在DSPACK包的DEMO里面有个D6-D7\videocap.dpr,main.pas中有段源码是这样子的
CapEnum := TSysDevEnum.Create(CLSID_VideoInputDeviceCategory);
for i := 0 to CapEnum.CountFilters - 1 do
VideoCapFilters.Items.Add(CapEnum.Filters[i].FriendlyName); CapEnum.SelectGUIDCategory(CLSID_AudioInputDeviceCategory);
for i := 0 to CapEnum.CountFilters - 1 do
AudioCapFilters.Items.Add(CapEnum.Filters[i].FriendlyName);
这句CapEnum := TSysDevEnum.Create(CLSID_VideoInputDeviceCategory);是枚举视频输入类的,我想应该没错吧。但音频枚举为什么会是这句CapEnum.SelectGUIDCategory(CLSID_AudioInputDeviceCategory);而不是
CapEnum := TSysDevEnum.Create(CLSID_AudioInputDeviceCategory);
有高手能解答下么?
CapEnum := TSysDevEnum.Create(CLSID_VideoInputDeviceCategory);
for i := 0 to CapEnum.CountFilters - 1 do
VideoCapFilters.Items.Add(CapEnum.Filters[i].FriendlyName); CapEnum.SelectGUIDCategory(CLSID_AudioInputDeviceCategory);
for i := 0 to CapEnum.CountFilters - 1 do
AudioCapFilters.Items.Add(CapEnum.Filters[i].FriendlyName);
这句CapEnum := TSysDevEnum.Create(CLSID_VideoInputDeviceCategory);是枚举视频输入类的,我想应该没错吧。但音频枚举为什么会是这句CapEnum.SelectGUIDCategory(CLSID_AudioInputDeviceCategory);而不是
CapEnum := TSysDevEnum.Create(CLSID_AudioInputDeviceCategory);
有高手能解答下么?
CapEnum := TSysDevEnum.Create(CLSID_AudioInputDeviceCategory);背后再用:
CapEnum.SelectGUIDCategory(CLSID_VideoInputDeviceCategory);