生成AVI时，如何在画面上添加文字

Question

在解码生成AVI时，如何在生成的AVI画面上添加文字内存中有解码后的DIB数据。

Answer 1

我已经解决了，现共享代码 void *pVideoOut = m_VideoOut;   //DIB数据存储区 HDC hWndDC=::GetDC(myhWnd);
HDC hMemDC=CreateCompatibleDC(hWndDC);

hMemBmp = CreateDIBSection(hWndDC, &m_BmpU, 0,&pVideoOut, NULL, 0 );
HBITMAP hOldBmp = (HBITMAP)SelectObject(hMemDC,hMemBmp); RECT rc;
::GetClientRect(myhWnd,&rc);
if(hOldBmp)
{
BITMAPINFOHEADER* pbih=&m_BmpU.bmiHeader; HDRAWDIB h=DrawDibOpen();
DrawDibDraw(h,hMemDC,0,0,rc.right,rc.bottom,pbih,pVideoOut,0,0,pbih->biWidth,pbih->biHeight,DDF_NOTKEYFRAME);
DrawDibClose(h); SetBkMode(hMemDC,TRANSPARENT);
SetTextColor(hMemDC,RGB(150,255,0));
DrawText(hMemDC,csTimer,-1,&rc,DT_LEFT);   //添加字符上去
if(!bBMP2AVI)
BitBlt(hWndDC,0,0,rc.right,rc.bottom,hMemDC,0,0,SRCCOPY);
hMemBmp =(HBITMAP)SelectObject(hMemDC,hOldBmp);   //得到结果图片
GetObject(hMemBmp,sizeof(dibs),&dibs);    //得到输出的DIB数据
}
DeleteDC(hMemDC);
::ReleaseDC(myhWnd,hWndDC);

if(!::IsWindowVisible(m_hWnd))
::ShowWindow(m_hWnd,SW_SHOW);