视屏聊天

Question

小弟近期想做一个视屏聊天的程序，不知道有没有人可以提供下关于视屏聊天的资料，用dspack获取视屏，然后压缩，传输,当然最好是源代码，不够再加分

Answer 1

你自己动手写写吧:const WM_CAP_START = WM_USER;
const WM_CAP_STOP = WM_CAP_START + 68;
const WM_CAP_DRIVER_CONNECT = WM_CAP_START + 10;
const WM_CAP_DRIVER_DISCONNECT = WM_CAP_START + 11;
const WM_CAP_SAVEDIB = WM_CAP_START + 25;
const WM_CAP_GRAB_FRAME = WM_CAP_START + 60;
const WM_CAP_SEQUENCE = WM_CAP_START + 62;
const WM_CAP_FILE_SET_CAPTURE_FILEA = WM_CAP_START + 20;
const WM_CAP_SEQUENCE_NOFILE =WM_CAP_START+ 63 
const WM_CAP_SET_OVERLAY =WM_CAP_START+ 51 
const WM_CAP_SET_PREVIEW =WM_CAP_START+ 50 
const WM_CAP_SET_CALLBACK_VIDEOSTREAM = WM_CAP_START +6;
const WM_CAP_SET_CALLBACK_ERROR=WM_CAP_START +2;
const WM_CAP_SET_CALLBACK_STATUSA= WM_CAP_START +3;
const WM_CAP_SET_CALLBACK_FRAME= WM_CAP_START +5;
const WM_CAP_SET_SCALE=WM_CAP_START+ 53 
const WM_CAP_SET_PREVIEWRATE=WM_CAP_START+ 52 function capCreateCaptureWindowA(lpszWindowName : PCHAR; dwStyle : longint; x : integer;
y : integer;nWidth : integer;nHeight : integer;ParentWin : HWND;
nId : integer): HWND;STDCALL EXTERNAL 'AVICAP32.DLL';//全局变量var hWndC : THandle//开始;
begin
hWndC := capCreateCaptureWindowA('My Own Capture Window',WS_CHILD or WS_VISIBLE ,Panel1.Left,Panel1.Top,Panel1.Width,Panel1.Height,Form1.Handle,0);hWndC := capCreateCaptureWindowA('My Own Capture Window',WS_CHILD or WS_VISIBLE ,Panel1.Left,Panel1.Top,Panel1.Width,Panel1.Height,Form1.Handle,0);
if hWndC <> 0 then 
begin
SendMessage(hWndC, WM_CAP_SET_CALLBACK_VIDEOSTREAM, 0, 0);
SendMessage(hWndC, WM_CAP_SET_CALLBACK_ERROR, 0, 0);
SendMessage(hWndC, WM_CAP_SET_CALLBACK_STATUSA, 0, 0);
SendMessage(hWndC, WM_CAP_DRIVER_CONNECT, 0, 0);
SendMessage(hWndC, WM_CAP_SET_SCALE, 1, 0);
SendMessage(hWndC, WM_CAP_SET_PREVIEWRATE, 66, 0);
SendMessage(hWndC, WM_CAP_SET_OVERLAY, 1, 0);
SendMessage(hWndC, WM_CAP_SET_PREVIEW, 1, 0);
end;//停止:
if hWndC <> 0 then
begin
  SendMessage(hWndC, WM_CAP_DRIVER_DISCONNECT, 0, 0);
  hWndC := 0;
end;//保存BMP
if hWndC <> 0 then 
begin
  SendMessage(hWndC,WM_CAP_SAVEDIB,0,longint(pchar('c:\mm.bmp')));
end;//开始录像
if hWndC <> 0 then
begin
  SendMessage(hWndC,WM_CAP_FILE_SET_CAPTURE_FILEA,0, Longint(pchar('c:\mm.avi')));
  SendMessage(hWndC, WM_CAP_SEQUENCE, 0, 0);
end;//停止录像
if hWndC <> 0 then
begin
  SendMessage(hWndC, WM_CAP_STOP, 0, 0);
end;

Answer 2

csdn文档区好像有vc的代码,你找找看

Answer 3

rouqing(*冰雨&双子座奇缘*)  的代码，如何将Bmp图像保存到内存流中，顶!

Answer 4

rouqing(*冰雨&双子座奇缘*) :能给个具体实现的例子吗