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| unit frm_WCMain;
interface
uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ExtCtrls, ComCtrls, ClipBrd;
type TForm1 = class(TForm) Button1: TButton; Animate1: TAnimate; procedure Button1Click(Sender: TObject); private FCapWnd: HWnd; public end;
var Form1: TForm1;
const WM_CAP_DRIVER_CONNECT = WM_USER + 10; WM_CAP_EDIT_COPY = WM_USER + 30; WM_CAP_SET_PREVIEW = WM_USER + 50; WM_CAP_SET_OVERLAY = WM_USER + 51; WM_CAP_SET_PREVIEWRATE = WM_USER + 52;
WM_CAP_DLG_VIDEOFORMAT = WM_USER+41; WM_CAP_DLG_VIDEOSOURCE = WM_USER+42; WM_CAP_DLG_VIDEOCOMPRESSION = WM_USER+46;
implementation
{$R *.dfm}
function capCreateCaptureWindow(lpszWindowName: LPCSTR; dwStyle: DWORD; x, y, nWidth, nHeight: integer; hwndParent: HWND; nID: integer): HWND; stdcall; external 'AVICAP32.DLL' name 'capCreateCaptureWindowA';
procedure TForm1.Button1Click(Sender: TObject); var handle:THandle; begin handle := capCreateCaptureWindow('Video',ws_child+ws_visible, 0, 0, 640, 480, Animate1.Handle, 1); SendMessage(handle, WM_CAP_DRIVER_CONNECT, 0, 0); SendMessage(handle, WM_CAP_SET_PREVIEWRATE, 30, 0); sendMessage(handle, WM_CAP_SET_OVERLAY, 1, 0); SendMessage(handle, wm_cap_set_preview, 1, 0); Application.ProcessMessages; end;
end. |