Tbb[m_numberButtons].iBitmap =m_numberButtons; m_Tbb[m_numberButtons].idCommand = command; m_Tbb[m_numberButtons].fsState = TBSTATE_ENABLED; m_Tbb[m_numberButtons].fsStyle = TBSTYLE_BUTTON; m_Tbb[m_numberButtons].dwData = 0; m_Tbb[m_numberButtons].iString = 0; } else//ie if (iconID== -1) ; then display the separator. the command value is ignored { m_Tbb[m_numberButtons].iBitmap =-1; m_Tbb[m_numberButtons].idCommand = 0; m_Tbb[m_numberButtons].fsState = TBSTATE_ENABLED; m_Tbb[m_numberButtons].fsStyle = TBSTYLE_SEP; m_Tbb[m_numberButtons].dwData = 0; m_Tbb[m_numberButtons].iString = 0; } m_numberButtons++; } void CToolBar::Show() { SendMessage(m_hToolBar, TB_SETIMAGELIST , (WPARAM)0, (LPARAM)m_hImageList); SendMessage(m_hToolBar, TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);//message for backward //compatibility SendMessage(m_hToolBar, TB_ADDBUTTONS, m_numberButtons, (LPARAM)m_Tbb); SendMessage(m_hToolBar,WM_SIZE,0,0); ShowWindow(m_hToolBar, SW_SHOW); } </code></pre> <p><b>How i used the class</b><br> <em>in main.cpp, i created a global instance of the class.</em> </p> <pre><code>CToolBar myToolBar; </code></pre> <p><em>in the callback procedure, under WM_CREATE, I used some member functions.</em> </p> <pre><code>case WM_CREATE: myToolBar.Initialise(g_hInst,hwnd); myToolBar.AddButton(IDI_OPEN, ID_OPEN); myToolBar.AddButton(IDI_MAIN,ID_OPEN);//Separator button myToolBar.AddButton(IDI_CLOSE, ID_CLOSE); myToolBar.AddButton(IDI_CLOSEALL, ID_CLOSE); myToolBar.Show(); break; </code></pre> <p>That's about it.</p>

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