将文本附加到用完房间的编辑控件?

时间:2012-03-31 06:28:36

标签: c++ c windows

所以这是我的问题,它可以正常工作,直到达到一定数量的数据。我无法显示整个html文件,例如在它被切断的窗口中大约1MB。

窗口:

case WM_CREATE:

    hEdit = CreateWindowEx(WS_EX_CLIENTEDGE, "EDIT", "", 
        WS_CHILD | WS_VISIBLE | WS_VSCROLL | ES_READONLY | WS_HSCROLL | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL, 
        0, 0, 100, 100, hWnd, (HMENU)IDC_MAIN_EDIT, GetModuleHandle(NULL), NULL);
    if(hEdit == NULL)
        MessageBox(hWnd, "Could not create edit box.", "Error", MB_OK | MB_ICONERROR);

    hfDefault = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
    SendMessage(hEdit, WM_SETFONT, (WPARAM)hfDefault, MAKELPARAM(FALSE, 0));
    LogText(hEdit,logstring);
    break;

功能:

void LogText(HWND hEdit, const char * logstring)
{
const char * logstring2="\r\n";
int iLength = GetWindowTextLength(hEdit);
SendMessage(hEdit, EM_SETSEL, iLength, iLength);
SendMessage(hEdit, EM_REPLACESEL, 0, (LPARAM) logstring);
SendMessage(hEdit, WM_VSCROLL, SB_BOTTOM, (LPARAM)NULL);
int iLength2 = GetWindowTextLength(hEdit);
SendMessage(hEdit, EM_SETSEL, iLength2, iLength2);
SendMessage(hEdit, EM_REPLACESEL, 0, (LPARAM) logstring2);
SendMessage(hEdit, WM_VSCROLL, SB_BOTTOM, (LPARAM)NULL);

}

用法:

 logstring="Test";
LogText(hEdit, logstring);

就像我说的那样,它工作得很完美,除了它在吐出未知数据后停止工作,我注意到这是一个非常一致的数字。

1 个答案:

答案 0 :(得分:0)

您可以使用EM_SETLIMITTEXT消息更改编辑框的文本限制。在尝试将文本分配给编辑框之前,只需定义上限。