dlls/avicap32/avicap32_main.c

   1 /*
   2  * Copyright 2002 Dmitry Timoshkov for CodeWeavers
   3  * Copyright 2005 Maarten Lankhorst
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include <stdarg.h>
  21 #include "windef.h"
  22 #include "winbase.h"
  23 #include "wingdi.h"
  24 #include "winuser.h"
  25 #include "vfw.h"
  26 #include "winternl.h"
  27 #include "wine/debug.h"
  28
  29 #include "unixlib.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(avicap);
  32
  33 static HINSTANCE avicap_instance;
  34 static unixlib_handle_t unix_handle;
  35
  36 static const WCHAR class_name[] = L"wine_avicap_class";
  37
  38 static LRESULT CALLBACK avicap_wndproc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
  39 {
  40     switch (msg)
  41     {
  42         default:
  43             if (msg >= WM_CAP_START && msg <= WM_CAP_END)
  44                 FIXME("Unhandled message %#x.\n", msg);
  45             return DefWindowProcW(hwnd, msg, wparam, lparam);
  46     }
  47 }
  48
  49 static void register_class(void)
  50 {
  51     WNDCLASSEXW class =
  52     {
  53         .cbSize = sizeof(WNDCLASSEXW),
  54         .lpfnWndProc = avicap_wndproc,
  55         .hInstance = avicap_instance,
  56         .hCursor = LoadCursorW(NULL, (LPWSTR)IDC_ARROW),
  57         .hbrBackground = (HBRUSH)(COLOR_BTNFACE+1),
  58         .lpszClassName = class_name,
  59     };
  60
  61     if (!RegisterClassExW(&class) && GetLastError() != ERROR_CLASS_ALREADY_EXISTS)
  62         ERR("Failed to register class, error %lu.\n", GetLastError());
  63 }
  64
  65 static void unregister_class(void)
  66 {
  67     if (!UnregisterClassW(class_name, avicap_instance) && GetLastError() != ERROR_CLASS_DOES_NOT_EXIST)
  68         ERR("Failed to unregister class, error %lu.\n", GetLastError());
  69 }
  70
  71 /***********************************************************************
  72  *             capCreateCaptureWindowW   (AVICAP32.@)
  73  */
  74 HWND VFWAPI capCreateCaptureWindowW(const WCHAR *window_name, DWORD style,
  75         int x, int y, int width, int height, HWND parent, int id)
  76 {
  77     TRACE("window_name %s, style %#lx, x %d, y %d, width %d, height %d, parent %p, id %#x.\n",
  78             debugstr_w(window_name), style, x, y, width, height, parent, id);
  79
  80     return CreateWindowW(class_name, window_name, style, x, y, width, height, parent, NULL, avicap_instance, NULL);
  81 }
  82
  83 /***********************************************************************
  84  *             capCreateCaptureWindowA   (AVICAP32.@)
  85  */
  86 HWND VFWAPI capCreateCaptureWindowA(const char *window_name, DWORD style,
  87         int x, int y, int width, int height, HWND parent, int id)
  88 {
  89     UNICODE_STRING nameW;
  90     HWND window;
  91
  92     if (window_name)
  93         RtlCreateUnicodeStringFromAsciiz(&nameW, window_name);
  94     else
  95         nameW.Buffer = NULL;
  96
  97     window = capCreateCaptureWindowW(nameW.Buffer, style, x, y, width, height, parent, id);
  98     RtlFreeUnicodeString(&nameW);
  99
 100     return window;
 101 }
 102
 103 /***********************************************************************
 104  *             capGetDriverDescriptionA   (AVICAP32.@)
 105  */
 106 BOOL VFWAPI capGetDriverDescriptionA(WORD wDriverIndex, LPSTR lpszName,
 107                                      INT cbName, LPSTR lpszVer, INT cbVer)
 108 {
 109    BOOL retval;
 110    WCHAR devname[CAP_DESC_MAX], devver[CAP_DESC_MAX];
 111    TRACE("--> capGetDriverDescriptionW\n");
 112    retval = capGetDriverDescriptionW(wDriverIndex, devname, CAP_DESC_MAX, devver, CAP_DESC_MAX);
 113    if (retval) {
 114       WideCharToMultiByte(CP_ACP, 0, devname, -1, lpszName, cbName, NULL, NULL);
 115       WideCharToMultiByte(CP_ACP, 0, devver, -1, lpszVer, cbVer, NULL, NULL);
 116    }
 117    return retval;
 118 }
 119
 120 /***********************************************************************
 121  *             capGetDriverDescriptionW   (AVICAP32.@)
 122  */
 123 BOOL VFWAPI capGetDriverDescriptionW(WORD index, WCHAR *name, int name_len, WCHAR *version, int version_len)
 124 {
 125     struct get_device_desc_params params;
 126
 127     params.index = index;
 128     if (!unix_handle || __wine_unix_call(unix_handle, unix_get_device_desc, &params))
 129         return FALSE;
 130
 131     TRACE("Found device name %s, version %s.\n", debugstr_w(params.name), debugstr_w(params.version));
 132     lstrcpynW(name, params.name, name_len);
 133     lstrcpynW(version, params.version, version_len);
 134     return TRUE;
 135 }
 136
 137 BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, void *reserved)
 138 {
 139     switch (reason)
 140     {
 141         case DLL_PROCESS_ATTACH:
 142             NtQueryVirtualMemory(GetCurrentProcess(), instance,
 143                     MemoryWineUnixFuncs, &unix_handle, sizeof(unix_handle), NULL);
 144             DisableThreadLibraryCalls(instance);
 145             register_class();
 146             avicap_instance = instance;
 147             break;
 148
 149         case DLL_PROCESS_DETACH:
 150             if (!reserved)
 151                 unregister_class();
 152             break;
 153     }
 154
 155     return TRUE;
 156 }