如何自動下滾一個RichEdit的文本框的Win32 C/C++

這裏是我的代碼，追加的消息給RichEdit文本框：如何自動下滾一個RichEdit的文本框的Win32 C/C++

CHARFORMAT cf; 
memset(&cf, 0, sizeof cf); 
cf.cbSize = sizeof cf; 
cf.dwMask = CFM_COLOR; 
if (getuserofmessage(msg) == myname) 
cf.crTextColor = RGB(0,0,255);// <----- the color of the text 
else if (getuserofmessage(msg) == "admin") 
cf.crTextColor = RGB(255,0,0);// <----- the color of the text 
else 
cf.crTextColor = RGB(55,200,100);// <----- the color of the text 

SendMessage(hwnd , EM_SETCHARFORMAT, (LPARAM)SCF_SELECTION, (LPARAM) &cf); 

/*SendMessage(hwnd, EM_SETSEL, 0, -1); 
    SendMessage(hwnd, EM_SETSEL, -1, -1); 
    SendMessage(hwnd, EM_REPLACESEL, 0, (LPARAM)msg.c_str());*/ 
    CHARRANGE cr; 
cr.cpMin = -1; 
cr.cpMax = -1; 

// hwnd = rich edit hwnd 
SendMessage(hwnd, EM_EXSETSEL, 0, (LPARAM)&cr); 
SendMessage(hwnd, EM_REPLACESEL, 0, (LPARAM)msg.c_str());

，並在這裏被用於在RichEdit文本框給createWindow：

hwnd=CreateWindowEx(WS_EX_CLIENTEDGE, RICHEDIT_CLASS, "",     
ES_READONLY | WS_CHILD | WS_VISIBLE | WS_VSCROLL | ES_MULTILINE | ES_AUTOVSCROLL, 
x, 
y, 
w, 
h, 
parent, 
(HMENU)identifier, 
GetModuleHandle(NULL), 
NULL);

但是，當文本框中的消息變得非常適合它時，它不會自動向下滾動，迫使用戶不得不不斷向下滾動。所有其他面臨這個問題的參考都是.NET或c＃。不管我怎麼把光標設置在追加後面的文本框的底部？或類似的東西。任何幫助表示讚賞。謝謝。

編輯：我嘗試添加：

DWORD TextSize; 
TextSize=GetWindowTextLength(hwnd); 
SendMessage(hwnd,EM_SETSEL,TextSize,TextSize); 
SendMessage(hwnd,EM_SCROLLCARET,0,0);

後我追加的代碼，因爲這是別人的解決方案，但對我沒有工作

來源

2014-01-23 user1397417

之前插入文本， int start_lines, end_lines; start_lines = SendMessage(hwnd, EM_GETLINECOUNT,0,0);

插入文字後， end_lines = SendMessage(hwnd, EM_GETLINECOUNT,0,0); SendMessage(hwnd, EM_LINESCROLL, 0, end_lines - start_lines);

來源

2014-02-23 04:24:31 Mitchell

SendMessage(hwnd, WM_VSCROLL, SB_BOTTOM, 0L);

插入文字後最適合我。

來源

2014-03-11 13:54:10 user3406468

delphi試試這個。

SendMessage(RichEdit1.Handle, WM_VSCROLL, SB_BOTTOM, 0);

來源

2016-04-10 08:35:13

如何自動下滾一個RichEdit的文本框的Win32 C/C++

回答

相關問題