调试时断言调试失败 [英] Debug assertion failed occurs while debugging

问题描述

，，
虽然编译即时通讯没有收到任何错误，但调试时却出现调试断言失败"的消息...我不知道如何解决它，,,请帮助我

Hi,,,
while compiling im not getting any error but while debugging "debugging assertion failed" is coming ... i do no how to solve it ,,, pls help me

CButton::~CButton()
{
    DestroyWindow();
}

// Helper for radio buttons
int CWnd::GetCheckedRadioButton(int nIDFirstButton, int nIDLastButton)
{
    for (int nID = nIDFirstButton; nID <= nIDLastButton; nID++)
    {
        if (IsDlgButtonChecked(nID))
            return nID; // id that matched
    }
    return 0; // invalid ID
}

// Derived class is responsible for implementing all of these handlers
//   for owner/self draw controls
void CButton::DrawItem(LPDRAWITEMSTRUCT)
{
the prob occurs here
const CString& CString::operator=(LPCTSTR lpsz)
{
ASSERT(lpsz == NULL || AfxIsValidString(lpsz));
 return TRUE;
}



BOOL CButton::OnChildNotify(UINT message, WPARAM wParam, LPARAM lParam,
    LRESULT* pResult)




<pre lang="cs">this is my call stack ,, i dono whats the problem.. if im silly ,, please forgive me ,,, pls guide me




CButton::DrawItem(tagDRAWITEMSTRUCT * 0x0012f6fc) line 72 + 25 bytes

CButton::OnChildNotify(unsigned int 43, unsigned int 1002, long 1242876, long * 0x00000000) line 84

CWnd::SendChildNotifyLastMsg(long * 0x00000000) line 2683

CWnd::ReflectLastMsg(HWND__ * 0x00840a22, long * 0x00000000) line 2721

CWnd::OnDrawItem(int 1002, tagDRAWITEMSTRUCT * 0x0012f6fc) line 1156 + 14 bytes

CWnd::OnWndMsg(unsigned int 43, unsigned int 1002, long 1242876, long * 0x0012f51c) line 1930

CWnd::WindowProc(unsigned int 43, unsigned int 1002, long 1242876) line 1585 + 30 bytes

AfxCallWndProc(CWnd * 0x0012fd98 {CComboTestDlg hWnd=???}, HWND__ * 0x001202ec, unsigned int 43, unsigned int 1002, long 1242876) line 215 + 26 bytes

AfxWndProc(HWND__ * 0x001202ec, unsigned int 43, unsigned int 1002, long 1242876) line 368

AfxWndProcBase(HWND__ * 0x001202ec, unsigned int 43, unsigned int 1002, long 1242876) line 220 + 21 bytes

USER32! 77d48709()

USER32! 77d4d297()

USER32! 77d4b743()

USER32! 77d4b7ab()

USER32! 77d605d0()

USER32! 77d761c6()

USER32! 77d5922c()

USER32! 77d5887a()

USER32! 77d48709()

USER32! 77d487eb()

USER32! 77d4c00e()

USER32! 77d4e366()

CWnd::DefWindowProcA(unsigned int 15, unsigned int 0, long 0) line 1000 + 32 bytes

CWnd::WindowProc(unsigned int 15, unsigned int 0, long 0) line 1586 + 26 bytes

AfxCallWndProc(CWnd * 0x0012fe38 {CButton hWnd=0x00840a22}, HWND__ * 0x00840a22, unsigned int 15, unsigned int 0, long 0) line 215 + 26 bytes

AfxWndProc(HWND__ * 0x00840a22, unsigned int 15, unsigned int 0, long 0) line 368

AfxWndProcBase(HWND__ * 0x00840a22, unsigned int 15, unsigned int 0, long 0) line 220 + 21 bytes

USER32! 77d48709()

USER32! 77d487eb()

USER32! 77d4b368()

USER32! 77d4b3b4()

NTDLL! 7c90e473()

USER32! 77d62719()

USER32! 77d6ec20()

USER32! 77d5fd5c()

CWnd::CreateDlgIndirect(const DLGTEMPLATE * 0x00419890, CWnd * 0x00000000 {CWnd hWnd=???}, HINSTANCE__ * 0x00400000) line 327 + 36 bytes

CDialog::DoModal() line 528 + 32 bytes

CComboTestApp::InitInstance() line 58 + 11 bytes

AfxWinMain(HINSTANCE__ * 0x00400000, HINSTANCE__ * 0x00000000, char * 0x00141eff, int 1) line 39 + 11 bytes

WinMain(HINSTANCE__ * 0x00400000, HINSTANCE__ * 0x00000000, char * 0x00141eff, int 1) line 30

WinMainCRTStartup() line 330 + 54 bytes

KERNEL32! 7c816fe7()

感谢

thanks

推荐答案

您好Degorio，

DrawItem()中的问题，当所有者绘制的按钮的外观已更改时，框架会调用此函数

为什么要使用CString :: operator =(LpCSTR Lpsz)，如果要设置按钮的标题，请使用此

Hi Degorio,

The Problem in your DrawItem(), This function is Called by the framework when a visual aspect of an owner-drawn button has changed

Why are you using CString::operator=(LpCSTR Lpsz), If you want to set caption of button then use this

::DrawText(lpDrawItemStruct->hDC, strText, strText.GetLength(), 
      &lpDrawItemStruct->rcItem, DT_SINGLELINE|DT_VCENTER|DT_CENTER);

检查此http://msdn.microsoft.com/en-us/library/y0k9f0a4(VS.80).aspx

Check this http://msdn.microsoft.com/en-us/library/y0k9f0a4(VS.80).aspx

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